Top 10 Best Solar Energy Companies in Hertsmere

Solar panels are now a common sight on rooftops across Hertsmere, from new-build estates in Borehamwood to period homes in Bushey Heath and spacious detached properties in Radlett. Falling panel prices, rising electricity bills and the Smart Export Guarantee, which pays households for surplus power sent to the grid, have made solar a practical investment rather than a niche experiment. Add home batteries and smart tariffs, and a well-designed system can cover a large share of a household's annual electricity needs.

Is Hertsmere a Good Location for Solar?

South East England enjoys some of the best solar irradiance in the UK, and Hertfordshire benefits from that. Many Hertsmere homes have south, east or west-facing roofs that suit modern high-efficiency panels. Commercial buildings on Cranborne Industrial Estate, Centennial Park and the business parks along Elstree Way also offer large flat or low-pitched roofs well suited to commercial arrays. The key local consideration is planning: properties in conservation areas or listed buildings may need consent, so choosing an experienced installer matters.

How We Chose These Solar Companies

We looked at companies that install in or supply equipment widely used across Hertfordshire. Our criteria included installation quality, MCS certification, product range, battery integration, warranties, customer feedback and aftercare. This is an editorial guide designed to help you create a shortlist.

The Top 10 Solar Energy Companies Serving Hertsmere

1. Octopus Energy Solar

Octopus Energy offers solar panel and battery installations alongside smart tariffs such as those designed to pay attractive rates for exported power. The advantage is a single relationship covering hardware, installation and energy supply, with app-based monitoring that helps households see exactly how much solar they generate and use.

2. E.ON Next Solar

E.ON has a long history in UK solar installation and offers systems with batteries and optional EV chargers. Its scale means standardised designs, clear warranties and financing options. Hertsmere homeowners who prefer a large, established brand often include E.ON in their comparison.

3. British Gas Solar

British Gas, part of Centrica, provides solar panel installations as part of a wider home energy offer that also includes boiler care and smart home products. Its nationwide engineer network is familiar to many Hertsmere households, and bundling services can simplify maintenance.

4. EDF Solar

EDF offers solar panel and battery packages combined with export tariffs. As one of the UK's biggest energy groups, it brings financial stability and a clear route to combine solar with a supply account. EDF is a sensible option for those who value brand longevity when making a long-term investment.

5. Project Solar UK

Project Solar UK is a national installer known for its focus on residential systems and battery storage. It offers home surveys, bespoke system design and long product guarantees. Its specialist focus appeals to homeowners who want a dedicated solar company rather than a broader energy supplier.

6. Sunsave

Sunsave is a newer London-based solar business that stands out by offering solar and battery systems on a subscription model, spreading the cost into monthly payments that can be offset by savings. For younger families in Borehamwood and Potters Bar who want solar without a large upfront outlay, it offers an interesting alternative.

7. Heatable

Heatable began as an online boiler and heating business and has expanded into solar panels, batteries and heat pumps. Its digital quoting process is quick and transparent, making it easy to compare options before committing to a home survey.

8. GivEnergy

GivEnergy, based in Stoke-on-Trent, designs and manufactures inverters and home batteries that are widely fitted by independent installers. Its storage systems allow households to store daytime solar for evening use and to charge from the grid during cheap overnight periods, maximising savings on smart tariffs.

9. myenergi

myenergi, based in Grimsby, makes the zappi EV charger and eddi solar diverter. These devices direct surplus solar power into an electric car or hot water cylinder rather than exporting it cheaply. For Hertsmere homes with both solar panels and an EV, myenergi products are a popular add-on.

10. Tesla Energy

Tesla's Powerwall home battery remains one of the most recognisable storage products on the market. Installed through certified partners, it offers high capacity, a sleek design and a well-regarded app. It suits larger homes with high evening demand or families seeking backup resilience.

Solar Trends Shaping Hertsmere Homes

The biggest trend is the shift from solar-only systems to integrated energy setups. Batteries are now included in a majority of new residential quotes, and more homeowners pair solar with EV chargers and heat pumps. In-roof and all-black panel designs are also growing in popularity, especially in characterful streets where appearance matters. On the commercial side, businesses are using rooftop solar to reduce daytime operating costs and support sustainability reporting.

What to Ask Before You Buy

Request a detailed generation estimate based on your roof orientation, pitch and shading. Confirm that the installer is MCS certified and a member of a consumer code such as RECC or HIES. Ask which panel, inverter and battery brands are included, how long the warranties last, and whether monitoring is provided. Finally, check whether scaffolding, bird protection and export registration are included in the quoted price.

Final Thoughts

Solar power is one of the most accessible ways for Hertsmere residents and businesses to take control of their energy costs. Whether you prefer the convenience of a large supplier such as Octopus Energy or EDF, a specialist installer like Project Solar UK, or flexible models such as Sunsave, the companies above represent strong options. Pair panels with smart storage from GivEnergy, myenergi or Tesla, and your roof can become a genuine long-term asset.