Energy bills aren’t getting any cheaper. That’s one of the main reasons more homeowners are looking at battery storage.

A home battery allows you to buy electricity when it’s at its lowest cost, store it, and use it later when prices rise. For many households, that can lead to significant savings. It also gives you more control over how and when you use electricity, rather than being completely reliant on the grid.

These are some of the questions we’re asked most often:

What is a home battery storage system?

At its simplest, a home battery stores electricity so you can use it later.

Modern battery systems do a lot more than that, though. The systems we install at OffGrid Pro continuously monitor electricity prices, household demand and battery levels. They automatically decide when to charge and when to discharge, making the most of cheaper electricity rates without you having to think about it.

If you have solar panels, the battery can store excess solar energy too. If you don’t have solar, that’s absolutely fine – the battery can still charge from the grid when rates are low.

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Is it worth installing a home battery?

For many homeowners, yes.

A home battery allows you to store electricity and use it when energy prices are highest. Combined with a suitable tariff, this can significantly reduce your electricity costs. The greatest savings are often seen in larger homes with higher energy consumption.

In addition to reducing bills, battery storage can provide backup power during outages and greater control over your household energy usage.

Can I have a home battery without solar panels?

Yes.

In fact, this is probably the biggest misconception we come across.

A lot of people assume batteries only make sense if you already have solar panels. That’s no longer the case. Modern battery systems can charge directly from the grid when electricity is cheapest and then power your home when prices increase.

For many households, that alone can create substantial savings.

How much can a home battery reduce my electricity bill?

Savings vary depending on your electricity usage, tariff and battery size.

Many OffGrid Pro customers achieve electricity bill reductions of 70% or more, with higher-consuming properties often seeing the greatest savings.

For example:

• One OffGrid Pro customer reduced their annual electricity bill from £7,205 to £1,544 – a saving of almost 79%.
• Another customer reduced their annual electricity costs from approximately £9,000 to £1,020 – a saving of around 89%.

These results were achieved through bespoke battery storage systems designed around each property’s energy consumption, tariff structure and usage patterns.

How much electricity does a household use per day in the UK?

According to Ofgem’s Typical Domestic Consumption Values, the average UK household uses approximately 2,700 kWh of electricity per year, which equates to around 7.4 kWh per day.

As a general guide:

• Low electricity usage: around 1,800 kWh per year, or approximately 5 kWh per day.
• Average electricity usage: around 2,700 kWh per year, or approximately 7.4 kWh per day.
• High electricity usage: around 4,100 kWh per year, or approximately 11.2 kWh per day.

Understanding your daily consumption is an important step when sizing a battery storage system.

What size battery do I need for my home?

The ideal battery size depends on:

• Your annual electricity consumption
• Your daily energy usage
• Your electricity tariff
• Whether you have solar panels
• Whether you require backup power

Every property is different, which is why battery storage systems should be designed around your specific energy requirements. We can help with that.

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Can I store electricity for later use at home?

Yes.

That’s exactly what a battery is designed to do.

The battery stores electricity when it’s available at a lower cost and then releases it later when your home needs it. Instead of buying electricity during expensive peak periods, you’re using energy you’ve already stored.

What is the best way to use off-peak electricity at home?

The most effective approach is usually to combine a battery with a time-of-use tariff.

Electricity can often be purchased at a much lower rate overnight. The battery charges during these cheaper periods and then powers the home throughout the day when rates are higher.

Without a battery, most households miss out on a lot of that benefit because they’re asleep when the cheapest electricity is available.

What are time-of-use electricity tariffs?

Not all electricity costs the same amount throughout the day.

Time-of-use tariffs offer cheaper rates at certain times, often overnight, and more expensive rates during periods of high demand.

Battery storage works particularly well with these tariffs because it allows you to buy electricity when it’s cheap and use it when it’s expensive.

That’s where many of the savings come from.

What is the payback period for home battery storage?

For many OffGrid Pro customers, battery storage delivers a return on investment within around five to six years.

The exact figure depends on factors such as electricity usage, tariff structure and system size. Homes with higher energy consumption often see the quickest returns because there is more opportunity to reduce expensive grid usage.

What happens during a power cut?

This is where battery storage offers benefits beyond saving money.

If the grid goes down, your home can continue running using the energy stored in your batteries, helping to keep lights, appliances and essential equipment powered.

For even greater resilience, systems can be integrated with solar panels and backup generators, ensuring power remains available when it’s needed most.