Plymouth Public Schools – Solar Projects How these projects fit in with the PPS overall energy strategy Roof-Tops – 2 MWs Purchase Electricity Offsite Solar – 6 MWs Purchase Electricity Credits

PPS Energy Strategy - Details Our energy strategy is divided into three components: 1. Conservation- This was the starting point for the districts energy program, conservation efforts involving all district personnel are the anchor of our program. Conservation efforts have helped to achieve a substantial amount of the savings we have seen to date. 2. Efficiency Initiatives- We have completed and continue to move ahead with efficiency projects including lighting upgrades, mechanical upgrades, and building envelope improvements, as well as the larger capital projects that are significantly driving down our overall consumption. 1. Alternative Energy Options 1. - proposed projects: roof-top onsite and offsite solar farm projects. The direction we are taking; conservation→efficiency→alternative energy is the energy industry recognized standard path for large facility energy programs.

Energy Efficiency Activities – Energy Efficiency Projects: LED installations Controls upgrades De-stratification fans Hot water heater replacements

Energy Efficiency Projects - Convert 4 Schools to Non- Electric/Lower Cost Capital Projects: PCIS- complete West- complete Indian Brook- project underway targeted for completion summer 2012 Federal Furnace- not yet approved but anticipated, existing system at the end of its life cycle.

PV Solar Energy Projects – Photo Voltaic Solar Electricity Generation - Municipalities allowed to purchase 10 MW of Electricity credits. Net-Metering Credits Six Schools – Roof-Top PC Solar Systems Two (2) MWe of Capacity – 2,300,000 kWhr / yr Saves $0.8 / kWhr or $184,000 / year Offsite PV Solar Farm Project (s) Six (6) MWe of Capacity – 9,390,000 kWhr / yr Saves $0.6 / kWhr or $563,400 / year

Plymouth Public Schools Electricity Cost Profile to be built into the FY13 energy projections DescriptionDollars FY 12 Electricity Budget (11,250,000 kWhr) $2,000,000 New North High School (+1,440,000 kWhr) Cost Reduction Initiatives Electricity Reduction/Conversions – Elec. → Gas (887,000 KWhr) Electricity Energy Efficiency program; lighting and mechanical improvements (400,000 kWhr) Electricity Purchase Initiative ( kWhr supply through FY12 into FY13) Roof-Top PV Solar Systems (2,300,000 kWhr) Stand-Alone 6MW PV Solar Net-Meter Credits (9,390,000 kWhr) Total FY 2013 Electricity Costs 30% - 45%