SPARTA Residential

Oct, 2025

Project Overview

Location:
SPARTA, Rodona Road, Weybridge

Installation Date:
September 2025

System Type:
Residential rooftop solar PV system

SPARTA has successfully implemented a residential solar photovoltaic system, demonstrating how homeowners can significantly reduce energy costs while contributing to environmental sustainability.

System Specifications:
Total PV Modules: 48 Sharp NB-JG455B panels
Installed DC Capacity: 21.84 kWp
Maximum AC Power: 18.3 kW
Inverters: 2 x SolarEdge SE10K Home Wave inverters
Power Optimizers: 48 x SolarEdge S500B optimizers

Annual Energy Production:
Total Annual Production: 19,854 kWh
Specific Production: 909 kWh/kWp
Performance Ratio: 86%

Energy Distribution:
Direct Home Consumption: 18,133 kWh (91% of production)
Grid Export: 1,722 kWh (9% of production)
Solar Meeting Home Needs: 23% of total consumption

Financial Benefits:
Immediate Cost Savings
Current Annual Bill: £23,406.00
Post-Solar Annual Bill: £17,707.95
Annual Savings: £5,698.05
Bill Offset: 24.34%

Long-term Financial Benefits:
System Cost: £30,000
Lifetime Bill Savings: £128,045
Net System Profit: £98,045
Total Projected Savings: £178,368 over 25 years

Environmental Impact:
Annual CO₂ Emissions Saved: 3.84 tonnes
Equivalent Trees Planted Annually: 176 trees
Levelized Cost of Energy: £0.086/kWh

Key Benefits:
Immediate Cost Relief: Over 24% reduction in electricity bills
Energy Independence: 91% of solar production used directly in home
Budget Predictability: Protection against rising energy costs
Environmental Leadership: Significant carbon footprint reduction

Technical Features:
Module-level power optimization across multiple roof orientations
Dual inverter system for enhanced reliability
Smart export optimization with 15p/kWh export rate
Zero energy clipping for maximum efficiency

Conclusion:
The SPARTA residential solar installation demonstrates how homeowners can successfully transition to sustainable energy solutions. With immediate cost relief of over £5,600 annually and substantial long-term savings exceeding £128,000, this project showcases the intelligent choice of solar energy for forward-thinking homeowners seeking energy independence and environmental responsibility.

Latest posts

Reviews

We’re 5 star rated

    
 
 
       Posted on Google  
   
   Kirit Naik 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really pleased with the whole solar installation experience. From the initial contact through to installation, everything was handled quickly and professionally, with the installation completed within just a few days.
  
 
      Posted on Google  
   
   Rodney Easter 
 
 
 
 Trustindex verifies that the original source of the review is Google. Your staff were efficient courteous clean and amiable.The job was done in an amazingly short time
  
 
      Posted on Google  
   
   Barry Evans 
 
 
 
 Trustindex verifies that the original source of the review is Google. A great service.
First class installers and nothing was too much trouble for them.
Once they fitted all the equipment they explained how everything worked, downloaded the app for me and set everything up.
Great !!
  
 
      Posted on Google  
   
   Philip Govan 
 
 
 
 Trustindex verifies that the original source of the review is Google. The team from Swift Solar were amazing.  The geography of our property presented some unique challenges but they tenaciously persevered to find a solution.  They were very helpful and obliging in every respect.  I have no hesitation in strongly recommending them.  I also commend the sales representative for his comprehensive knowledge of solar electricity generation and his non-pushy approach in arriving at the optimal installation for our circumstances.
  
 
      Posted on Google  
   
   Charles Hamer 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fantastic experience from start to finish with Swift Solar. Great initial contact, explained exactly what they will provide, sent over estimates for costs and basis of payback periods. The site installation phase was great, all completed in less than a day with the system up and running. The only issue was why I hadn't had it installed earlier. Well done for all elements of the work.
  
 
      Posted on Google  
   
   pakyin cheng 
 
 
 
 Trustindex verifies that the original source of the review is Google. highly recommend SWIFT Solar to anyone considering a solar installation. Ian, George, and the entire team were incredibly professional and helpful throughout the process. Their expertise made the transition to solar energy smooth and stress-free
  
 
      Posted on Google  
   
   Mark cotton 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really helpfull company .
Great Advice from Simon.
  
 
      Posted on Google  
   
   Martin Storr 
 
 
 
 Trustindex verifies that the original source of the review is Google. From the start Swift were efficient but measured with their response to my enquiry.  None of the pressure-selling that I had experienced before, just information and options that allowed us to decide the best solution for us.  All our queries were answered (which demanded a lot of patience), with the relevant facts and, where there were none....no guess work, just honest reporting of the estimates.

Once decided we were pleasantly shocked by the install date we were offered which was "next week"!  Everybody turned up on time on the day in question, discussed the wiring options with me until I was satisfied and, with the exception of a late panel delivery, completed on schedule.  They even re-sited the battery to optimise how it looked on the side of our house. Although I was not concerned about the couple of days delay, I received an apology and a panel upgrade by way of compensation.

All is up and running now and I'm still not bored of watching the app telling me how much I am earning back from the grid. I calculate that at this rate the payback period of 6.5 years is likely to be significantly shorter.  We'll see ! Thank you Simon and all at Swift, GREAT JOB .....  HIGHLY RECOMMENDED !
  
 
      Posted on Google  
   
   Stuart Relf 
 
 
 
 Trustindex verifies that the original source of the review is Google. So impressed with the guys from Swift, George,Nick and Sean. The whole process of installing the Powerwall 3 has been very smooth throughout from liaising with Sean in sales through to George and Nick who installed it. I really felt that George and Nick treated it like they were installing it in their own homes. The work was very neat and we are very pleased. We would definitely recommend Swift Solar.
  
 
      Posted on Google  
   
   Nick W 
 
 
 
 Trustindex verifies that the original source of the review is Google. Got everything done very quickly, I ran the recommendation and price etc through chatgpt and it confirmed for me this was the best deal and correct information I need for usage. Quickly done and no problems.
  
 
  
  
 
 
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