Example of a smart meter based onOpen smart grid protocol (OSGP) inuse in Europe that has the ability toreduce load, disconnect­reconnectremotely, and interface to gas andwater meters.

Newer retrofitted U.S. domesticdigital electricity meter Elster REX[1]

with 900MHz[2] mesh networktopology for automatic meter readingand "EnergyAxis" time­of­usemetering.[3][4][5]

Each local mesh networked smartmeter has a hub such as this Elster A3Type A30 which interfaces 900MHzsmart meters to the meteringautomation server via a landline.[6]

Smart meterFrom Wikipedia, the free encyclopedia

A smart meter is usually an electronic device that records consumption of electric energy in intervals of an hour or less andcommunicates that information at least daily back to the utility for monitoring and billing.[7] Smart meters enable two­waycommunication between the meter and the central system. Unlike home energy monitors, smart meters can gather data forremote reporting. Such an advanced metering infrastructure (AMI) differs from traditional automatic meter reading (AMR) inthat it enables two­way communications with the meter.

Contents

1 Overview2 Brief history3 Purpose4 Implementation examples

4.1 Australia4.2 Canada4.3 Italy4.4 Japan4.5 Netherlands4.6 New Zealand4.7 Nordic countries4.8 Spain4.9 United Kingdom4.10 United States

4.10.1 California4.10.2 Maryland4.10.3 Texas4.10.4 Florida4.10.5 Oklahoma and Arkansas

5 Imminent implementation5.1 France5.2 Ireland5.3 Italy5.4 Iran5.5 Malta

6 Technology6.1 Protocols6.2 Data management

7 Security8 Advanced metering infrastructure9 Opposition and concerns

9.1 Health and safety9.2 Privacy concerns9.3 Opt­out options9.4 Lack of savings in results9.5 In the media

10 See also11 References12 External links

Overview

The term Smart Meter often refers to an electricity meter, but it also may mean a device measuring natural gas or waterconsumption.

Similar meters, usually referred to as interval or time­of­use meters, have existed for years, but "Smart Meters" usually involvereal­time or near real­time sensors, power outage notification, and power quality monitoring. These additional features are morethan simple automated meter reading (AMR). They are similar in many respects to Advanced Metering Infrastructure (AMI)meters. Interval and time­of­use meters historically have been installed to measure commercial and industrial customers, butmay not have automatic reading.

Research by Which?, the UK consumer group, showed that as many as one in three confuse smart meters with energy monitors,also known as in­home display monitors [8] The roll­out of smart meters is one strategy for energy savings. While energysuppliers in the UK could save around £300 million a year from their introduction, consumer benefits will depend on peopleactively changing their energy use. For example, time of use tariffs offering lower rates at off­peak times, and selling electricityback to the grid with net metering, may also benefit consumers.

The installed base of smart meters in Europe at the end of 2008 was about 39 million units, according to analyst firm BergInsight.[9] Globally, Pike Research found that smart meter shipments were 17.4 million units for the first quarter of 2011.[10]

Visiongain has determined that the value of the global smart meter market will reach $7bn in 2012.[11]

Smart meters may be part of a smart grid, but alone, they do not constitute a smart grid.[12]

Brief history

In 1972, Theodore George “Ted” Paraskevakos, while working with Boeing in Huntsville, Alabama, developed a sensor monitoring system which used digitaltransmission for security, fire and medical alarm systems as well as meter reading capabilities for all utilities. This technology was a spin­off of the automatic telephoneline identification system, now known as Caller ID.

A very old and rusted box housing asmart meter as found near a Circle Ksupermarket along the main road inSouth Bali near Gianyar.

In 1974, Mr. Paraskevakos was awarded a U.S. patent for this technology.[13] In 1977, he launched Metretek, Inc.[7] (http://www.metretekfl.com), which developedand produced the first fully automated, commercially available remote meter reading and load management system. Since this system was developed pre­Internet,Metretek utilized the IBM series 1 mini­computer. For this approach, Mr. Paraskevakos and Metretek were awarded multiple patents.[14]

Purpose

Since the inception of electricity deregulation and market­driven pricing throughout the world, utilities have been looking for ameans to match consumption with generation. Traditional electrical and gas meters only measure total consumption, and soprovide no information of when the energy was consumed at each metered site (market use rates are readily available to utilitieshowever). Smart meters provide a way of measuring this site­specific information, allowing utility companies to introducedifferent prices for consumption based on the time of day and the season.[15]

Utility companies propose that from a consumer perspective, smart metering offers potential benefits to householders. Theseinclude, a) an end to estimated bills, which are a major source of complaints for many customers b) a tool to help consumersbetter manage their energy purchases ­ stating that smart meters with a display outside their homes could provide up­to­dateinformation on gas and electricity consumption and in doing so help people to manage their energy use and reduce their energybills. Electricity pricing usually peaks at certain predictable times of the day and the season. In particular, if generation isconstrained, prices can rise if power from other jurisdictions or more costly generation is brought online. Proponents assert thatbilling customers at a higher rate for peak times will encourage consumers to adjust their consumption habits to be moreresponsive to market prices and assert further, that regulatory and market design agencies hope these "price signals" could delaythe construction of additional generation or at least the purchase of energy from higher priced sources, thereby controlling thesteady and rapid increase of electricity prices. There are some concerns, however, that low income and vulnerable consumers may not benefit from intraday time­of­usetariffs.

