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Best 5 Solar Companies in Waltham, MA

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Written By Max Peterson | Last Updated: February 05, 2024

Waltham homeowners are privileged to live in ample sunlight, both to bask in and use for energy. With all the options to choose from in this urban jungle, you might feel overwhelmed searching for a great company. On this page, we'll highlight Waltham's leading solar companies and offer expert advice for your solar journey.

Best High-Efficiency System
4.8
  • Builds custom, high-efficiency solar systems suited to each home
  • Extensive coverage area throughout the country
  • Offers energy storage and EV charger add-ons
Best Solar Panel Leasing
4.4
  • Provides system monitoring
  • Offers diverse financing options for various budgets
  • Provides EV and solar battery solutions
Best Solar Panel Installation
4.4
  • Offers 7 panel brand options
  • 25-year workmanship warranty
  • Offers battery options

Top Waltham Solar Companies

Sunrun Fusion New England Logo

Sunrun Fusion New England

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4.7/5
Based on 16 customer reviews.

Services Offered

Solar Panel Upgrades Residential Panels

Highlights

  • Free quotes
  • Reliable customer support
  • Clear pricing policy
420 S Washington St Suite 6, North Attleborough, MA 508-372-8582 risolarexperts.com
EnergySage Logo

EnergySage

5/5
Based on 950 customer reviews.

Services Offered

Community Solar Projects Battery Storage Financing Assistance Residential Panels Tesla Powerwall

Highlights

  • Free quotes
  • Informative resources
  • Clear pricing policy
1 Center Plz, Boston, MA 888-838-4638 energysage.com
Boston Solar Logo

Boston Solar

5/5
Based on 11,000 customer reviews.

Services Offered

Residential Panels Financing Assistance Battery Storage Consultation Commercial Panels

Highlights

  • Clear pricing policy
  • Free quotes
  • Informative resources
12 Gill St #5650, Woburn, MA 617-648-5601 bostonsolar.us
Brightway Energy Logo

Brightway Energy

4.7/5
Based on 21 customer reviews.

Services Offered

Residential Panels Battery Storage Commercial Panels Financing Assistance

Highlights

  • Informative resources
165 Middlesex Ave, Somerville, MA 617-906-6655 brightwayenergy.com

More Local Solar Companies

Team Sunshine Construction, LLC.

User Reviews: 4.7/5 

24 Spice St
Boston, MA 02129

Kind Heart Solar Solutions

User Reviews: 4.7/5 

59 Bowker St
Boston, MA 02114

GOSO Technologies

User Reviews: 4.7/5 

75 State St Suite 100
Boston, MA 02109

Great Sky Solar

User Reviews: 4.6/5 

29 Mill St
Arlington, MA 02476

Sunbug Solar

User Reviews: 4.5/5 

2A Draper St
Woburn, MA 01801

Future Energy Solar

User Reviews: 4.6/5 

5 Short St
Melrose, MA 02176

NuWatt Energy

User Reviews: 4.2/5 

400 Tradecenter Dr Ste 5900
Woburn, MA 01801

New England Clean Energy

User Reviews: 4.4/5 

577 Main St Suite 430
Hudson, MA 01749

Venture Solar

User Reviews: 4.3/5 

2 Kane Industrial Dr
Hudson, MA 01749

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

Ranking Methodology

We reviewed dozens of Waltham solar installers, using the following criteria to determine the top-notch:

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Facts about Waltham
Average Max Temp: 56°F
Solar Payback Period: 9.8 years
Average Daily Sunlight: 52%
Homes Powered by Solar: 5,581
Average Annual Energy Bill: $1,601
Solar Power per Capita Percentile: 48.0%

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Benefits of Solar Energy

Solar energy provides several advantages that will enhance your home for years to come.

