PV SOLAR PROJECT OPPORTUNITIES For the Plymouth Public Schools Bob Patterson August 30, 2010

Plymouth Public Schools’ PV Solar Renewable Energy Initiative Green Community Act – MA Dept of Energy Resources – Funds PV Solar Projects for School Systems and Municipalities. Opportunity for - Photovoltaic (PV) Arrays for All Plymouth Schools, and Renewable Energy Kiosks in School Lobbies & Internet Access for Staff & Students to Renewable Energy Statistics

Green Communities Act New Massachusetts Legislation - Green Communities Act – SRECs Solar Renewable Energy Credits (SRECs) – 28.5 cents / kWhr Solar Renewable Energy Credits (SRECs) – for projects less than 2,000 kWe Solar Renewable Energy Credits (SRECs) – 400,000 kWe total limit on projects. SRECs are sold to PV Solar Developer to fund PV Solar Project. PV Solar Project Electricity – Credit Against School’s NStar Meter Basically – Full Credit of Electric Energy & Distribution Costs on School’s Bill. Solar Energy Industry Response to Green Community Act – Developers willing to finance projects to get contracts. Project implementation – months not years – lower risk to fossil/wind Power Purchase Agreements - Long Term (15 – 20 years) @ low stable pricing Falling costs for solar panels – from $5 - $6 / watt to $3 - $4 / watt.

How PV Solar Projects Impact PPS Energy Budget PV Solar System developer sells electricity to PPS at low fixed price. PV Solar Systems decreases NStar electricity purchase at each school by the amount of solar electricity produced. Solar electricity purchased reduces each school’s NStar electricity monthly bill. Difference between NStar price and PV Solar price generates savings – Example: NStar price @ $0.15 / kWhr less PV Solar price @ $0.05 / kWhr - times - the 100,000 kWhrs solar electricity produced = $10,000 annual cost savings. PPS Electricity budget saving - 11% to 15% of PPS’ $2.0 million electricity budget. - $210,000 to $300,000 per year for 20 years.

Major Benefits Zero Capital Commitment by Schools – Project Costs – Paid up-front by developer. Typical System Cost – PCIS - $4.5 million; Indian Brook - $1.5 million Total PV Solar Investment - $12 million to $14 million Low Cost Electricity – 3 to 5 Cts / kWhr vs 15 Cts / kWhr Saves $210,000 to $300,000 per year in electricity costs. Lifetime savings – (20 year contract) - $4 million to $6 million. Short Project Implementation Timetable – Commercial Operation in 4 to 6 months - not years as with wind energy. Long Term Stable Pricing – Price escalation as low as 1% to 2% per year. Plymouth Schools can contract for 20 years – 10 years w/ 10 year extension.

Why Plymouth Schools? Majority of schools have ideal flat roofs. Implementation & operation scheduled to allow roof replacements. Structural integrity of roofs will be assessed Significant project size – up to 3.0 MWe Immediate energy cost reduction - of $210,000 to $300,000 / Yr Funds set-aside to pay for removal & reinstallation of PV Solar panels during roof replacement out of energy cost savings.

Introduction W. Robert Patterson & Associates - Assists Plymouth Public Schools (PPS) with electricity, natural gas & fuel oil contracting. - Assists many communities & school systems with PV Solar project development. - Assists many communities & school systems with energy contract negotiations.

Plymouth School System Projects School PV System PV Solar 2009 Electric Cost Savings Capacity Production Usage @ 10 cts/kWhr (kWe) (kWhrs) (kWhrs) $ / Yr. Project A - South Middle 318 362,800 1,108,000 $36,200 South Elem. 388 442,377 695,700 $44,240 West Elem. 280 318,600 702,300 $31,800 Comm. Intermediate 968 1,102,000 2,439,600 $110,200 Project B - Federal Furnace 280 318,600 737,280 $31,800 Cold Spring Elem 63 72,100 105,180 $7,210 Indian Brook Elem 313 356,775 830,500 $35,677 Nathaniel Morton 86 98,102 141,102 $9,810 Manomet Elem 104 118,750 514,000 $11,875 Admin Building 33 37,700 166,565 $3,770 Hedge Elem 14 15,733 84,000 $1,573 Total – Projects A & B 2,847 3,242,000 7,524,227 $324,200 Other Project Opportunities - South HS Pre-School - Oak Street -

PPS Project Plans Project A – Project B – Other Opportunities – South Middle, South Elementary, West Elementary & Plymouth Community Intermediate School 1.95 MWe solar capacity – $8 million to $8.8 million Project B – Federal Furnace, Cold Spring, Indian Brook, Nathanial Morton, Manomet, Hedge & Admin. Building. 0.893 MWe solar capacity – $3.6 million to $4.0 million Other Opportunities – South High School, Oak Street & Pre-School 100 to 200 kWe solar capacity –

Important Contracting Documents Plymouth Public Schools – Request for Proposals Technical Proposal with Developer Qualifications. Payment Proposal with payment terms & conditions. PPS Power Purchase Agreement – Sets the Terms and Conditions of the PPS price of electricity. PPS Facility Lease Agreement – Stipulates access to and use of School Facility Roofs.

Typical Flat Roof Mounted PV Solar

Milestones Sept 15th - Preliminary Reviews & Designs Sept 30th - Request for Proposals Issued Oct 15th - Vendor/Developer Site Visits Oct 29th - Vendor/Developer Proposals Due Nov 15th - PPS Selects Vendor/Developer Nov 30th – Power Purchase & Facility Lease Contracts Ready for School Committee Approval

PPS Project Steps Note: Approval of School Committee to Proceed. Preliminary review and design of solar panel mounting system. Preliminary review of electrical interconnection and metering. Issue request for proposals to qualified PV System developers. Negotiate Power Purchase Agreements and Facility Leases. Note: School Committee Approval of Power Purchase Agreement & Facility Leases. Local building permits awarded & Interconnection Agreement signed. Financial closing, PPA and Leases signed, start of construction. Mechanical/Electrical construction completed – commercial operations start.