An academic study based on existing trials showed that homeowners' electricity consumption on average is reduced by approximately 3­5%.[16]

The ability to connect/disconnect service and read meter consumption remotely are major labor savings for the utility and can result in large layoffs of meterreaders.[17]

Implementation examples

The American Council for an Energy­Efficient Economy reviewed more than 36 different residential smart metering and feedback programmes internationally. This isthe most extensive study of its kind (as of January 2011). Their conclusion was: “To realise potential feedback­induced savings, advanced meters [smart meters] mustbe used in conjunction with in­home (or on­line) displays and well­designed programmes that successfully inform, engage, empower and motivate people."[18] Thereare near universal calls from both the energy industry and consumer groups for a national social marketing campaign to help raise awareness of smart metering andgive customers the information and support they need to become more energy efficient, and what changes they must make to realize the potential of proposed smartmeters.

Australia

In 2004, the Essential Services Commission of Victoria, Australia (ESC) released its changes to the Electricity Customer Metering Code and Procedure to implementits decision to mandate interval meters for 2.6 million Victorian electricity customers.

The ESC's Final Paper titled "Mandatory Rollout of Interval Meters for Electricity Customers" foreshadowed the changes to be implemented and contained the rollouttimetable requiring interval meters to be installed for all small businesses and residences. The rollout commenced in mid­2009 and was completed at the end of2013.[19]

The Commonwealth issued a Joint Communiqué at the Council of Australian Governments meeting in Canberra on 10 February 2006 committing all governments tothe progressive rollout of smart metering technology from 2007.[20]

In 2009 the Victorian Auditor General undertook a review of the program and found that there were "significant inadequacies" in advice to government and that projectgovernance "has not been appropriate".[21]

Meters installed in Victoria have been deployed with limited smart functionality that is being increased over time. 30­minute interval data is available, remote cut­offand start­up energization is available, and the Home Area Network will be available for households in 2012.

In May 2010 it was reported that the program was expected to cost $500 million more than originally estimated by proponents, with a total cost of $1.6 billion.[22]

In November 2010 the Victorian Labor Party was voted out of state government. The incoming coalition stated that the meter program would be reviewed and theAuditor General's recommendations implemented, specifically commenting on program governance, customer data protection, and cost recovery.[23] In January 2011the Energy Minister, Michael O'Brien, said he was not ruling out a suspension of the program.[24] This review, delivered in December 2012 endorsed the continuationof the roll out, with minor changes.[25]

The Victorian Government after initially halting the planned implementation of Time­of­Use tariffs[26] for general consumers has now allowed their introduction frommid­2013.[27]

As shown in the chart below, Victorian metering charges increased by approximately $60 per meter per year after the introduction of AMI cost recovery fromcustomers in 2010 and a projected increase to 125.73 by 2016­2017.[28]

By mid­July 2013, the first Smart Meter In­Home Displays were being made available to Victorian consumers.[29] At the beginning of 2014 there were three approvedSmart Meter In­Home Displays directly available to consumers.[30]

Annual meter charge increases with smart meter costs in 2010 and projections to 2017 ($)

Distributor 2005 2006 2007 2008 2009 2010 2011 2012 2013 2015 2016 2017SP AusNet 17.49 17.49 17.49 17.49 17.49 86.1 93.83 101.02 108.75 117.08 126.04United Energy Distribution 6.60 6.60 6.60 6.60 6.60 69.21 89.18 99.57 107.62 116.33 125.73Jemena Electricity Networks 12.87 12.87 12.87 12.87 12.87 134.63 136.7 155.84 159.86 162.34 164.88Citipower 15.20 15.20 15.20 15.20 15.20 104.79 108.4 93.38 95.26 97.17 99.13Powercor 17.20 17.20 17.20 17.20 17.20 96.67 105.35 92.72 93.91 95.12 96.34

Canada

The Ontario Energy Board in Ontario, Canada has worked to define the technology [31] and develop the regulatory framework for its implementation. The Governmentof Ontario set a target of deploying smart meters to 800,000 homes and small businesses (i.e. small "general service" customers under 50 kW demand) by the end of2007, which was surpassed, and throughout the province by the end of 2010.[32] BC Hydro in British Columbia, Canada has implemented Itron smart meters to most ofits customers by the end of 2012.[33]

Smart meter installations have been associated with several fires in Canada but these were probably caused by preexisting problems unrelated to the meters.[34] BCHydro maintains that "the risk of a smart meter installation causing an electrical problem is extremely low" and will assist homeowners if repairs are necessary for asafe installation.

