2015 Cost Of Solar Index For Massachusetts Released By Solar To The People

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A new study providing data on the cost of home solar in Massachusetts was recently released by Solar to the People — the purpose of the release being to spur greater price transparency in the state.

The new study offers data on the costs paid by homeowners for solar installations in the state for dates between 2008 and May 2015, with figures for both full installations and also for cost per kW (kilowatt) of installed installed.

Costs both before and after state + federal incentives + rebates are provided. The study sourced much of its data from the Massachusetts Clean Energy Center’s Commonwealth Solar II Rebate Program database.

Here are some of the key findings of the study:

  • The average price of installing residential solar in Massachusetts in the first part of 2015 was $20,180, after rebates and incentives.
  • This price equates to $2,776 / kW (kilowatt) installed, after incentives and rebates.
  • Rebates and incentives reduced the cost of home solar by 38%
  • One of the main Massachusetts rebates (Commonwealth Solar II) is no longer available. This rebate reduced the price of solar by an average of 6.8% in the first part of 2015.
  • The average cost per kW of solar in Massachusetts before incentives and rebates has fallen 47% since 2008.
  • The average cost per kW of solar in Massachusetts after incentives and rebates has fallen 13% since 2008.

Average cost of solar per kW (kilowatt) across Massachusetts metro areas for the first part of 2015 were:

  1. Cape Cod – $3,191 / kW
  2. The Berkshires – $2,849 / kW
  3. Boston Area – $2,734 / kW
  4. Springfield / Pioneer Valley – $2,710 / kW
  5. Worcester County – $2,656 / kW
  6. Franklin County – $2,652 / kW

This post originally appeared on CleanTechnica.com

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John Weaver
Solar Power Plant Project Developer at Commercial Solar Guy

John Fitzgerald Weaver is a solar consultant – aka The Commercial Solar Guy. As a project developer and installer, he’s sold and managed 50+ solar projects worth more than $10 million, ranging from 5kW to 1500kW. He’s been involved in many aspects of the solar supply chain – as a company founder, developer, project manager, manufacturer, permit runner, salesman, contractor and financier, climbs mountains, played football, enjoys an IPA or scotch, needs to get away, and really loves this strange connection between politics, energy, finance, environment, etc in the energy world, and likes run on sentences.


Current and occasional stock positions that I have written about are ASYS, TSLA, CAFD and TAN – plus Bitcoin and Etherium.


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