Green Energy Upgrades

8/14/2019 Green Energy Upgrades

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Green Energy Upgrades7-9pm Feb 25, 2009

www.grotonlocal.org


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Green Energy Upgrades:Improvements to your heating systems based on

Systems Design and Planning.

Why do them?

1. Save the Planet

2. Save Money

.Intermission

Whats involved and How are they done?

3. Solar, Geothermal Heat Pumps, Wood Pellets

4. Collaborative Project Planning

Workshop for Groton households.


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Save the Planet

NOW!

Its much later than we think. Atmospheric CO2 = 387 PPM Recent activity indicates scientists underestimated impacts.

Permafrost emissions, glacial melting, deforestation, changingprecipitation patterns

HOW?

Conserve in all areas that cause Green House Gases (GHG).

Influence the process with votes and purchases.

Create a Plan for your home then Act on it. Replace Addictive and Harmful fossil fuels.

Invest soon so you can make money in the long run.

Must have 80% cuts in Global CO2 emissions before 2050.


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150 yrs of Fossil Fuel usePre-Industrial

Glacial

350 PPM target

387 PPM in 2008

1. Save the Planet ( CO2 PPM )


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Climate Change, CO2 PPM

1. Save the Planet (150+ years of Fossil Fuels)


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1. Save the Planet (7-3=4)


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5 Stages of Climate Grief

1. DENIAL. We do not believe the science or thathumans are the cause of global warming.

3. ANGER We refuse to consider any substantialchanges to our life style.

5. BARGAINING We rationalize that warming wont be allthat bad and might even make life more comfortable.

7. DEPRESSION We consider the risks, impacts and tasksahead and the need for international cooperation to solve theproblem and conclude that success is impossible.

9. ACCEPTANCE We acknowledge the scientific factscalmly, and explore solutions to drive down greenhouse gasemissions dramatically, and commit to use non-carbonintensive energy sources.


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Denial Anger Bargaining Depression Acceptance

Question: Which house do you live in?


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Climate Change, CO2 PPM

Major Global Initiatives Developed Countries need to lead the way.

Huge investment in new technologies and programs.

Replace Coal.

Global Carbon Cap-N-Trade and/or Taxes.

U.S. must catch up and assume a leadership role.

Green Energy Upgrades Building Upgrades in the North must cut way back on Oil and

Gas. Utilize currently available low-carbon products and services.

Re-educate, reduce, reuse, recycle, re-localize!

Save the Planet: PARALLEL EFFORTS NEEDED NOW


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Major Global Initiatives needed to solve global

energy and environmental challenges.

Fossil Fuels

conventional oil & gas not enough resources?

coal, tar sands, oil shale not enough atmosphere?

Sustainable Fuels

biomass not enough land?

wind & hydro not enough good sites?

photovoltaics too expensive?

nuclear fission too unforgiving? not enough Uranium?

nuclear fusion too difficult?

hydrogen energy to make it?, means to store it?

end-use efficiency not enough smart end users?


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Critical Timing of Upgrades and Major Global Initiatives

Upgrades

Major Global Initiatives

350


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Hot, Flat and Crowded, Tom Friedman

The Weather Makers, Tim Flannery

Deep Economy, Bill McKibben

Boiling Point, Ross Gelbspan

Plan B 3.0, Lester Brown

An Inconvenient Truth, Al Gore

Earth: The Sequel, Fred Krupp / Miriam Horn

Randys reading list on Climate Change

and Sustainable Strategies


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Garbage

0%Electricity

20%

Natural gas

0%

Propane

0%

Heating oil47%

Car 1 distance

14%

Car 2 distance

9%

Air miles10%

Dont ignore

the costliest

and biggestemitter

4. Collaborative Project PlanningHousehold Energy and Emissions.


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.

Avg

10%

Oil Price Volatility and Trend Upward


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2008-2009 Home Heating Estimates

(100M BTU house in Groton, MA)

$0

$500

$1,000

$1,500$2,000

$2,500

$3,000

$3,500

$4,000

$4,500

OilHydronic

OilStea

m

ElectResistance

Propane

NaturalG

as

HeatPumpAir2Air

WoodPellets

Geo-ClosedLoop

Geo-OpenLoop

Cost Savings compared to Oil

Saving Money: Comparing First Year Fuel Costs


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Internal Rate of Return (%)vs Payback (Years)

Net Savings

withescalating

Fuel prices

Years after Initial Cost

0

+

-

Saving Money: 2 ways to evaluate cost benefits


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Intermission


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Solar Thermal: Vertical Air Collectors on South Wall



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2. Efficiency, IRR and BTU/$ . Save Money

SolarPathfinder-South?-Obstructions?