In November 2011, the Union of British Columbia Municipalities voted in favour of a moratorium to temporarily suspend smart meter installations.[35] The provincialgovernment insists that installations will proceed, based on global standards.[35] As of May 2012, 39 municipalities in British Columbia have passed motions opposingthe installation of smart meters. The utility company, BC Hydro, is not legally obliged to abide by these city decisions.[36] In September 2013 BC Hydro announced the"Meter Choices Program" which allows customers to keep their old meter or have a smart meter with the radio off. Both options have an additional monthly fee of$30.00 per month.[37]

Italy

The world's largest smart meter deployment was undertaken by Enel SpA, the dominant utility in Italy with more than 30 million customers. Between 2000 and 2005Enel deployed smart meters to its entire customer base.

These meters are fully electronic and smart, with integrated bi­directional communications, advanced power measurement and management capabilities, an integrated,software­controllable disconnect switch, and an all solid­state design. They communicate over low voltage power line using standards­based power line technologyfrom Echelon Corporation to Echelon data concentrators at which point they communicate via IP to Enel's enterprise servers. Demonstrating that with power linecommunication, smart meters don't require WiFi radios.[38]

The system provides a wide range of advanced features, including the ability to remotely turn power on or off to a customer, read usage information from a meter,detect a service outage, change the maximum amount of electricity that a customer may demand at any time, detect "unauthorized" use of electricity and remotely shutit off, and remotely change the meter's billing plan from credit to prepay, as well as, from flat­rate to multi­tariff.

Japan

The Energy Conservation Center [39] in Japan promotes energy efficiency including smart metering. Public utilities have started to test metering with integratedcommunication devices. Private entities have already implemented efficient energy systems with integrated feedback methods such as alerts or triggers.

Netherlands

The company Oxxio introduced the first smart meter for both electricity and gas in the Netherlands in 2005. In 2007, the Dutch government proposed that all sevenmillion households of the country should have a smart meter by 2013, as part of a national energy reduction plan.

In August 2008 the roll out of these seven million meters was delayed for several reasons. Main reasons for the delay were that there was limited possibility foreseen toregister small scale local energy production (e.g. by solar panels), and that there was uncertainty in the parliament on future developments in smart meters.

On April 7, 2009 the Dutch government had to back down after consumer groups raised privacy concerns. Instead of a mandatory roll­out smart meters will bevoluntary.[40]

New Zealand

In November 2005, energy supplier Meridian Energy introduced the usage of smart meters in the Central Hawkes Bay area with more than 1000 householdsparticipating. By late 2006, over 6,300 smart meters had been installed as part of the initial trial. On June 28, 2007 the first roll­out began for households inChristchurch [41] and there are plans to install more than 112,000 smart meters by January 2009.[42] These smart meters are made by a Christchurch­based company,Arc Innovations (http://www.arcinnovations.com) which is a wholly owned subsidiary of Meridian Energy.

In June 2009, the Parliamentary Commissioner for the Environment released a report,[43] which was critical of the "lack of smartness" in the 150,000 smart metersinstalled in New Zealand thus far. Dr Jan Wright called for government leadership for this "infrastructure of national importance." Dr Wright emphasised that themeters were capable of being smart, but that the failure to include the HAN chips at the initial installation meant that currently only the power retailers benefited, notconsumers, nor the environment.

In 2015 the New Zealand office of the Privacy Commissioner raised concerns that smart meters recorded personal information including the time that homeownerswere home or not, the office said "the [smart meter] readings undoubtedly contained private information, and power companies needed to be more upfront about theirhandling of the torrent of personal information gathered by smart meters".[44]

Nordic countries

Northern Europe became the hotspot for AMM (Advanced Metering Management) in Europe in 2003 when Sweden announced the decision to require monthlyreadings of all electricity meters by 2009. Soon activities spread to the other Nordic countries. Vattenfall, Fortum, and E.ON decided to deploy AMM in Finland aswell as in Sweden, as the leading industry players in both countries at the time.

Developments in Denmark took off in 2004 with several ambitious projects being announced by the country’s largest utilities. Norway has taken a more cautiousstance, but in June 2007 the Norwegian energy authority, NVE, declared that it would recommend new legislation requiring smart meters to take effect in 2013. As ofAugust 2007, almost all of the DSOs in Sweden had signed contracts for AMM solutions. Norway was lagging behind with just 6 percent. Altogether contracts fornearly 8 million smart meters are still open in the Nordic region.

Spain

Information gathered from "SmartRegions" program.[45] Summary of the European Smartmettering deployment.[46] [47]

Spain is a country with 46 million inhabitants and approximately 26 million electricity customers. Three major energy players act in the country, Endesa, Iberdrola, andGas Natural/Unión Fenosa, with a market share of almost 95%. ESMA (2010, 26­28) provides a good overview of the situation in Spain. By 2013, Endesa hasreplaced about 30% of meters (based on the Meters and More technology), of about 3.5 million customers.

