The base price, not including any site-specific modifiers or customer-selected upgrades, is $3.15 per watt for all participants. $3.15 per watt is 20% off the median statewide final installed price for residential solar systems in Massachusetts in 2018, which was $3.93 per watt according to the Mass Clean Energy Center Production Tracking System: www.masscec.com/solar-costs-performance.
In addition to the base price, there are customer options, such as mid-efficiency or high-efficiency panels, and site-specific cost modifiers as detailed below. This allows for both the best possible cost-per-watt for everyone, as well as value-added options as appropriate.
For a standard two-collector pre-heat solar hot water system, the net price is $2,000 to $3,000 after rebates and incentives for all participants. According to the Massachusetts Clean Energy Center, the base price is almost 20% lower than the current average statewide price.
In addition to this base solar hot water system, there are customer options available for additional collectors, a web-based monitoring system, etc. Incentives such as tax credits, cash rebates, and AECs sales income apply to both the base system and options.
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