• April 9, 2014 - Domestic Renewable Heat Incentive Released - Solar Thermal has got the great government funding through the Domestic RHI which it deserves! Solartwin Solar Thermal panels have just become not only a cost cutting and very green option to heat your water but now you will receive additional... More →
  • November 6, 2013 - Notice to Solartwin customers - Letter's from Stenfield & Co - A number of Solar Twin Ltd customers have been in touch this week to query a letter they have received from legal firm Stenfield & Co. - The content relates to Solar Twin Ltd's liquidation, and claims that customers "undoubtedly paid more than... More →
  • July 12, 2013 - Renewable Heat Incentive Updated - Solar Thermal to have Heavy Support - The Government have today released the Renewable Heat Incentive: The first step to transforming the way we heat our homes. If you are looking to buy a SolarTwin System contact Genfit. "the scheme will be open to anyone in these groups who installed... More →
  • May 27, 2013 - DECC announce they are doubling the RHPP grant for solar thermal from £300 to £600 - Solar Thermal Panels Receive Huge Renewable Heat Premium Payment - Solar Thermal has received a huge boost, it's a great time to buy a Solartwin Product. - Greg Barker tweeted about the scheme - - Big uplift for #RHPP Vouchers to put a shot in the... More →
  • February 14, 2013 - Solartwin DIY reviews - SolarTwin Reviews from Reviewcentre - "Review Centre is a community of real people, just like you, sharing their product and service experiences. - Our community of reviewers are a passionate bunch who want to help you discover what's right for... More →
  • January 17, 2013 - Crackdown on aggresive solar selling - YouGen, a leading consumer body serving the renewable and energy efficiency sectors, is calling for a change in the law after a review by the Office of Fair Trading revealed unscrupulous selling tactics by solar and other energy efficiency... More →

Solar PV panels. Solar electricity. Solar panels. PV suppliers. Photovoltaic solar modules for home electricity generation. Solar FIT.

Compare solar PV prices with Solartwin.

Q1 – How can I compare solar PV installation quotes properly?

A – Yes, if you compare “like for like” in your solar comparisons. You can also adjust for differing factors. Do your solar PV quotes include VAT at 5%? Do the solar PV quotes have the same Kilowatt-peak (kWp) ratings?   Are the solar prices offering the same PV installation output over a year? Is roof access included, or do you have to provide this? What about all the paperwork such as official MCS registration? How do the solar warranties compare – component by component? Is a remote solar energy monitor or PV performance display provided (this can make a difference of around £400.)? Does the solar supplier have nationwide UK coverage? How long have they been installing photovoltaics? Do the PV suppliers answer the phone promptly and helpfully?

Q2 – Why are solar PV installations cheaper than solar PV modules which are bought off the shelf or via Ebay?

A – This is because the retail installed price per watt of solar PV panels does not just cover the PV panel itself. Other marginal costs which always increase with peak solar wattage are:

1. A small warranty / damage / theft contingency sum.
2. Solar equipment handling and delivery
3. More solar PV cabling (this can also be thicker throughout for larger installations)
4. More solar PV fixings and roof support structures
5. More PV installation labour, of course – PV qualified electricians have huge annual accreditation / working at height insurance overheads – and are thus very expensive per hour. We usually pay our installers a fee per watt.

In addition, PV installation pricing step changes which sometimes cut in but we choose to apply linearly in our “per watt” PV installation price formula are:

6. Sometimes a larger PV inverter (a step-increment component which increases with system power)
7. Sometimes extra scaffolding for your photovoltaic project
8. Sometimes thicker power cabling is needed if larger PV installations are chosen

These 5-8 extra costs are not covered in the off-the shelf price of a PV panel or PV module.

There is also a profit element, but this is not very high. I hope you will agree, on reflection, this explanation is reasonable, like our PV installation prices!

Many thanks to Solartwin PV customer, JH, for asking this question!

For speed, and for the sake of the environment, Solartwin offer feasibility checks and fixed price solar quotes by phone.
Unique in the world, Solartwin's phone survey now also uses online aerial photographs of your roof in most urban areas!

Unlike most solar surveys, our instant surveys and quotes are completely free and with no obligation.
Click here to request a survey

Or Call us on

0344 567 9032

Domestic Renewable Heat Incentive Released

Solar Thermal has got the great government funding through the Domestic RHI which it deserves! Solartwin Solar Thermal panels have just become not only a cost cutting and very green option to heat your water but now you will receive additional funding too! The Domestic RHI rates – Released April 2014 Ofgem have produced a […]

Read More | Archives

Notice to Solartwin customers – Letter’s from Stenfield & Co

A number of Solar Twin Ltd customers have been in touch this week to query a letter they have received from legal firm Stenfield & Co. The content relates to Solar Twin Ltd’s liquidation, and claims that customers “undoubtedly paid more than you should have and it is highly likely that you will have been […]

Read More | Archives

Renewable Heat Incentive Updated – Solar Thermal to have Heavy Support

The Government have today released the Renewable Heat Incentive: The first step to transforming the way we heat our homes. If you are looking to buy a SolarTwin System contact Genfit. “the scheme will be open to anyone in these groups who installed an eligible technology since 15th July 2009” so if you have a […]

Read More | Archives

DECC announce they are doubling the RHPP grant for solar thermal from £300 to £600

Solar Thermal Panels Receive Huge Renewable Heat Premium Payment Solar Thermal has received a huge boost, it’s a great time to buy a Solartwin Product. Greg Barker tweeted about the scheme – Big uplift for #RHPP Vouchers to put a shot in the arm of the market ahead of full Domestic #RHI tinyurl.com/ktxz3o2 — Greg […]

Read More | Archives

Solartwin DIY reviews

SolarTwin Reviews from Reviewcentre “Review Centre is a community of real people, just like you, sharing their product and service experiences. Our community of reviewers are a passionate bunch who want to help you discover what’s right for you.” (Review Centre) We are well rated on review centre, this shows the excellent product quality of […]

Read More | Archives


or jump to...