Regulations existing in Spain related to implementation of smart meters:

RD 1634/2006: Order to the Regulator (Comisión Nacional de Energía, CNE) about a substitution plan including the substitution plan for all Spanish residentialmeters, criteria for the substitution and number of meters to install every year: percentage of the total equipmentORDEN ITC/3860/2007: Publication of the criteria for the Substitution Plan, including that every distributor has to present its own plan and AMM system designBased on the Royal Decrees a meter substitution plan was established with an obligation to install smart meters for all consumers under 15 kW by 2018; by 31December 2010, 30% of the contracts from each distribution company below 15 kW should have the smart meter installed; distribution companies areresponsible for the installation of the meters.

The Smart Metering obligations were established in December 2007 with the national meter substitution plan for end­users up to 15 kW. The aim is to support remoteenergy management systems. The plan is managed by the Ministry of Industry, with a deadline for the completion of the plan by 31 December 2018. All DSOs had tosubmit their substitution plans to the regional governments. A binding target of 30% of all customers was set for 2010. This initial target could not be reached by any ofthe DSOs, however, due to a late approval of the substitution plan (in May 2009), technological uncertainties in terms of system communication, alleged supplyproblems of certified meters that were available only in June 2010 and ongoing negotiations with the regulators about the level of cost acceptance.

United Kingdom

In August 2007, the UK Government consulted on smart meter roll­out. The consultation attached the necessary draft regulations and proposed that from 2008domestic customers provide comparative historical consumption data and electricity suppliers provide a real­time display unit within time limits; and, for business, gasand electricity suppliers install smart meters in those parts of the SME sector, where it has been shown to be cost­effective to do so and where such a meter is notalready installed.[48]

In December 2009, the United Kingdom's Department of Energy and Climate Change announced its intention to have smart meters in all homes in Great Britain by2020.[49] The model is a competitive­supplier­led rollout with a central communications body, called the Data and Communications Company (DCC), which wasestablished in September 2013. As well as the DCC, the government established Smart Energy GB to lead the nationwide publicity for the rollout programme.[50]

The United Kingdom rollout is considered to be the largest programme ever undertaken – involving visits to 30 million homes and 2 million small businesses to replacemeters for both gas and electricity. Most households will have smart meters installed by their energy company between 2015 and 2020, although some energycompanies are starting to install smart meters already.[51] At the end of 2013 there were 295,700 smart meters installed in domestic properties in Great Britain.[52]

In order to decide whether or not to mandate the rollout of smart meters, impact assessments by government help establish if there is a positive business case for Britainto roll out smart metering. These look at the potential costs and benefits of rolling out smart meters to suppliers, network operators, customers, and Britain as a whole.DECC’s Impact Assessment, updated in January 2014, concludes that there is a positive business case overall of a smart meter rollout of £6.2 billion of net benefits.[53]

In May 2013 the Government reviewed the programme timetable. The Government tested the time needed for the design, build and test phases of industry’sprogrammes. The consistent message was that more time was needed if the roll­out of smart meters were to get off to the best possible start and if customers were to besure of a quality service. The Government therefore now expects that the smart meter roll­outs will be completed by the end of 2020.[54]

Consumer groups such as Consumer Focus [55] and Which? have raised concerns about the extent to which consumer interests will be protected during the roll­out. Forexample, there has been concern that consumers may experience pressure selling while energy representatives are in their homes fitting meters.[56] The Government hasnow banned sales activities during meter installation visits [54] and put in place a number of consumer protection measures, including ensuring that consumers will havechoice and control over how their energy consumption data is used, apart from where it is required for billing purposes.[57]

United States

California

Some areas of California have smart meters,[58] although as of January 2012 there is a moratorium in Santa Cruz.[59] The two main reasons are health and privacy.

On July 20, 2006, California's energy regulators approved a program to roll out conventional meters retrofit with communications co­processor electronics to 9 milliongas and electric household customers in the Northern California territory of Pacific Gas and Electric (PG&E). These meters report electricity consumption on an hourlybasis. This enables PG&E to set pricing that varies by season and time­of­the day, rewarding customers who shift energy use to off­peak periods. The peak pricingprogram will start out on a voluntary basis and the full rollout is expected to take five years.[60] The smart grid currently allows PG&E to give customers timing andpricing options for upload to the grid.

The largest municipal utility in the U.S., the Los Angeles Department of Water and Power (LADWP), has chosen to expand its advanced metering infrastructure (AMI)serving its commercial and industrial (C&I) customers. LADWP has already purchased 9,000. The utilities’ commercial and industrial customers may tailor their dailyenergy consumption around the data provided by the smart meters, thus creating potential for reducing their monthly electricity bill and, at a broader level, contributingto global energy conservation.

Maryland

In spring 2012, Baltimore Gas and Electric (BGE) of Maryland began installing or upgrading approximately two million electric and gas meters in every home andsmall business in their service area. This process will take about three years to complete.[61] BGE smart meters will help customers manage their energy and savemoney. Some features, such as energy budgeting and tracking and personalized energy efficiency tips will be available by 2012. Additional features will follow in2013.

