Solar Installers in Waltham, MA
Compare solar companies in Waltham. 3.9 peak sun hours · $3.09/W avg cost · 64,015 residents.
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Waltham, Massachusetts is a good location for residential solar energy. With 3.9 peak sun hours per day and a population of 64,015, thousands of Waltham homeowners have already made the switch to solar — and for good reason. The combination of 30.48¢/kWh electricity rates and generous federal incentives makes solar a smart financial decision.
A typical 8kW solar system in Waltham produces approximately 11,388 kWh per year. At the current average electricity rate of 30.48 cents per kWh, that translates to annual savings of approximately $3,471. Over the 25+ year lifespan of your solar panels, total estimated savings reach $73,923.
The cost of going solar in Waltham averages $3.09 per watt before incentives. For a standard 8kW residential system, that's $24,720 before the 30% federal Investment Tax Credit. After the ITC, your net cost drops to approximately $17,304. Massachusetts also offers a state tax credit of 15% up to $1,000, further reducing your out-of-pocket expense.
Waltham benefits from Massachusetts's full retail rate net metering policy, which means any excess solar energy your system sends to the grid earns you credits at the full retail electricity rate. This maximizes the value of your solar investment.
Solar panels also increase your home value. According to Zillow research, homes with solar sell for approximately 4.1% more than comparable homes without solar. In Waltham, that premium can amount to thousands of dollars in added equity — all while you enjoy lower electricity bills every month. With 6-year average payback and 25+ years of panel life, going solar in Waltham is one of the smartest home investments you can make.
Waltham Solar Cost Estimate
| System Size | Before ITC | After 30% ITC | Annual Production |
|---|---|---|---|
| 5 kW | $15,450 | $10,815 | 7,118 kWh |
| 8 kW | $24,720 | $17,304 | 11,388 kWh |
| 12 kW | $37,080 | $25,956 | 17,082 kWh |
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Waltham, MA Solar FAQ
How much do solar panels cost in Waltham, MA?▼
Solar panels in Waltham cost an average of $3.09 per watt before incentives. A typical 8kW system runs $24,720 before the 30% federal tax credit, bringing the net cost to approximately $17,304. Prices vary by installer, equipment, and roof complexity.
How much electricity will solar panels produce in Waltham?▼
Waltham receives 3.9 peak sun hours per day on average. An 8kW solar system here produces approximately 11,388 kWh per year, which is typically enough to offset 80-100% of an average household's annual electricity usage and save approximately $3,471 per year.
What solar incentives are available in Waltham, MA?▼
Waltham residents can claim the 30% federal solar Investment Tax Credit (ITC), worth $7,416 on a typical system. Massachusetts also offers a state tax credit of 15% up to $1,000. Solar installations are exempt from property tax increases in Massachusetts. Solar equipment is sales tax exempt.
How long is the solar payback period in Waltham?▼
The average solar payback period in Waltham, MA is approximately 6 years. After payback, you enjoy free electricity for the remaining 15+ years of your warranty. Total 25-year savings are estimated at $73,923.
Is Waltham a good city for solar energy?▼
Waltham has 3.9 peak sun hours per day. While below the sunniest regions, solar is still worthwhile here Combined with 30.48¢/kWh electricity rates and available incentives, most homeowners see strong returns on their solar investment.
How do I find the best solar installer in Waltham?▼
We recommend getting at least 3 quotes from licensed, insured solar installers. Compare total cost, equipment brands, warranties, and financing options. Look for installers with NABCEP certification and strong reviews. Use our free comparison tool to get matched with pre-screened Waltham solar companies.
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