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

When it comes to reducing household energy bills, sometimes the smartest move isn’t adding more solar panels, it’s making the most of the power you already buy.

That’s exactly what these homeowners have done with the help of Always Off-Peak and a range of Fogstar Energy storage solutions.

With carefully designed battery storage systems, these homes can load up on off-peak electricity and enjoy the benefits around the clock, slashing energy costs by up to 75%. Let’s take a closer look at three very different installs, all with one thing in common: massive savings.

⚡ Large-Scale 3-Phase Install: Powering a Mansion 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

This customer owns a very large home and wanted one thing: to take advantage of their off-peak tariff all day long. With no solar panels in sight, this system charges exclusively from the grid during low-cost hours, then powers the home around the clock.

The result? Energy bills reduced by around three-quarters and a projected payback period of just 3 years. Not bad for a system of this scale.

🏡 32kWh System for a Busy Family Home

System configuration;

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

This four-bedroom family home doesn’t do “low energy living.” With an air source heat pump, jacuzzi, and solar panels - energy demand was high.

By adding a 32kWh storage system, the family can now store their solar generation and off-peak power, keeping bills under control and ensuring they get maximum value from every kilowatt-hour.

Estimated ROI: 3 years.

🏰 32kWh System for a Listed Property

System configuration;

• 1 × Solis 5kW AC coupled inverter charge
• 1 × Fogstar Energy 48V 32kWh Battery

This install was for a young couple who had just moved into a five-bedroom detached, listed property. With high energy bills and no solar panels, they turned to Always Off-Peak for a solution.

The result: a 32kWh storage system that allows them to draw on cheap, off-peak energy around the clock, dramatically reducing bills and future-proofing their home.

Estimated ROI: 3 Years

The Always Off-Peak Approach

From large 3-phase installs to family homes with hefty energy demands, Always Off-Peak are showing how homeowners can slash their bills by pairing Fogstar Energy batteries with off-peak tariffs.

These systems don’t need solar to deliver results, and they’re proving one of the most straightforward ways for households to cut costs and achieve a rapid return on investment, often within just three years.

When talking about why Always Off-Peak chose Fogstar as their battery supplier of choice, they said; 

“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 profiles requirements, i.e. 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.”

To learn more about their projects, check out Always Off-Peak.