Texas

Austin Energy, the nation's ninth largest community­owned electric utility, with nearly 400,000 electricity customers in and around Austin, Texas, began deploying atwo­way RF mesh network and approximately 260,000 residential smart meters in 2008. More than 165,000 two­way meters have been installed by spring 2009, andintegration with AE's meter data management system is underway. A previous project in 2002 exchanged approximately 140,000 mechanical meters for smart meters atresidential apartments, condominiums, and other high­meter­density locations.[62]

Centerpoint Energy in Houston, Texas, is currently in the deployment stage of installing smart meters to more than 2 million electricity customers in the Houston­Metro and Galveston service locations. Current estimated completion of CenterPoint Energy's smart meter deployment is 2012.[63] In October 2009, the U.S.Department of Energy awarded a $200 million grant for use in deployment of Centerpoint Energy's smart meter network.[64]

Oncor Electric Delivery, based in Dallas, Texas, is currently deploying smart meters to more than three million customers in North Texas. Oncor’s full deployment isscheduled to be complete by the end of 2012. The Oncor Advanced Metering System (AMS) currently supports 15­minute­interval data, remote disconnects, and aHome Area Network (HAN) using ZigBee Smart Energy Protocol 1.0. The AMS supports text messages, pricing signals, and load control to home users through theSmart Meter Texas Portal which is a joint project by Oncor, CenterPoint, and AEP Texas under the direction of the Texas Public Utility Commission. [65] [66] [67] Thisrequires customers to register telephone numbers and computer addresses.

San Antonio, Texas­based CPS Energy has launched a pilot program with 40,000 smart meters deployed as of the summer of 2011.[68] CPS plans to completeinstallation of smart meters (electricity and gas) for all customers by the end of 2016.[69] Each meter reports data to CPS every 15 minutes over a wireless network,making the data available to the customer through the CPS website.[70]

El Paso Electric does not have any plans to implement Smart Grid meters as of April 2014.

A long­awaited application of smart meters in the Texas deregulated electricity market is time­of­use rates. Several retail electric providers including TXU Energy andDirect Energy have introduced rate plans that leverage smart meters to incentivize customers who shift load to off­peak hours. Excluding TNMP (PNM Resources),smart meter conversion rates for commercial and residential customers in utilities open to retail electric competition were in excess of 99% as of November 6, 2014.[71]

Florida

Florida­based Florida Power & Light began installing smart meters in 2009 in the Miami­Dade area for residential customers. All customers are expected to becompleted by 2013.[72] Individual counties are considering "opt­out" options, however, and to date, customers are being allowed to register on an "opt­out" registry incounties that have not begun.

Oklahoma and Arkansas

Six thousand end users in parts of Oklahoma and Arkansas are part of a program with in­home devices and automation systems conducted by The Oklahoma Gas andElectric (OG&E) company. The project costs $357 million, $130 million of which was funded by the federal government. The dynamic pricing program is opt­in andthe data is also used to study consumer behavior.[73]

The city of Duncan, Oklahoma conducted a smart grid implementation to automatically collect electricity and water usage data from 9,000 electric meters and 12,000water meters. Duncan’s project was funded by the American Recovery and Reinvestment Act and a 15­year, $14.2 million energy savings performance contract.Honeywell installed the smart meter network as part of a broader program mostly unrelated to smart meters. The program was purchased as part of an unusual $1.7million savings guarantee.[74]

Imminent implementation

France

A smart metering pilot project, called "Linky", is being conducted by Electricité Réseau Distribution France (ERDF) involving 300,000 clients supplied by 7,000 low­voltage transformers. In June 2008 ERDF awarded the AMM pilot project to a consortium managed by Atos Origin, including Actaris, Landis+Gyr, and Iskraemeco.The aim of the trial is to deploy 300k meters and 6k concentrators in two distinct geographic areas, the Indre­et­Loire (37) department and the Lyon urban region (69).This project affecting 1% of LV customers is a precursor to national deployment for 35 million clients in France. The experimentation phase started in March 2010. Akey determining factor will be the interoperability of the equipment of various suppliers. The general deployment phase, involving replacement of 35 million meters,will start in 2016 and continue through 2020.

Ireland

Upon getting into the coalition government in 2007, Eamon Ryan, the Green Party Minister for Communications, Energy and Natural Resources, pledged to introducesmart meters for every home in the Republic of Ireland within a five­year period. In an interview the minister said he envisages a situation where smart meters woulduse plug­in hybrid cars as storage for micro­generated renewable energy by intelligently diverting the energy into the car.[75] A leading energy expert has expressedconcerns that whatever system of smart metering arises in Ireland must give homeowners the possibility of automatically responding to fluctuating electricity prices by,for instance, buying electricity when at its cheapest, and selling micro­generated electricity from wind turbines or solar photovoltaic panels into the grid when the bestprice is available.[76]

Italy

As stated above, Italy has already deployed smart electrical meters. Legislation has recently been released, forcing gas utilities to deploy smart gas meters from largeindustrial consumers down to almost every residential customer by the end of 2016.[77]

It is expected and desired, that remote reading and management of smart gas meters will be fully independent of the existing system of smart electrical meters. Thetechnology intended to be used, mainly, will be radio­based. More information can be found on the webpage published by the authority.[78]

