The Net-Zero Energy HomePowering Canadian Homes

Through Conservation, Supply & InnovationJanuary, 2005

Net-Zero Energy Home

Coalition Membership

Canadian Energy Efficiency Alliance

Milton HydroSpheral Solar Power (a division ATS Automation Tooling Systems Inc.)

Climate Change Central

Alberta Research Council

Xantrex Technology Inc.

DuPont Canada Inc.

Thomasfield Homes

Earth Energy Society of Canada

Canadian Solar Industries Association

EnerQuality Corporation

AdvisorsPollution Probe

Concordia University--Dr. Andreas Athienitis

Howell-Mayhew Engineering Inc.

Net-Zero Energy Home

Definition

A net-zero energy home at a minimum supplies to the grid an annual output of electricity that is equal to the amount of plug load power purchased from the grid. In many cases the entire energy consumption (heating, cooling and electrical) of a net-zero energy home can be provided by renewable energy sources.

Net-Zero Energy Home

Objectives

Linking energy efficiency/conservation with renewable energy development

Expanding the market for localized/onsite green power generation

Help resolve the issues of cost effectiveness

May 1,2002 to Nov1,2003.

Blue = Milton Hydro's total load curve

Grey = aggregate load profile of all customers-- commercial /industrial--with average monthly peak demands > 50 kW

Red = all consumers (65 to 70% residential) with demands < 50 kW.

Blue = Red + Grey (adjusted for distribution losses).

Reinventing the wheel? No!Unites States—ZEH program

Japan---50% buydown—influenced NZEHs

Net-Zero Energy Home

A natural progression in response to concerns over energy price security, reliability and sustainability

Net-Zero Energy Home – Feasibility

•The technology exists today—much of it in the province

•Builds on the work of existing programs such as R-2000, EnviroHome, Energuide for Houses

•Requires a partnership of governments, industry, and communities

Net-Zero Energy Home --Technologies

Net-Zero Technology MENU:

• R2000 + building efficiency standards• Energy Star Appliances• Photovoltaic Roof• Solar Thermal• Earth Energy Systems• Heat recovery technologies• Solar Hot Water• and others

Menu of options allow the consumer flexibility in designing their Net-Zero Energy Home

Excess energy capacity and storage through the grid Net-metering allowing customer to reduce monthly costs

in half Time of use metering allows consumers to balance

energy load.

Net-Zero Energy Home – Economics

The Technology Learning/Volume Cost Curve

Average yearly cost decline of 5% per year with increased market size, accelerates competitiveness and removes need for government support

Declining installed costs for new homes in Canada PV $8.00--$5.50--$2.50/watt Solar Thermal $4K--$2K Earth Energy $20K--15K

Typically a 10-15 year cycle before costs and market begin reaching maturity

Net-Zero Energy Home –German PV Experience

Net-Zero Energy Home – German Strategy

A similar strategy for NZE technologies can lead to significant results and benefits in Ontario

Net-Zero Home Energy Plan—Benefits to Ontario

EnvironmentalTotal GHG reductions 144 Megatons (through to 2050)

New power generation 6100 MW (through to 2050)

Conserved energy 178 billion kWhrs (through to 2050)

Sustainable urban development Green communities

Public education/awareness Empowering consumers

Displacing fossil generation Cleaner air, reduced smog

Economic DevelopmentNew manufacturing base Upwards of 25 new PV factories

Direct PV and solar thermal related jobs 4100

New Jobs from all related sectors 88,000

Reliable and secure energy supply De-centralized power

Net-Zero Home Energy Plan—Next Step

What is Required of Ontario in the Short-Term

Support a minimum 300 Demonstration Homeso Size will help with exposure to markets, learning curve, the

platform for larger scale grid-tied and localized green power systems

Provincial commitment required---$6.0 Million over 3 yearso Potential for co-funding with the federal governmento Possible DSM funds with support of power companies

Research and market analysis of projects

Net-Zero Home Energy Home—Government

FederalCMHC, Industry Canada, NRCan, leading supportersInterest in supporting pilots

ProvincialOntario Ministry of energy is supportive and poised to assistOther provinces expressing interest: BC, Alberta, Quebec

and PEI

MunicipalityLooking for first demonstration locationExploring how municipalities can lend supportUtilities—Milton Hydro

Net-Zero Energy Home – Defining Success

•Addressing the incremental cost of 12%--15%

•Investment by consumer with a reasonable payback

•Government assistance with phase out schedule so that technologies stand on their own tax abatement incentives, green mortgaging

•Provide flexibility so that no one technology or solution is singled out. A diversified plan that promotes the

integration of varied technologies.

•Expanding awareness and understanding