  • Lowered energy bills: With solar panels, you generate power without paying the tacked-on costs of grid-connected power. Going off-grid can eliminate your bills completely.
  • Reduced carbon footprint: The sun is the universe's most abundant clean energy source, meaning you can lower or beat your home's dependence on non-renewable sources.
  • Better energy independence: Solar systems with energy storage work through power outages and emergencies, and you won't have to depend on the electrical grid for your safety and well-being.

What Solar Incentives Are Available to Waltham Homeowners?

Governments and power companies often reward homeowners for embracing solar. Here are some of the rebates, tax credits or other programs you could qualify for.

Incentive Type: Property Tax Incentive

Website: in.gov

Incentive Amount:

Solar energy systems used for heating or cooling: out-of-pocket expenditures by the owner for the components and labor
Wind, hydroelectric, geothermal, solar thermal, solar PV, and other solar energy systems: the assessed value of the system

Incentive Type: Personal Tax Credit

Incentive Amount:

15%

Incentive Type: Sales Tax Incentive

Website: mass.gov

Incentive Amount:

100% exemption

Incentive Type: Industry Recruitment/Support

Incentive Amount:

100% deduction

Incentive Type: Rebate Program

Website: capelightcompact.org

Incentive Amount:

Appliances
Refrigerator and Freezer Recycling: $125
Electric Clothes Dryers: $50
Clothes Washer: $350
Dehumidifiers: $30
Room Air Purifiers: $40
Room Air Conditioner: $40

Heating & Cooling
Oil Heating System: Up to $800
Propane Heating Equipment: Up to $2,300
Oil Water Heater: Up to $400
Propane Water Heater: Up to $800
Heat Pump Water Heater: Up to $600
Central AC/Heat Pump: Up to $250/ton
Mini-Split Heat Pump: Up to $250/ton
Programmable Thermostats: Up to $25
WiFi Thermostat: Up to $100
Solar Domestic Hot Water heater: $500 - $1,500

Home Electronics
Advanced Power Strips: Varies

Home Insulation
Limited Time Enhanced Incentive: 75%
Year-Round Tenant Incentive: 100%
Enhanced Residential Program: 100%

Lighting
LEDs: Varies

Home Energy Assessment: Free

Incentive Type: Performance-Based Incentive

Website: masmartsolar.com

Incentive Amount:

(Base compensation rate + compensation rate adders - greenfield subtractor) * total kWh generated - value of energy generated

Incentive Type: Loan Program

Website: masssolarloan.com

Incentive Amount:

Maximum required: $35,000; maximum possible: $60,000

Incentive Type: Rebate Program

Website: masscec.com

Incentive Amount:

New GSHP Rebate: $2,000 per ton with adders to eligible applicants
Retrofit Existing GSHP Rebate: varies with installation costs

Incentive Type: Rebate Program

Website: masscec.com

Incentive Amount:

Standard Residential:
Pellet Stove: $1,000 - $1,750
Catalytic Woodstove: $750 - $1,250
Non-Catalytic Woodstove: $500-$1,250

Fully Automated Wood Stove: $1,500 - $1,750
Low-Income Residential:
Pellet Stove: $2,500 - $3,250
Catalytic Woodstove: $2,250 - $2,750
Non-Catalytic Woodstove: $2,000-$2,750
Fully Automated Wood Stove: $2,750 - $3,250

Incentive Type: PACE Financing

Incentive Amount:

Financing amount locally determined; 20-year financing term

Incentive Type: Solar Renewable Energy Credit Program

Website: mass.gov

Incentive Amount:

Varies, depending on market supply and demand

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

How To Choose the Best Solar Company in Waltham

The cost and effectiveness of solar panels often rely on the solar company that installed them. Make your choice based on the following key factors.

Licensing and Training

Massachusetts requires new solar PV systems in the Commonwealth to be installed by a licensed electrician and new solar water heaters to be installed by a construction supervisor. Solar companies can also obtain accreditations from trade groups and standards organizations. The most prestigious ones in the industry come from the North American Board of Certified Energy Practitioners. Most company websites will prominently display earned credentials, but you should also ask your estimator for more information.

