Solar and Battery Installation Walton: £2,058 Estimated Annual Savings
Every home uses energy differently. Therefore, a well-designed solar system should match the property’s energy needs rather than simply use the available roof space.
This Solar and Battery Installation Walton project on Belvoir Road, Walton (WA4), shows how AIKO solar panels and Sigenergy battery storage can help a homeowner reduce energy costs and make better use of renewable electricity.
Installed by NRG Solar Ltd, the system combines 20 AIKO 465W solar panels, a 10kW Sigenergy inverter and 27.12kWh of Sigenergy battery storage.
The system is expected to provide approximately £2,058 in annual energy bill savings, with an estimated payback period of 6 years and 9 months.
System Overview
This Walton solar installation has been designed to generate renewable electricity throughout the year while storing surplus energy for later use.
System Specifications:
- 20 × AIKO 465W solar panels
- 9.3kWp solar PV system
- 10kW Sigenergy inverter
- 27.12kWh Sigenergy battery storage
- 3 × SigenStor BAT 10.0 batteries
The solar panels generate electricity during daylight hours. The Sigenergy inverter manages the energy produced by the panels, while the batteries store surplus electricity.
As a result, the homeowner can use more of their own solar power and reduce the amount of electricity they need to purchase from the grid.
How This Solar and Battery Installation in Walton Works
During the day, the AIKO solar panels generate electricity from sunlight. The property uses this energy to meet its household demand.
When solar generation is higher than the home’s immediate needs, surplus electricity can charge the battery storage system.
Later in the day, stored energy can help power the property when solar generation drops. Any additional surplus can then be exported to the grid.
This installation is expected to achieve:
- 55% self-consumption
- 45% export to the grid
The high self-consumption rate means more than half of the electricity generated is expected to be used within the home.
Solar generation varies throughout the year. For this installation, the highest generation is expected between April and September.
The strongest month is expected to be May, with approximately 31kWh of electricity generated per day.
June follows closely, with expected generation of around 30.6kWh per day.
During periods of high generation, the solar panels can produce more electricity than the property needs. The battery can store some of this surplus energy, while additional power can be exported to the grid.
Financial Results
This system has been designed to provide long-term financial benefits through a combination of energy savings and electricity exports.
Estimated Annual Energy Bill Savings:
Approximately £2,058
Estimated Payback Period:
6 years and 9 months
Estimated Annual Energy Bill After Installation:
Approximately £298
The homeowner can also receive Smart Export Guarantee payments for surplus electricity exported to the grid.
Estimated Cumulative Bill Savings
The projected financial return continues to grow as the system generates renewable electricity and exports surplus power.
| Year | Usage Savings | Smart Export Guarantee | Total Savings |
|---|---|---|---|
| 1 | £1,642 | £417 | £2,058 |
| 5 | £9,536 | £2,056 | £11,592 |
| 10 | £23,097 | £4,048 | £27,145 |
| 15 | £42,227 | £5,975 | £48,202 |
| 20 | £68,273 | £7,839 | £76,113 |
These projections demonstrate the potential long-term value of combining solar panels with battery storage.
Environmental Benefits
The financial savings are only part of the benefit.
Generating renewable electricity at home can also help reduce the property’s carbon footprint.
Every Year:
- Approximately 2 tonnes of CO₂ emissions reduced
- 61% offset of CO₂, SOₓ and NOₓ emissions
Over the System Lifetime:
The environmental benefit is equivalent to:
- 46,420km of car travel avoided
- 298 trees planted
- 33 long-haul flights avoided
Therefore, the installation can help the homeowner reduce energy costs while also supporting a cleaner energy future.
Get a Free Solar Design and Savings Assessment
Thinking about solar panels or battery storage in Walton or Warrington?
NRG Solar Ltd can design a system around your home and energy usage.
We can help you understand:
- How much solar electricity your property could generate
- How much battery storage you may need
- How much electricity you could save
- How much surplus energy you could export
- The potential return on your investment
Contact NRG Solar today for a free solar design and savings assessment.
Your home could be the next NRG Solar case study.