Watch & Read: 1 Year After Solar Installation… Here’s What Happened
What happens one year after a solar installation? In this video, we make a real customer care call to one of our clients to see how his system is performing 12 months on. The results? • 5 people living in the…
What this video covers
This is one of KMM's full-length case study videos. The 60-second teaser above shows the headline; this article walks through the full numbers and the engineering decisions behind them.
What happens one year after a solar installation? In this video, we make a real customer care call to one of our clients to see how his system is performing 12 months on. The results? • 5 people living in the…
Solar battery storage economics
- Typical domestic battery cost: £640–£900 per usable kWh fitted in 2026 (LFP chemistry)
- Recommended 4-bed family home size: 9.5–13.5 kWh usable
- Self-consumption uplift: from ~38% to ~75% on typical 4kWp domestic install
- Time-of-use tariff arbitrage: charge at 7–7.5p overnight, discharge during 28p peak — typical 6–8 year payback on battery-only installs
- Warranty: tier-1 brands warrant 10 years and 80% capacity retention; cycle life typically 6,000+ cycles
How this applies to your project
If you're researching solar for your own home, farm, factory or commercial building, the principles in this video apply directly — but the specific numbers will vary based on your roof orientation, your import tariff, your half-hourly load profile and your tax position.
KMM's fully funded survey is the fastest way to translate this video into specific advice for your site. We:
- Run a desktop assessment from your MPAN and roof satellite imagery — inside 5 working days, no site visit needed at this stage
- Schedule a drone survey if the desktop assessment shows the project is viable — 3D model of your roof inside 48 hours
- Deliver a bound proposal with full ROI cash model, three finance routes side-by-side, and every commission disclosed
- Decide together — no hard sell, no time-pressured discounts, no deposit required to keep the quote open for 30 days
Related KMM pages
Battery Storage · Ev Chargers · Cost · Case Studies · Commercial Solar · Procurement · Commercial Solar Monitoring
Subscribe for the next video
Steve and Kieren publish a new video on the KMM YouTube channel — Solar Made Simple every couple of weeks. Topics typically rotate through real customer install case studies, technical explainers, finance route walk-throughs, and tariff comparisons.
Book a fully funded survey to apply this to your project
Tell us your postcode, sector and current electricity spend — we will run a desktop assessment inside 5 working days. No deposit, no pressure.
Book Fully Funded Survey → 0115 647 3822