Costs & Savings
Costs & Savings
Slash your bills. Lock in long-term returns.
Take control of your energy with award-winning solar panel systems – installed by Impact Services across Norwich, Cambridge, Ipswich, and the wider East Anglia region.
- Voted Solar Panel Installer of the Year – 2024 & 2025.
- 10-Year Workmanship Guarantee.
- Hundreds of local installations and 5-star reviews.
Protection From Future Price Rises
Since 2020, energy prices have surged by 72% – and while there have been brief dips, experts predict prices will remain high for the remainder of 2025 and beyond.
Solar panels provide a smart solution to shield yourself from rising costs. By generating your own electricity, you can take control of your energy bills and reduce reliance on the grid.
Investing in solar isn’t just about sustainability – it’s a long-term financial safeguard against unpredictable energy price hikes.
1. Initial Cost
The cost of your solar panel installation will primarily depend on the size (number of panels) of your system, and any additional extras such as battery storage you may wish to have. The size of the solar panel system you need depends on several factors, including energy consumption, roof orientation, and shading. See if solar panels are right for you.
2. Ongoing Costs (Maintenance and Durability)
Solar panels require very little maintenance. We recommend an annual service to remove dust, debris and bird droppings (often a window cleaner will be able to provide this service). While the panels themselves often last for 25 years or more, the inverter may require replacement during this period, costing around £750.
3. Annual Returns
One of the primary advantages of solar panels lies in their ability to substantially reduce electricity costs. This is done by reducing the amount of electricity you have to buy from the grid, and by generating an income in the form of Smart Export Guarantee (SEG) payments.
We have more information about the Smart Export Guarantee below.
4. Long-Term Benefits
Over a 25-year period, the financial benefits of installing solar panels become even more compelling. Here’s a breakdown of the potential costs and returns for different-sized systems*:
| System Size: | 4kW | 8kW | 10kW |
|---|---|---|---|
| Number of panels: | 10 | 20 | 25 |
| Cost: | £5,280 | £7,946 | £10,146 |
| VAT: | 0% | 0% | 0% |
| Annual Electricity Savings: | £471 | £913 | £1,150 |
| Annual SEG Payments: | £435 | £755 | £972 |
| Total Annual Savings: | £906 | £1,668 | £2,121 |
| Payback: | 6 years | 5 years | 5 years |
| 25-Year Return: | £31,323 | £57,696 | £73,368 |
| Total Annual Return: | 17.6% | 20.5% | 20.7% |
Smart Export Guarantee (SEG)
With the Smart Export Guarantee, your energy supplier pays you for excess electricity your solar panels export. Your home with a typical 4.5kW solar system could earn around £540 per year from SEG payments alone, and even more with the right tariff.
Current SEG rates (July 2025):
- “Octopus Intelligent Flux” up to 30p/kWh
- “E.ON Export Premium V2” 21p/kWh
- “E.ON Next” 16.5p/kWh
- “Octopus Outgoing Fixed” 15p/kWh
- “EDF Export 12m” 15p/kWh
To qualify, you’ll need an MCS-certified system (from Impact Services), a smart meter with half-hourly readings, and an EPC rating of D or better.
As part of our service, we’ll check your eligibility, calculate your potential earnings, and manage all the paperwork from start to finish.
Solar PV Finance Made Simple with Ideal4Finance
Our 0% Solar Finance through Ideal4Finance makes it easy to start saving with solar sooner.
Spread the cost with affordable monthly payments and enjoy the same award-winning Impact Services quality – trusted by hundreds of local customers and backed by our 10-year workmanship guarantee.
Online applications with quick decision.
What About Battery Storage?
Add a battery and keep more of what you generate.
- Use stored energy after dark.
- Boost self-consumption.
- Reduce export losses.
- Achieve even greater independence from the grid.
Customers with battery storage typically double their self-use and reduce grid reliance by up to 80%.
Ready to Take Control of Your Energy?
Whether you want to reduce your bills, increase your independence, or power your home with 100% renewable energy, we’re here to help.
With award-winning expertise, zero-deposit installations, and five-star aftercare, Impact Services is Norfolk’s trusted choice for solar and battery storage.
Complete our contact form to arrange your free home survey and no-obligation quote.
Price Assumptions
The figures shown are based on:
- South-facing roof, 35° pitch, no shading
- Easy-Deck or tower scaffolding
- Smart Export Guarantee rate of 15p/kWh
- Electricity savings of 35p/kWh
- Being at home during the day to use solar
- 3% inflation (ONS CPI average)
- Dedicated scaffolding (if required): +£300–£400