George's home
This Luton residential solar PV installation features an 8.01kW system with a GivEnergy 9.5kWh battery, increasing self-consumption and optimising energy efficiency. Generating approximently 6,000kWh annually, the system reduces reliance on the grid, qualifies for Smart Export Guarantee (SEG) payments, and cuts carbon emissions by approximently 1,300kg per year. The project showcases significant energy savings, improved sustainability, and greater energy independence.
Oct 3, 2024
18
1
8.01
kW
Overview
Location: Luton, Bedfordshire
Date of Installation: October 2024
Type: Solar PV and Battery
Roof Layout: Front and Rear roof
Panel Count: 18
System Size: 8.01kw
System Overview
The proposed solar PV system consisted of: 10 Trina 445w panels to the front and 8 Trina 44w panels to the rear. Givenergy 5kWh Hybrid inverter with two strings attached. 1x 9.5kwh Gen 2 Givenergy battery.
Performance Estimates
Annual Energy Generation
Using meteorological data and industry-standard calculations, the system's expected output was estimated as:
Total Generation approximately: 6,000 kWh per year
This estimate was based on the system's location, orientation, and shading factors, using a sunpath diagram to model annual sunlight exposure.
Consumption & Grid Export
An energy consumption analysis was conducted based on an average household usage of 3,700 kWh per year. The expected distribution of generated electricity was:
Self-consumed directly from solar: 1375 kwh
Stored and used via battery: 1447 kwh
Exported to the grid: 3148 kwh
Losses: 126 kWh
Smart Export Guarantee (SEG) Eligibility
The installation qualified for SEG payments, allowing excess electricity exported to the grid to be sold back to an electricity supplier. More information on SEG eligibility and applications can be found at Ofgem.
Environmental Impact
The system contributed significantly to reducing the property’s carbon footprint by approximately:
Annual CO₂ savings: 1,300kg
Equivalent to approximately:
4,700 miles driven by a diesel car
CO₂ absorption of 1300kg
60 trees annually
Disclaimer: These calculations are based on estimated system output and standard carbon emission factors provided in the UK Government’s 'Greenhouse Gas Reporting: Conversion Factors 2024'. Actual results may vary due to differences in household energy use, weather conditions, and grid carbon intensity.
Performance and Financial Projections
Investment & Expected Savings
The total cost of the installed system was £12,245 (including VAT at 0%). The estimated payback period was by approximately 8 years, with an estimated first year saving of approximately: £600
Disclaimer: Payback periods are estimated based on current electricity prices and SEG rates. Future price changes, electricity consumption habits, and system performance may affect the actual payback timeline.
Installation
The system was installed by a trained installation team certified by MCS, RECC, and NAPIT and completed within a short period with minimal disruption to the household.
*the above illustration is based on a unit cost of electricity of 24.5p/kWh and a SEG rate of 15p/kWh
Speak to us about this project
We're here to answer any questions you may have.
Installed and commissioned by
George's solar & battery system
View the hardware that we installed for this customer.
18
solar panels
1
batteries
Full list of hardware installed
Use our free solar quote tool
Answer a few questions, draw your roof and our free tool will give you an estimate of how much solar could save you and your household.
Takes 60 seconds
No bills or documents needed
Get a real price estimate with real hardware
Adjust system size and see impact on cost & savings
Other
domestic
installations
View other Chiltern Solar case studies
Bob's Home
This Aylesbury residential solar PV installation features a 6.6 kW system with Tesla Powerwall 3, boosting self-consumption by 23% and achieving 55% grid independence. The project highlights significant energy savings, reduced carbon footprint, and enhanced backup power reliability.
6.6
kWp
15
panels
Hugh's Home
Discover the case study of a 10.25kWp residential solar installation in Kings Langley, Hertfordshire. Featuring Trina Vertex S+ panels, a Fox hybrid inverter, and Fox battery storage. The system will generate approximately 8,693kWh* annually and could save Hugh approximately £970.00** in the first year. Learn about the potential financial benefits, environmental impact and real-time performance monitoring.
10.235
kWp
23
panels
Phil's Home
Discover the case study of a 7.28 kWp residential solar installation in Chalfont St Giles, Buckinghamshire. Featuring Aiko Neostar 2S solar panels, a Fox hybrid inverter, and Fox battery storage, the system is expected to generate approximately 4,800 kWh* annually and could save the homeowner approximately £1,000** in the first year. Learn about the potential financial benefits, environmental impact, and real-time performance monitoring.
7.28
kWp
16
panels