Iran

In Iran, like many other developed countries, Smart Grid implementation is regarded as a unique way for encountering many serious environmental and economicchallenges that mankind is faced today. FAHAM is the National Smart Metering Program in Iran. The functional, technical, security, economic, and generalrequirements of this project was published as a document after a longtime workgroup of various stakeholders including representative of grid operators, metermanufactures, communication providers, business layer software providers, domestic and international consultants. The procedure of producing this document was

base on EPRI Methodology (IEC 62559). In these technical documents all of the business and functional use cases, the conceptual architecture, mandatory internationalstandards for electric, water and gas metering systems(for all types of consumers),telecommunication requirements, system interfaces and security mandates aredefined. The ministry of energy decided to perform a pilot project called FAHAM­phase1, inorder to experiment the technical and executional challenges forimplementing Smart Metering for all of the consumers (about thirty million consumers).

Malta

Malta is in the process of implementing smart meters in all commercial and private households. Enemalta, a governmental company responsible for electricity isresponsible for the introduction of the smart meters. This will occur in phases and it is projected that every meter in Malta will be 'smart' by 2012. This will costapproximately 40 million euros, being paid by the Ministry of Infrastructure, Technology, and Communication. The 'smart meters' being used in Malta aremanufactured by IBM. A pilot project is currently underway and more than 5,000 are being installed.[79] The cost of the installation will be totally absorbed by thegovernment, i.e. the taxpayers.

Technology

Of all smart meter technologies, one critical technological problem is communication. Each meter must be able to reliably and securely communicate the informationcollected to some central location. Considering the varying environments and locations where meters are found, that problem can be daunting. Among the solutionsproposed are: the use of cell and pager networks, satellite, licensed radio, combination licensed and unlicensed radio, and power line communication. Not only themedium used for communication purposes, but also the type of network used, is critical. As such, one would find: fixed wireless, mesh network or a combination of thetwo. There are several other potential network configurations possible, including the use of Wi­Fi and other internet related networks. To date no one solution seems tobe optimal for all applications. Rural utilities have very different communication problems from urban utilities or utilities located in difficult locations such asmountainous regions or areas ill­served by wireless and internet companies.

In addition to communication with the head­end network, smart meters may need to be part of a Home Area Network which can include an In­Premise Display and ahub to interface one or more meters with the head end. Technologies for this network will vary from country to country but include Power line communication andZigBee.

Protocols

ANSI C12.18 is an ANSI standard that describes a protocol used for two­way communications with a meter, mostly used in North American markets. The C12.18standard is written specifically for meter communications via an ANSI Type 2 Optical Port, and specifies lower­level protocol details. ANSI C12.19 specifies the datatables that will be used. ANSI C12.21 is an extension of C12.18 written for modem instead of optical communications, so it is better suited to automatic meter reading.

IEC 61107 is a communication protocol for smart meters published by the IEC that is widely used for utility meters in the European Union. It is superseded by IEC62056, but remains in wide use because it is simple and well­accepted. It sends ASCII data using a serial port. The physical media are either modulated light, sent withan LED and received with a photodiode, or a pair of wires, usually modulated by EIA­485. The protocol is half­duplex. IEC 61107 is related to, and sometimeswrongly confused with, the FLAG protocol. Ferranti and Landis+Gyr were early proponents of an interface standard that eventually became a sub­set of IEC1107.

The Open Smart Grid Protocol (OSGP) is a family of specifications published by the European Telecommunications Standards Institute (ETSI) used in conjunctionwith the ISO/IEC 14908 control networking standard for smart metering and smart grid applications. Millions of smart meters based on OSGP are deployedworldwide.[80] Numerous major security flaws in the OSGP protocol have been identified.[81][82]

There is a growing trend toward the use of TCP/IP technology as a common communication platform for Smart Meter applications, so that utilities can deploy multiplecommunication systems, while using IP technology as a common management platform.[83][84] A universal metering interface would allow for development and massproduction of smart meters and smart grid devices prior to the communication standards being set, and then for the relevant communication modules to be easily addedor switched when they are. This would lower the risk of investing in the wrong standard as well as permit a single product to be used globally even if regionalcommunication standards vary.[85]

Some smart meters may use a test IR LED to transmit non­encrypted usage data that bypasses meter security by transmitting lower level data in real time. [86]

Data management

The other critical technology for Smart Meter systems is the information technology at the utility that integrates the Smart Meter networks with the utility applications,such as billing and CIS. This includes the Meter Data Management system.

