5.4kW Solar and Battery Installation in East Sussex

Case Study Overview

In July 2025, The Little Green Energy Company installed a solar PV and battery system for a homeowner in East Sussex. The customer wanted to cut energy bills, use less grid power, and lower their carbon footprint.

The final system was designed around their home and energy needs. It combined reliable SunPower solar panels with a smart SigEnergy battery to store extra power.

System details:

• Location: Crowborough, East Sussex
  
• System size: 5.4kW
  
• Panels: 12 SunPower Performance
  
• Battery: 1 SigEnergy SigenStor
  
• Estimated yearly generation: 4,590 kWh
  
  

The Challenge

The customer wanted to cut monthly energy costs and use more renewable power. They also wanted energy in the evening when solar panels are not generating. Long term reliability and future proof technology were key concerns.

The Solution

Solar Panels

We installed 12 SunPower Performance panels on the home. These panels are reliable and designed to last over 30 years. They come with a 30 year product and performance warranty.

Battery Storage

We added a SigEnergy SigenStor battery to store excess power. The battery uses smart learning to adapt to the home’s energy use. It provides energy at night and during peak times, with room to expand.

The Benefits

The new system helps the homeowner save money each month. It provides 4,590 kWh of clean energy every year. Stored solar power means less reliance on the national grid.

The battery also protects against power cuts. It ensures the home has power when it is most needed. This creates more independence and security for the customer.

Why They Chose TLGEC

The customer chose The Little Green Energy Company for our long experience. We were founded in 2010 and have completed thousands of projects. We have been a Which? Trusted Trader since 2014.

All of our work is carried out by our own in-house team. We work with leading brands such as SunPower, Tesla and SigEnergy.  Customers rate us highly and we have hundreds of five star reviews.

Customer Feedback

“Morgan and Dylan were part of the Little Green Energy Companies install team . I found them to be courteous, professional and hard working. The standard of workmanship was outstanding and very neat. All handover details were explained clearly and I felt confident that I would be able to manage the app and functions easily. Great job guys. Thank you so much”

Conclusion

The East Sussex homeowner now benefits from lower bills and more energy independence. Their new system is reliable, efficient and built for the future. By working with TLGEC they gained a trusted partner for their renewable journey.

Ready to explore solar for your home? Contact us today.