Solar and Battery Installation Chorley: £1,640 Annual Savings with Sigenergy Battery Storage
Every home has different energy needs. Because of this, the best solar systems are designed around how a property uses electricity.
This Solar and Battery Installation Chorley project in Hale Grove, Chorley (PR7), shows how a well-designed solar PV and battery system can help reduce energy bills while generating clean electricity.
Installed by NRG Solar Ltd, the system combines 16 high-efficiency AIKO 530W solar panels with a 6kW Sigenergy inverter and 18.08kWh of battery storage.
The system is expected to provide £1,640 in annual energy bill savings, with an estimated payback period of 6 years and 7 months.
System Overview:
This Chorley installation was designed to generate renewable electricity throughout the year while giving the homeowner greater control over how that energy is used.
System Specifications:
- 16 × AIKO 530W solar panels
- 8.48kWp solar PV system
- 6kW Sigenergy inverter
- 18.08kWh Sigenergy battery storage
- 2 × SigenStor BAT 10.0 batteries
Together, these components create a complete home energy system.
During the day, the AIKO solar panels generate electricity from sunlight. The Sigenergy battery then stores surplus energy for use later.
As a result, the homeowner can use more of their own renewable electricity and reduce their need to buy power from the grid.
How This Solar and Battery Installation in Chorley Works
The solar panels generate electricity throughout the day. The home uses this energy first, helping to reduce electricity imported from the grid.
Any unused solar energy can then be sent to the battery storage system.
Later, when solar generation falls, the stored energy can help power the home. This is particularly useful during the evening when household electricity demand can increase.
For this installation, the expected energy split is:
- 32% self-consumption
- 68% exported to the grid
The high export figure means the system is expected to generate much more electricity than the property uses at certain times of the year. Surplus generation can therefore be exported through the Smart Export Guarantee.
Solar generation changes throughout the year. As expected, this system produces its highest output between April and September.
The strongest month is expected to be May, with average daily generation reaching approximately 30.7kWh.
June follows closely, with around 30.2kWh generated per day.
This seasonal pattern shows why battery storage can be useful. During periods of strong solar generation, surplus electricity can be stored or exported rather than going unused.
Financial Results
The system has been designed to provide strong long-term financial benefits.
Estimated Annual Energy Bill Savings:
Approximately £1,640
Estimated Payback Period:
6 years and 7 months
Estimated Annual Energy Bill After Installation:
Approximately -£219
A negative annual energy bill indicates that the system is expected to generate more financial value than the property’s remaining annual electricity costs under the stated assumptions.
In addition, the homeowner can benefit from payments for electricity exported to the grid through the Smart Export Guarantee.
Estimated Cumulative Bill Savings
The projected savings continue to grow over the life of the system.
| Year | Usage Savings | Smart Export Guarantee | Total Savings |
|---|---|---|---|
| 1 | £824 | £618 | £1,442 |
| 5 | £4,834 | £3,062 | £7,896 |
| 10 | £11,936 | £6,049 | £17,986 |
| 15 | £22,369 | £8,963 | £31,332 |
| 20 | £37,695 | £11,803 | £49,497 |
These figures show how solar panels and battery storage can provide value over many years.
Environmental Benefits
The financial savings are only part of the benefit.
By generating renewable electricity at home, this solar installation also helps reduce the property’s carbon footprint.
Every Year:
- Approximately 2 tonnes of CO₂ reduced
- 126% offset of CO₂, SOₓ and NOₓ emissions
Over the System Lifetime:
The environmental impact is equivalent to:
- 46,162km of car travel avoided
- 297 trees planted
- 33 long-haul flights avoided
Therefore, the homeowner can reduce energy costs while also making a positive contribution to a cleaner energy future.
Get a Free Solar Design and Savings Assessment
Your home could be the next NRG Solar case study.
Thinking about solar panels or battery storage in Chorley?
NRG Solar Ltd can design a system around your home and energy usage.
We can help you understand:
- How much solar 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.