-Software calculates net insolation.



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Initial estimate of monthly Solar contribution.

Insolation (50% eff, with Albedo, 90 degree slope)vs Total House Load

0

2,000,000

4,000,000

6,000,000

8,000,00010,000,000

12,000,000

14,000,000

Sep Oct Nov Dec Jan Feb Mar Apr May

BTU Insolation

BTU Load

2. Efficiency, IRR and BTU/$ . Save Money3. Solar, Geothermal Heat Pumps, Wood Pellets


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10% Bleed to Dry Well

90% Returns to Well

Geothermal Open Loop Design (Standing Column Well)

Great solution for homes that need heating, AC and domestic hot water



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Heating Flow Chart

Earth Coupling

Ground Water

Heat Pump

Refrigerant

Distribution

Hydronic Fluid/Air

Expanded/Compressed

Gas/liquid cycling

45

3895/65

115/80

13525



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Dual Fuel Design

using

Oil as back-up.

Acc.Tank

34,000 BTU/hr

Fan coil

To Ducts

Heat

Pump

3-way valve

80000 BTUBoiler

Standing

Column Well

20gpm ,

pump @ 300

26,000 BTU / hr3 zones / baseboards

geo oil


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On-line Wood pellet boiler cost estimator.

2. Efficiency, IRR and BTU/$ . Save Money3. Solar, Geothermal Heat Pumps, Wood Pellets


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Quick Fixes help but they are not enough. Weather-strip and caulk windows, doors and outlets.

Tune-Up and Clean the Heating system(s).

Add insulation.

Improve Window Coverings

Reduce heat to unused spaces

Modest Life style changes

Bottom line: $500 to $5000

Can reduce Heating Bills by 20%

Payback (0 - 5 yrs).

Limited planning. Assumes continued primary use of oil or gas.

Piecemeal approach. Low hanging fruit.

4. Collaborative Project Planning(Comparing Quick Fixes to Green Energy Upgrades)


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Green Energy UpgradesAvoid 20 more years

Of Fossil Fuels

Save $50,000 to $200,000

Bottom line: $5000 to $50,000

Can reduce Energy Bills by 50% to 70%

Involves sustainable mix of fuels and much more efficient systems.

Looks at the overall system (enclosure, heating system, dhw, AC, health)

Require more planning and investment.

Payback < 10 yrs. IRR > 10% over life of systems.

4. Collaborative Project Planning(Comparing Quick Fixes to Green Energy Upgrades)


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Step #1.Homeowner Review and Preparation

Collect utility bills for oil, gas and electricity.

Find or create plot plan. (property lines, house location andwetlands).

Step #2. Site Survey, Analysis and Report

Perform Enclosure, Site, Heating Systems and Solar Surveys.

Provide preliminary estimates and assess feasibility ofsustainable systems (solar, geothermal, conservation and wood

pellets for space heating and supplemental domestic hot water). Costs $150 for Groton Local and NRWA members.

Can be used as a basis for obtaining competitive, budgetaryquotes. Refundable in Step #3.


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Step #3. Project Design and Cost Estimates Define space, power, access and site work for Heating, Cooling

and DHW with or w/o Solar thermal.

Estimate Initial costs, paybacks, IRR, Incentives and Rebates

associated with 50% or greater reduction in operating costs andemissions.

Draft Design/Build contract for best alternative.

Costs $500 for Groton Local and NRWA members.

Can be used as a basis for obtaining competitive, firm estimates.Refundable in Step #4.

Step #4. Contract Award for Installation and Support


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Workshop

gallons 925

yearly load 100,122,000

Fuel Yrly Fuel Costs unit cost Eff %

Oil Hydronic $2,035.00 $2.200 82%

Oil Steam $3,337.40 $2.200 50%

Elect Resistance $3,852.13 $0.130 99%

Propane $3,692.71 $2.900 86%Natural Gas $2,614.30 $2.350 90%

Heat Pump Air2Air $2,325.37 $0.130 200%

Wood Pellets $2,098.14 $0.143 85%

Geo - Closed Loop $1,367.87 $0.130 340%

Geo - Open Loop $949.13 $0.130 490%

Variable

Item Quantity Units CO2 lbsper year

Garbage 32 gal/week 3,328

Electricity 7,500 kWh/year 10,275

Natural gas 0 therms/year 0

Propane 0 gal/year 0

Heating oil 550 gal/year 12,315

Car 1 distance 10,000 miles/year 6,667

Car 2 distance 5,000 miles/year 4,000Air miles 0 miles/year 0

Occupants 2 people

Total 36,584

Spreadsheets to calculate your

Carbon Footprint Energy Cost Savings

Green Energy Upgrades

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