It also is important for Smart Grid implementations that power line communication (PLC) technologies used within the home over a Home Area Network (HAN), arestandardized and compatible. The HAN allows HVAC systems and other household appliances to communicate with the smart meter, and from there to the utility.Currently there are several broadband or narrowband standards in place, or being developed, that are not yet compatible. In order to address this issue, the NationalInstitute for Standards and Technology (NIST) established the PAP15 group, which will study and recommend coexistence mechanisms with a focus on theharmonization of PLC standards for the HAN. The objective of the group is to ensure that all PLC technologies selected for the HAN will coexist as a minimum. Thetwo main broadband PLC technologies selected are the HomePlug AV / IEEE 1901 and ITU­T G.hn technologies.[87] Technical working groups within theseorganizations are working to develop appropriate coexistence mechanisms. The HomePlug Powerline Alliance has developed a new standard for smart grid HANcommunications called the HomePlug Green PHY specification. It is interoperable and coexistent with the widely deployed HomePlug AV technology and with thenew IEEE 1901 global standard and is based on Broadband OFDM technology. ITU­T commissioned in 2010 a new project called G.hnem, to address the homenetworking aspects of energy management, built upon existing Low Frequency Narrowband OFDM technologies.

Google.org's PowerMeter, until its demise in 2011, was able to use a smart meter for tracking electricity usage,[88] as can eMeter's Energy Engage as in, for example,the PowerCentsDC(TM) demand response program. Google PowerMeter was retired in September 2011.[89]

Security

One of the most problematic task to date is implementing security protocols that will protect these devices from malicious attacks and new exploits that are discoveredagainst them.

One proposed method of verifying the data provided by smart meters is though analyzing the data in real­time to detect anomalies. By identifying exploits as they arebeing leveraged by attackers, this Intrusion detection system (IDS) will mitigate the suppliers' risks of energy theft by consumers and denial­of­service attacks byhackers.[90]

Advanced metering infrastructure

Advanced Metering Infrastructure (AMI) are systems that measure, collect, and analyze energy usage, and communicate with metering devices such as electricitymeters, gas meters, heat meters, and water meters, either on request or on a schedule. These systems include hardware, software, communications, consumer energydisplays and controllers, customer associated systems, Meter Data Management (MDM) software, and supplier business systems.

Government agencies and utilities are turning toward advanced metering infrastructure (AMI) systems as part of larger “Smart Grid” initiatives. AMI extends currentadvanced meter reading (AMR) technology by providing two way meter communications, allowing commands to be sent toward the home for multiple purposes,including “time­of­use” pricing information, demand­response actions, or remote service disconnects. Wireless technologies are critical elements of the “NeighborhoodArea Network” (NAN), aggregating a mesh configuration of up to thousands of meters for back haul to the utility’s IT headquarters.

The network between the measurement devices and business systems allows collection and distribution of information to customers, suppliers, utility companies, andservice providers. This enables these businesses to participate in demand response services. Consumers can use information provided by the system to change theirnormal consumption patterns to take advantage of lower prices. Pricing can be used to curb growth of peak consumption. AMI differs from traditional automatic meterreading (AMR) in that it enables two­way communications with the meter. Systems only capable of meter readings do not qualify as AMI systems.[91]

Opposition and concerns

Some groups have expressed concerns regarding the cost, health, fire risk,[34] security and privacy effects of smart meters and the remote controllable "kill switch" thatis included with most of them. Many of these concerns regard wireless­only smart meters with no home energy monitoring or control or safety features. Metering­onlysolutions, while popular with utilities because they fit existing business models and have cheap up­front capital costs, often result in such "backlash". Often the entiresmart grid and smart building concept is discredited in part by confusion about the difference between home control and home area network technology and AMI. Theattorneys general of both Illinois and Connecticut have stated that they do not believe smart meters provide any financial benefit to consumers,[92] however, the cost ofthe installation of the new system will be absorbed by those customers.

Health and safety

Most health concerns about the meters arise from the pulsed radiofrequency (RF) radiation emitted by wireless smart meters.[93]

Members of the California State Assembly asked the California Council on Science and Technology (CCST) to study the issue of potential health impacts from smartmeters. The CCST report in April 2011 found no health impacts, based both on lack of scientific evidence of harmful effects from radio frequency (RF) waves and thatthe RF exposure of people in their homes to smart meters is likely to be minuscule compared to RF exposure to cell phones and microwave ovens.[94]

Issues surrounding smart meters causing fires have also been reported, particularly involving the manufacturer Sensus. In 2012. PECO Energy Company replaced theSensus meters it had deployed in the Philadelphia region after reports that a number of the units had overheated and caused fires. In July 2014, SaskPower, theprovince­run utility company of the Canadian province of Saskatchewan, halted its roll­out of Sensus meters after similar, isolated incidents were discovered. Shortlyafterward, Portland General Electric announced that it would replace 70,000 smart meters that had been deployed in the state of Oregon after similar reports. Thecompany noted that it had been aware of the issues since at least 2013, and that they were limited to certain models it had installed between 2010 and 2012.[95] On July30, 2014, after a total of 8 recent incidents involving the meters, SaskPower was ordered by the Government of Saskatchewan to immediately end its smart meterprogram, and remove the 105,000 smart meters it had installed.[96]

