FAQs

We appreciate that the world of solar PV can be quite complicated. At Helios Energy we’re always more than happy to chat to you on the phone or in person about any of your queries. We have also put together a handy FAQs page just in case we can answer your question with the click of a button.

What is solar PV?

Solar PV is generating electricity from the sunlight. Panels, mounted normally on a roof space, use the sunlight to generate DC electricity which then flows through an inverter to convert the DC in AC – the electricity type most used in your home or business.

How much electricity can be produced by solar panels?

Panels are getting more efficient every year. The panels we install are generally between 300W and 375W but can have more output. 

The amount of electricity produced really depends on the size of the system, shading and orientation. Generally speaking, we estimate for every kW of solar PV installed, you will generate around 1000 kWh per year. 

We have clever spreadsheets and calculation tools which take your individual circumstances  into consideration and can more accurately predicted  your proposed systems output. We provide a breakdown of this with every quote we send out.

I have a flat roof; can you still install solar panels?

Yes of course. We work alongside many fixing system manufacturers who have solutions for almost every type of roof out there flat or pitched.

How long do solar panels take to install?

This really depends on the size and variables of your system. When we visit you to discuss your options, we will give you a good indication of timescales. Generally, a 4kW system will be fully mechanically and electrically installed in two or three days.

I have a problem with my solar PV system, but it doesn’t look like my manufacturer exists anymore. Can you help?

Having been involved in the industry for a substantial amount of time this problem is not uncommon. We have great contacts with manufactures to get to the bottom of this problem and help with any warranty claims. We also have the knowledge to advise you on alternative options if needs be.

Do the storage batteries work with any type of solar PV panels?

Yes, battery storage systems work any solar PV panels. It works to store the electricity your panels produce for use whenever you like.

How long do storage batteries last?

The Tesla Powerwall for example guarantees 90% efficiency for up to 10 years after install. Different manufacturers have different guarantees and warranties – we will make you aware of these during the survey and quotation phase of our process.

How long will it take to charge my car?

The rate of charge will depend on your car and on your charge point. Many manufacturers of charge points have different charge modes dependent on your needs e.g: the my energi Zappi has a fast, eco and eco+ mode. Zappi will deliver up to 7kW provided the supply connection is suitably rated in fast mode which will charge most cars as quick as possible

Ian Farminer
January 13, 2024
Helios Energy was used as the installer by the supplier of our solar system. An amazing team arrived to fit our system. We would like to thank, Laurence, Gavin, Russ and Aaron for all their hard work during the install. Having met the team, we would highly recommend Helios. If only we had known of them in the first case.
Darren Edwards
November 4, 2023
I used Helios to supply and install a solar panel and battery system in April having had them them recommended by a neighbour and seeing the quality of their work. They listened to my requirements and concerns and installed a system that I am very happy with. They did a great job installing the panels and running cables so they regained out of sight. They also installed the inverter and batteries in my garage to take up as little space as possible . Their pricing is as competitive and they used good quality equipment. I have had a couple of queries regarding system tuning since the install and they have assisted with these. I would highly recommend this small family run company.
Ian Francis
October 13, 2023
Helios installed solar panels, batteries and EV charger. They were very responsive and professional. I highly recommend.
Ian Challand
October 12, 2023
I have an existing solar and battery installation and needed an additional battery. I researched several companies and chose Helios based on price, location and knowledge. I found them to be very reliable, and they kept me informed every step of the way. I found them to be thorough in asking me what I needed and the best way to implement my needs and to deliver and install my products efficiently and to always clean up afterwards. This si the company the others should aim to emulate.
Douglas Elder
February 7, 2023
Extremely speedy job putting up our solar panels and very happy to explain as they went. Also extremely nice guys!
Les Beer
January 13, 2023
Good people to deal with, Will et all supplied my kit about 4 years ago, very professional installation with good advice too
John Knights
October 30, 2022
Absolutely satisfied with Helios excellent, informative service. Totally satisfied ......Highly recommended.
Susan Booker
November 1, 2021
Laurence is a very pleasant and friendly electrician. He did a good job and left the area clean and tidy. Very happy with the work and will definitely call him when we need more work .
Bev Willstrop
July 22, 2021
Very pleased with the work done to reinstall my solar panels following roofing work. The guys worked so hard in over 30 degree heat. Polite and cheerful throughout. Panels working well again. No hesitation in recommending to others.
Joseph Kelly
June 8, 2021
Lawrence came to help put up several pendant lights and a porch light in our new house and he was very efficient and professional with his work. We look forward to using him again in future for a loft light and outdoor light. We highly recommend his services! Joe and Lucy

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