Compare the highest-rated home solar professionals in Londonderry, New Hampshire. All contractors are licensed, insured, and verified through our rigorous screening process.
Boston Solar is a leading residential solar installer in Massachusetts and New Hampshire, with a strong focus on the southern NH region. They are known for their comprehensive service, from initial consultation and system design to installation and long-term maintenance. They have a dedicated team for navigating NH-specific incentives and financing.
A employee-owned B-Corporation, ReVision Energy has a strong reputation throughout New England for its commitment to quality and sustainability. They are not just installers but energy consultants, offering robust system designs that often integrate heat pumps and battery storage. Their expertise in both grid-tied and off-grid solutions is a significant strength.
A locally owned and operated company based in New Hampshire, Granite State Solar prides itself on personalized service and deep knowledge of the state's climate and incentive programs. They handle the entire process in-house and are highly regarded for their customer service and post-installation support, including maintenance and repair.
** The home solar market in Londonderry, NH, is robust and competitive, characterized by high-quality, established regional installers. The market quality is generally high, as companies operating in New Hampshire must be certified by the state's Public Utilities Commission and carry appropriate licensing and insurance. Competition is strong among the top-tier providers, who differentiate themselves through service quality, manufacturer partnerships (e.g., SunPower, Panasonic, Tesla), and expertise with battery storage integration. Londonderry residents benefit from a combination of strong sunlight exposure for the Northeast and favorable state policies, including the **Electric Renewable Energy Credit (REC)** program. Typical pricing for a residential system ranges from **$15,000 to $40,000+** before incentives, heavily dependent on system size (typically 6kW to 12kW) and the inclusion of battery storage. The federal Investment Tax Credit (ITC) can reduce this cost by 30%. The presence of multiple reputable providers gives Londonderry homeowners excellent options for transitioning to solar energy.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Londonderry regulations and climate
Get answers to common questions about home solar services in Londonderry, New Hampshire.
For a typical 8-10 kW system in Londonderry, the gross cost before incentives ranges from $25,000 to $35,000. Crucially, you can reduce this by 30% with the federal Investment Tax Credit (ITC). New Hampshire also offers a specific property tax exemption, meaning your home's assessed value won't increase due to the solar installation, and you may benefit from net metering with Eversource, the local utility.
Solar panels are very effective year-round in New Hampshire. They generate electricity from daylight, not just direct sun, and cold temperatures actually improve panel efficiency. Snow typically slides off angled panels quickly, and any energy produced melts snow faster. Your system will produce less in December than in July, but annual production is calculated to offset your electricity use across all seasons.
Your installer will typically manage the entire permitting process. This includes obtaining an electrical permit from the Londonderry Building Department and ensuring compliance with the New Hampshire State Building and Fire Codes. If your home is in a historic district or has specific homeowner association (HOA) covenants, there may be additional design review, but New Hampshire law (RSA 672:1, III-b) restricts HOAs from outright prohibiting solar installations.
Prioritize local or regional installers with extensive experience in New Hampshire's climate and Eversource's interconnection process. Verify they are licensed, insured, and NABCEP-certified. Ask for references from recent Londonderry installations and compare detailed proposals that include production estimates specific to your roof's orientation and local weather patterns, not just generic national averages.
While technically possible, going completely off-grid in Londonderry is generally impractical and cost-prohibitive for most homeowners due to extended periods of low winter sunlight. The most common and cost-effective approach is a grid-tied system with a battery for backup power. This allows you to use the grid as a "virtual battery," earning credits via net metering while having security during Eversource power outages.