Case Study: Inside Always Off-Peak’s Energy-Saving Home Installs

Case Study: Inside Always Off-Peak’s Energy-Saving Home Installs

When it comes to shrinking household energy bills, more panels aren’t always the answer. The real win? Smarter use of the power you’ve already got.

That’s where Fogstar batteries come in. Working with our trusted installer, Always Off-Peak, homeowners across the UK are transforming the way they consume electricity. By storing cheap, off-peak power (and solar when available), these homes are running more efficiently, saving up to 75% on energy costs.

Here are three installs showing just how versatile Fogstar systems can be:

Large-Scale 3-Phase Install: Keeping a Mansion Powered Off-Peak
System configuration:

  • 3 × Victron Multiplus 2 48/15000/200 inverter chargers
  • 6 × Fogstar Energy 48v 32kWh Batteries
  • 1 × Victron Cerbo GX + Touch Screen~
  • 3 × Victron Lynx distributors

A huge home, zero solar panels, and one clear goal: run on cheap energy 24/7.
By charging Fogstar’s high-capacity batteries during low-tariff hours, this property now powers itself around the clock, cutting bills by around 75% with a payback period of just 3 years.

🏡 Family Home with High Energy Demand – 32kWh System

System configuration:

  • 1 × Solis 5kW AC coupled inverter charger
    1 × Fogstar Energy 48v 32kWh Battery

Air source heat pump, jacuzzi, solar panels… this home uses energy like it’s going out of fashion. Adding a 32kWh Fogstar system means the family can now store both solar generation and off-peak electricity. The result? Lower bills and maximum value from every kWh.

Estimated ROI: 3 years.


🏰 Listed Property – 32kWh System

System configuration:

  • 1 × Solis 5kW AC coupled inverter charger
  • 1 × Fogstar Energy 48v 32kWh Battery

This listed five-bedroom property came with high energy bills and no solar. Fogstar storage was the fix. By charging off-peak and discharging all day, the homeowners have slashed costs and future-proofed their home.

Estimated ROI: 3 years.

Why Installers Choose Fogstar

Always Off-Peak summed it up perfectly:

“We love Fogstar because they are a UK-based company, with a UK call centre and great customer service. Their products perfectly fit our company profile requirements - high kWh capacity in a single unit, enabling a rapid return on investment. We also use their Drift range for off-grid applications and they are flawless, hence the company’s growing popularity.”

From large-scale 3-phase systems to busy family homes, Fogstar storage is proving one of the fastest, most reliable ways to cut household energy costs, often with full ROI in just three years.



👉 Want to see more installs like these? Check out our friends at Always Off-Peak.


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