Privacy concerns

One technical reason for privacy concerns is that these meters send detailed information about how much electricity is being used each time. More frequent reportsprovide more detailed information. Infrequent reports may be of little benefit for the provider, as it doesn't allow as good demand management in the response ofchanging needs for electricity. On the other hand, very frequent reports would allow to the utility company to infer behavioral patterns for the occupants of a house,such as when the members of the household are probably asleep or absent. Current trends are to increase the frequency of reports. A solution which benefits both theprovider and the user's privacy, would be to adapt the interval dynamically.[97] In BC Canada the electric utility is government owned and as such must comply withprivacy laws that prevent the sale of data collected by smart meters, many parts of the world are serviced by private companies that are able to sell their data.[98] InAustralia debt collectors can make use of the data to know when people are at home.[99] Used as evidence in a court case in Austin, Texas, police agencies secretlycollected smart meter power usage data from thousands of residences to determine which ones were using more power than "typical" in order to find targets to pursuein marijuana growing operations.[100]

Smart meter power data usage patterns can reveal much more than how much power is being used. Research has been done which has demonstrated that smart meterssampling power levels at two­second intervals can reliably identify when different electrical devices are in use and even what channel or program is being viewed on atelevision based on the electrical consumption patterns of these devices and the electrical noises that they emit.[101][102][103][104][105][106][107][108]

Opt­out options

Reviews of smart meter programs, moratoriums, delays, and "opt­out" programs are some responses to the concerns of customers and government officials. In responseto residents who did not want a smart meter, in June 2012 a utility in Hawaii changed their smart meter program to "opt out".[109] The utility said that once the smartgrid installation project is nearing completion, KIUC may convert the deferral policy to an opt­out policy or program and may charge a fee to those members to coverthe costs of servicing the traditional meters. Any fee would require approval from the Hawaii Public Utilities Commission.

After receiving numerous complaints about health, hacking, and privacy concerns with the wireless digital devices, the Public Utility Commission of the US state ofMaine voted to allow customers to opt out of the meter change at a cost of $12 a month.[110] In Connecticut, another US state to consider smart metering recently,regulators declined a request by the state's largest utility, Connecticut Light & Power, to install 1.2 million of the devices, arguing that the potential savings in electricbills do not justify the cost. CL&P already offers its customers time­based rates. The state's Attorney General George Jepsen was quoted as saying the proposal wouldcause customers to spend upwards of $500 million on meters and get few benefits in return, a claim that Connecticut Light & Power disputed.[111]

Lack of savings in results

There are questions whether electricity is or should be primarily a "when you need it" service where the inconvenience/cost­benefit ratio of time shifting of loads ispoor. In the Chicago area Commonwealth Edison ran a test installing smart meters on 8,000 randomly selected households together with variable rates and rebates toencourage cutting back during peak usage.[112] In the Crain's Chicago Business article Smart grid test underwhelms. In pilot, few power down to save money. it wasreported that fewer than 9% exhibited any amount of peak usage reduction and that the overall amount of reduction was "statistically insignificant".[112] This was froma report by the Electric Power Research Institute, a utility industry think tank who conducted the study and prepared the report. Susan Satter, senior assistant Illinoisattorney general for public utilities said "It's devastating to their plan......The report shows zero statistically different result compared to business as usual." [112]

In the media

In 2013, Take Back Your Power, an independent Canadian documentary directed by Josh del Sol was released describing "dirty electricity" and the aforementionedissues with smart meters.[113] The film explores the various contexts of the health, legal, and economic concerns, and features narration from mayor of Peterborough,Ontario, Daryl Bennett, as well as American researcher De­Kun Li, journalist Blake Levitt,[114] and Dr. Sam Milham. It won a Leo Award for best feature­lengthdocumentary and the Annual Humanitarian Award from Indie Fest the following year.

See also

DASH7Distributed generationHome networkMeter­BusMeter data analyticsNet meteringNonintrusive load monitoringOpen Metering SystemOpen smart grid protocolPower line communicationSmart gridUniversal Metering InterfaceUtility submeteringVirtual power plantWavenis

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External links

UK Smart meter policy and information (http://www.smartme.co.uk/)Smart meter news, features and research papers (http://www.metering.com/)TIA Smart Utility Networks ­ U.S. Standardization Process (http://www.tiaonline.org/standards/committees/committee.cfm?comm=tr­51)Demand Response and Advanced Metering Coalition. Definitions. (http://www.dramcoalition.org/id19.htm)Advanced Metering Infrastructure (AMI), Department of Primary Industries, Victoria, Australia(http://www.dpi.vic.gov.au/dpi/dpinenergy.nsf/LinkView/4EC2E4EA42B821FCCA2572B10079A930A8BAF6E4E66C900FCA2572B20004C403)Further Reading ­ Smart Meters News & Information (http://www.smartmeters.com/)Smart Metering Projects Map ­ Google Maps (http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=115519311058367534348.0000011362ac6d7d21187&z=2)Mad about metered billing? They were in 1886, too (http://arstechnica.com/tech­policy/news/2011/08/mad­about­metered­billing­they­were­in­1886­too.ars)—Ars TechnicaSpectrum Analysis of a Smart Meter (http://sparqi.blogspot.com/2013/02/spectrum­analysis­of­smart­meter.html)

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