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Low Flow Showerheads Saving Water – Saving Electricity – Reducing GHG’s People – Planet – Profit

Low Flow Showerheads Saving Water – Saving Electricity – Reducing GHG’s People – Planet – Profit. Program Design. Technology Diffusion. To accelerate the market penetration of low flow showerheads to 10% of the market in lieu of non-existent standards. Carbon Finance.

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Low Flow Showerheads Saving Water – Saving Electricity – Reducing GHG’s People – Planet – Profit

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  1. Low Flow Showerheads Saving Water – Saving Electricity – Reducing GHG’s People – Planet – Profit

  2. Program Design Technology Diffusion To accelerate the market penetration of low flow showerheads to 10% of the market in lieu of non-existent standards. Carbon Finance To finance the installation of low flow showerheads through the monetization of electricity savings or carbon emission reductions – environmental markets and finance. 2

  3. Program Assumptions • Market Potential – 10,000,000 homes • Target Market Acquisition – 10% or replace 1,000,000 homes with low flow showerheads • Useful life of the measure – 5 years • Cost - $100 in total costs to install low flow showerheads per home ($100,000,000 total cost) • Benefits • People – energy savings ($’s) • Planet – GHG emissions, water, and energy • Profits – ? 3

  4. Water Savings Household Benefits Source: United Illum report Water savings of between 19.0 to 66.5 billion gallons at a cost of $0.015 to $0.05 per gallon saved! References Water Savings = ((Actual showerhead flow – Low flow showerhead flow) * usage per household * 365 days)/number of showers Total water savings = water savings per household * useful life of the measure 4

  5. Energy Savings Household Benefits – Electric Water Heater Electricity savings of between 2.6 to 9.0 billion kWh at a cost of $0.0111 to $0.0385 per kWh saved! References Energy Savings = (Delta temperature * Pounds per gallon * Water savings)/10^6 Electricity Saved = (Mbtu saved per year * 293kWh/Btu)/Water energy factor Natural Gas Saved = Mbtu saved per year/Water energy factor No. 2 Oil Saved = (Mbtu saved per year/Water energy factor)/No.2 Oil Btu/G Source: United Illum report p195 5

  6. People – Planet Benefits to Homeowner and Society • Water Usage Reduced – 19.0 to 66.5 billion gallons –water • Energy Avoided – reduction of 2.6 to 9.0 million MWh • Electricity Savings – $405 to $1.4 billion saved in electricity costs or $405 to $1,400 per household • CO2 Emissions Reduced – 1,800 to 6,250 million pounds of CO2 or 820,000 to 2,800,000 MTCO2 – global warming Source: e-grid data from EPA References Assumes 2% inflation, $0.15/kWh electricity price, for 5 years 692 pounds of CO2/MWh 6

  7. Things to Remember • Be transparent with your assumptions and calculations • Use reliable and trusted data sources • Try to determine both an effectiveness benefit (i.e. water reductions) and an efficiency benefit (i.e. $ cost per unit of water reduced) • Use equivalents where feasible (i.e. acres of trees, number of cars off the road, barrels of oil, etc.) 7

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