Cost of Solar Panels in Waltham

Different solar panel types look and perform differently. Monocrystalline panels offer the best energy production but cost more than other options. Polycrystalline panels produce less power, but start at a more budget-friendly price point. Thin-film panels work well for small projects like RVs and sheds, but they're not ideal for larger installations due to their low performance.

If you need to charge an electric car or use your solar power in cloudy weather, you can pay extra for accessories. By choosing the right components, you can make your panel array more productive and user-friendly. Not all solar companies provide these optional components, so look for a contractor that installs them if it's a priority for you.

Most Waltham homeowners choose solar systems sized for five kilowatts (kW) of electrical capacity. These systems run about $20,300 to set up, considering both parts and installation. You can find more specific cost information in the table.

Solar Panel Cost Average Cost
Solar Monocrystalline $1,241
Solar Polycrystalline $968
Thin-Film $566
Solar Battery $794
Solar Home EV Charger $2,978

Financing Solar Energy in Waltham

There are numerous ways to pay for a new solar system, and the right one will lower your costs. A few of the most common options include power purchase agreements (PPAs), leases, cash payments, and loans. Though it requires a large up-front payment, cash is the most cost-effective choice because it doesn't accrue interest and qualifies you for incentives. Solar loans are the next best option. As with a home or auto loan, you'll pay a monthly rate towards system ownership, including interest. You can still apply for money-saving solar incentives, and depending on your lender, you could put as little as $0 down. Solar leases allow you to pay a monthly fee to rent your panels, while a PPA lets you pay a variable rate based on only the energy you use. We generally don't recommend these options since you will not have ownership of your system and are disqualified from solar incentives, but they might be appropriate in particular circumstances. We suggest working with a company that offers multiple financing options. Ask each agent about what's available, and secure more than one estimate for the best odds of staying within your spending limits.

The table below lists the average payback periods for different capacities of solar systems in Waltham.

A 26% federal tax credit applies to new residential solar equipment purchased through 2032. Further incentives may be available through local governments, usually in the form of rebates and special financing programs.

Solar System Capacity Estimated Payback period
1 kW 2.0 years
2 kW 3.9 years
5 kW 9.8 years
10 kW 19.6 years

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Frequently Asked Questions About Solar in Waltham

How much money could I save by going solar in Waltham?

On average, Waltham homeowners pay approximately $1,601 per year on electric bills. Once you pay off your solar array, you could reduce your costs by $1,198.51 per kilowatt you produce.

How prevalent is solar energy in Waltham?

Yes, solar energy is gaining popularity in Waltham. Some homes already benefit from solar power on-site or through utility grids, and they're fortified by a state solar economy with 10400 jobs and counting.

Will a solar PV system increase my Waltham home value?

Yes, solar energy systems will raise your property value. According to the National Renewable Energy Laboratory, for every dollar you save on energy bills, your home value increases by $20. So, if your panels save you $600 per year on energy costs, your property could appreciate $12,000.

How can I evaluate my site's solar viability?

To determine your home's solar readiness, there's no substitute for a comprehensive estimate from a local solar installer. However, you can use the PVWatts tool for a simple solar viability estimate based on public data, including tree cover, panel efficiency, system size, and local weather and topography.

What size should my new Waltham solar system be?

A typical Waltham solar home utilizes a 4.5-kW panel array, but you might need a smaller system if your energy needs are higher. Solar experts will evaluate your property's power usage and roof shading to determine the proper system for you.

How long does it take to pay back a solar loan in Waltham?

Most Waltham homeowners pay back a solar loan in 11.9 years. You can shorten the payback period by paying off extra loan principal each month.

What is "net metering," and how does it work?

Most states and utilities run net metering programs, and some mandate homeowners to join. Once you sign up, you can obtain a check or bill credit for any surplus electricity you produce and send to the grid. Generally, power companies compensate solar homeowners at a wholesale or "avoided-cost" rate.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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