Jem Energy

Name: Jem Energy
Address: Farnborough, GU147QH, GB
Telephone: +441252900052
Price range: Not Applicable

Call Directions Website Contact the business

Jem Energy - designs and installs renewable energy systems, including solar PV, battery storage and heat pumps. A 21 Degrees Company

We help customers make sensible long-term decisions, with systems that are designed properly and installed with care.

21/10/2026

One of the most persistent heat pump myths is that they stop working once it gets properly cold. They’re built for exactly that. Modern air source heat pumps are designed to run through winter conditions, with the system working harder as the temperature drops rather than giving up.

What decides how well that works in practice is the design behind it: the heat loss of the property, the radiators or underfloor heating, the required flow temperature, and the size of the heat pump itself.

Get those right and a heat pump keeps doing its job through a British winter.

For Heat Pump Day, that’s the myth worth retiring.

Thinking about changing how you heat your home? Speak to Jem about whether a heat pump would suit the property.

14/10/2026

Solar panels tend to generate the most while the sun's up, which isn't always when a household uses the most electricity. Evenings tend to be busier: people home from work, cooking, charging devices, generally using the house more.

Battery storage helps bridge that gap. It holds onto some of the electricity generated during the day so you can draw on it in the evening, instead of exporting it straight back to the grid.

The right setup depends on the property, the solar system, and how the household uses energy day to day. But the idea behind it is simple: generate while the sun's out, use more of it later.

Thinking about battery storage? Speak to Jem about what would suit your current setup.

07/10/2026

Jem Energy hasn't changed. Same team, same focus on getting customers the right setup for their home and doing the work properly.

What's different is the support behind the business. As part of 21 Degrees, Jem now has access to a wider group of renewables and building performance expertise, on top of what the team's always brought.

In practice, that means customers still deal with the people they know, with more knowledge available when it's useful.

Speak to Jem about the right next step for your home.

30/09/2026

Solar panels generate from daylight, so they carry on working through autumn and winter, with output naturally easing back as the days get shorter.

How well a system holds up through the colder months usually comes down to the design behind it: which way the roof faces, how much shading there is, how much space is available, and how the household actually uses energy.

Get that right and the system keeps pulling its weight all year round.
Thinking about solar for your home? Speak to Jem about what would work for your property.

23/09/2026

Nobody buys solar panels, battery storage or a heat pump expecting something to go wrong.
But products can develop faults. Manufacturers can issue updates, safety notices or recalls.

That is when the support behind the installation suddenly matters.

Do you know who to contact?
Will someone help you understand what the issue means for your system?

And will they help get it sorted rather than simply point you towards the manufacturer?

For us, aftercare is part of the job. Because a good installation is not just about getting everything working on day one. It is also about being there if something needs attention later.

Speak to Jem about your installation and the support that comes with it.

15/09/2026

The installation might be finished in a few days.
Your relationship with the installer should last a lot longer.

That is why the workmanship warranty and the support behind it are worth understanding before you choose who to work with.

Ask:
☑️ What warranty comes with the installation?
☑️ How long does it last?
☑️ What happens if something needs attention later?
☑️ Who do you actually contact if there is a problem?

These things are easy to overlook when you are comparing equipment and prices.
They feel rather more important if you need help a few years down the line.

Comparing renewable energy quotes? Ask Jem what support is included after the installation too.

09/09/2026

If you already like the idea of solar, battery storage is often the next question.

Because generating electricity is one thing.
Using more of it at the right time is another.

01/09/2026

A solar survey should involve more than checking whether panels will fit on the roof.

The household’s electricity use matters too.

How much is being used? When is it being used? Could that change if an EV charger or heat pump is added later?

Then there is the practical side. Roof space, orientation, shading, cable routes and possible locations for the inverter and battery.

Those details shape the design and help determine what will actually work for the property.

The panels may be the visible part. The survey is where the system begins to take shape.

Thinking about solar? Book a survey with Jem Energy.

26/08/2026

One street. Five Jem solar installations.
And we’re not finished yet.

This is Clevedon Gardens near Swindon, where we’ve now installed solar for five of the nine homes on the street.

There’s something pretty satisfying about seeing that from above.

One installation leads to a conversation.
That conversation leads to another neighbour getting in touch.
And before long, you can actually see the trust spreading along the road.

For us, that kind of repeat local work means a lot. People have seen the systems, spoken to their neighbours and felt confident enough to ask us to help with their own homes too.

We’ll see if we can complete the set one day.

Thinking about solar for your home? Speak to Jem about the right setup for your property.

21/08/2026

Two solar quotes can look remarkably similar on paper.
But they may be based on completely different thinking.

One may be designed around how your household actually uses electricity. Another may use a standard system size.
One may clearly account for the inverter, battery, warranties and long-term support. Another may focus mainly on the headline price.

Those details do not always jump out from the total at the bottom.
Before choosing, ask what the system has been designed around, what is included and which assumptions have been used.

A solar installation should fit the home and the people living in it. Not simply the package an installer happens to sell most often.

Comparing solar quotes? Speak to Jem before you decide.

Address

Farnborough
GU147QH

Telephone

+441252900052

Website

http://www.jem-energy.co.uk/

Alerts

Be the first to know and let us send you an email when Jem Energy posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Jem Energy:

Want your business to be the top-listed business in Farnborough?