Save money and generate energy with Solar PV

You could save money by harnessing the power of the sun to generate your own electricity. We’re helping lots of customers to create enough energy to run their lighting and appliances with solar PV panels, even on cloudy days. You could also earn money back and sell surplus energy to npower, via our Feed-in Tariffs. Call now to see which solar PV system could be right for you.

Call us now on

0800 975 3199*

Lines are open 9am - 5pm Monday to Friday. Price of calls may vary and calls from mobiles may be considerably higher.

Solar PV Panels harness the sun’s energy in photovoltaic (PV) cells which are usually made from layers of silicon or another other semi-conducting material. The stronger the sunshine, the more electricity is produced. However, PV cells do not need direct sunlight to work, they can still generate electricity on a cloudy day. The electricity that is captured by solar PV panels can be used to run your lighting and household appliances.

In the UK, solar PV panels will not work effectively on a North-facing roof. The optimum position for solar panels is due south. Compared to a South-facing roof, East or West facing systems may generate between 15-20% less energy but this could still be enough to meet many UK households’ electricity needs.

Here’s how it works

  • 1 Solar cells within the PV panels act as a semi conductor that converts daylight into electricity.
  • 2 The electricity generated by the panels is DC (Direct Current). This is then converted to AC (Alternating Current), using an inverter so it can be used in the home.
  • 3 Household appliances can be used as normal via the Consumer Unit
  • 4 Upon meeting certain eligibility criteria, Feed in Tariff's can be paid. Feed in Tariff's work by rewarding customers with payments for every unit of electricity they generate. Customers are also entitled to an export tariff.
How solar panels work

Here's how it works

  • Reduce your energy bills by generating your own, clean and sustainable electricity
  • Save more money if wholesale energy prices continue to rise because the electricity you generate won’t be subject to fluctuations in the market
  • Find extra cost savings – as part of your solar PV survey, we’ll conduct a free home energy survey and advise you on other measures that could save energy – and money
  • Reduce your carbon footprint – a typical solar PV system could reduce your CO2 emissions by over a tonne each year.

Earn money with Solar PV

When you install solar PV panels with npower you could earn a quarterly payment for all the electricity you generate and for any surplus electricity you are not using that we export back to the national grid. You earn this money via our Feed-in Tariffs. You receive a tax-free, index-linked payment for every unit of electricity your solar PV system generates. Currently, this payment provides a low risk and highly competitive rate of return that would be hard to find via high street savings accounts.

What you could get back

A 4kWp system registered after the 1st April 2015 could generate an income of £781 a year in Feed-in Tariff payments and savings on your annual electricity bill.

Generation Income

The amount paid to you for every unit of electricity generated from your solar PV system, assumes DECC’s current Feed-in Tariff generation income of 13.39p for customers with a Solar PV system under 4kWp in size – as per

Export Income

The amount paid to you for every unit of electricity generated by your microgeneration system which is then exported back onto the grid. Assumes DECC’s current export tariff of 4.85p. Export income is tax free however, it is subject to VAT if the customer is VAT registered. The Secretary of State reserves the right to change the Feed-in Tariff rates.

Electricity Bill Savings

Based on year zero costs with no degradation or inflation applied, and on the Energy Saving Trust’s estimated current average standard rate electricity price of 14.05pper kWh, Ofgem's average UK household annual consumption of 3,200 kWh and a 4kWp system size. Assumes 50% of all electricity generated will be used in the home. 

System size 4kWp
Generation income £458
Export income £83
Saving on electric bills £240
System cost £6,700
System cost(payback) 9 years

Important Information

The calculation is based on MCS guidelines and is valid for a4kWp system on a south facing, 30 degree roof with no shading in WR4 post code area. Cost of the system is based on npower’s average installation costs for a 4kWp Solar PV system. Actual costs will vary depending on site and manufacturer of technologies. Generation income based on DECC’s current Feed-in Tariff rate of 13.39p for customers with a solar PV system under 4kWp in size (as per and export income assumes 50% of generation exported onto the grid at DECC’s current export tariff of 4.85p per kWh.

Electricity Bill Savings based on the Energy Saving Trust’s February 2015 estimated average electricity price of 14.05 per kWh with 50% of generated electricity used in the home.

Does not include any maintenance costs or tax implications. Actual performance may be significantly lower or higher if the characteristics of the installed system vary from the estimated values. Example provided is for illustrative purposes only and does not constitute financial advice.

Whilst npower has made all reasonable efforts to ensure that all information on its website is accurate at the time of inclusion, please note our Legal Disclaimer.

Is Solar PV right for you

Call us on 0800 975 3199 for a quick chat about solar PV and what we can offer.

We'll then pass you on to our preferred installation partner so they can arrange an initial assessment over the phone, during which they will:

  • Look at your property to see if Solar PV is right for you
  • Explain the costs and benefits of Solar PV
  • Describe the product range so they can design and price a system that meets your needs
  • Send you a full quotation pack with all the details of your discussion.

Your survey and quotation

Once you receive your pack and are happy to proceed they will:

  • Carry out a full survey of you property, including checking the suitability of your current hot water system, measuring your roof area, noting any obstructions and making sure your roof can take the load
  • Draw up a full design of the proposed system and give you a final quote.

Installing your system

If you are happy with your design and quote and wish to proceed our preferred installation partner will:

  • Ask you to sign the order form and pay a deposit
  • Arrange for the installation to be carried out with minimal disruption
  • Provide you with a Feed-in Tariff form so you can begin earning money as soon as your system is installed.

Already installing Solar PV? Learn more about Feed-in Tariffs.

Calling is free on a 0800 number, but charges may vary if you use a mobile. Calling us on a 0330 number will cost you no more than 01 or 02 numbers from landlines or mobiles. If you get 'inclusive minutes' with your package, calls on a 0330 number will be part of these. Calls may be monitored and recorded for training and security purposes.