There are many things you can do.
1. Complete a Sustainable Wellesley Checklist (Whether you live in Wellesley or not!)
2. Get a free home energy assessment ☀ Call 888-772-4242 in Wellesley. ☀ Visit MassSave.org (all towns).
3. Buy Green/Renewable Electricity ☀ Visit WellesleyRenewableEnergy.com or call 781-235-7600 in Wellesley. ☀ Visit MassEnergy.org (NSTAR and National Grid customers).
Want to do More? Click on these links:
- Solar is less expensive than retail electricity before incentives in many cases today!
Average cost of system installed in MA over last year = $3.52/W (utility, commercial and residential), which results in an approx. levelized cost of energy of 12.4 cents/kWh over the 25 year warranted life of the system.
- The solar industry employs over 119,000 people – more than the coal industry, and is one of the fastest growing industries in the US.
- $22 of incentives go to the fossil fuel industries for every $1 of subsidies that go to renewable energy.
- Over 70% of the net additions to the world’s electric grids were renewables last year.
- The costs for solar panels have fallen by over 60% in the last year and a half.
- Residential systems in MA typically pay back in 6 years.
Typical 6kW system saves 5 tons of CO2 annually – this is about 18% of the carbon footprint of a typical family in Wellesley (assumes 4 family members, nat. gas heating, 2 cars with 240 miles/mo. and 20.4 mpg, recycles most waste)
- Removing 1 car from the road
- Planting 1 acre of pine or fir forest
- Recycling 1.8 tons of waste instead of sending it to a landfill
Cost of Solar
Avg. residential system size in MA: 6kW (would supply about 2/3 of the average Wellesley home’s electric usage)
Cost for avg. residential system in MA last quarter: $4.41/W, or $26,500
Commonwealth Solar II Rebate: ($2,000)
Federal 30% Investment Tax Credit: ($7,950)
MA Tax Credit: ($1,000)
Net System Cost: $15,500
Annual Electricity Savings @ 12.6₵/kWh: $850
($29,000 over 25 year life of system, assuming 3% annual electric rate growth)
Annual Solar Renewable Energy Certificate (SREC) Income: $1,900 – $3,700 ($19,000 – $30,000 over 10 years)
15% return on investment, about a 6 year payback
Power Purchase Agreement (PPA) – zero cost initial investment, plus buying electricity at lower cost from solar array owner
Solar Lease – zero to minimal cost initial investment, savings on electricity, plus lease payments to solar array owner
How to Start
- See if you have a roof face that faces mostly south
- Check for shading (if no or limited shading at noon in mid-winter you’re probably in good shape)
- Go to www.masscec.com (Massachusetts Clean Energy Center) and search “Finding a Solar Installer” or contact me, Alex Keally – firstname.lastname@example.org, 617-217-1502.
 “SRECs Minted and MWh reported to the PTS,” Updated January 15, 2013, filtered for systems with Commercial Operation Date in 2012 or 2013, Massachusetts Department of Energy Resources, http://www.mass.gov/eea/energy-utilities-clean-tech/renewable-energy/solar/rps-solar-carve-out/current-status-of-the-rps-solar-carve-out-program.html
 Bill Clinton, Keynote speech at Solar Power International, September 12, 2012, Orlando, FL
 GTM Research, “US Solar Market Insight – Q3 2012”
 Environmental Benefits from US Environmental Protection Agency, Greenhouse Gas Equivalency Calculator, http://www.epa.gov/cleanenergy/energy-resources/calculator.html
 Massachusetts Clean Energy Center, “Commonwealth Solar Summary Report,” Block 12 – Rebate Awarded