Why Commercial Solar and Battery Storage Are Better Together
With energy prices remaining unpredictable, businesses are looking beyond solar panels alone to maximise savings and improve energy resilience. While commercial solar PV is an excellent way to generate clean electricity, pairing it with battery storage can unlock even greater value.
Instead of exporting surplus electricity back to the grid immediately, battery storage allows businesses to store excess solar energy and use it when it’s needed most. This means greater control over energy costs, reduced reliance on the grid, and a stronger return on investment.
So how does battery storage actually work?
During the day, solar panels often generate more electricity than a business is using and so, without a battery, that excess energy is typically exported to the grid.
A battery storage system however, captures this surplus electricity and stores it for later use, such as:
- During the evening when solar panels are no longer generating power.
- At times when electricity prices are highest.
- During periods of increased business demand.
- As backup power for critical operations (depending on system design).
The benefits of combining solar and battery storage are vast, most importantly it:
- Maximises your investment in solar – One of the biggest advantages of battery storage is increasing the amount of self-generated electricity your business actually uses.
Rather than purchasing electricity from the grid after sunset or during cloudy periods, stored solar energy can continue powering your operations, helping you get more value from every kilowatt your solar panels produce.
- Reduces energy costs – as electricity prices often fluctuate throughout the day, battery storage enables businesses to use stored energy during expensive peak-rate periods, reducing the need to buy costly electricity from the grid.
For organisations with significant daytime and evening energy demands, this can result in substantial long-term savings.
- Improves energy security – Power interruptions can be costly, particularly for manufacturers, warehouses, data centres and businesses that rely on continuous operations.
Many battery systems can provide backup power for essential equipment during outages, helping minimise disruption and improve operational resilience.
- Lowers your carbon footprint – Every unit of solar energy your business uses reduces the need for electricity generated from fossil fuels.
By storing surplus renewable energy rather than relying on the grid later in the day, businesses can further reduce carbon emissions and make meaningful progress towards their sustainability and Net Zero goals
Is battery storage right for every business?
Not every commercial solar installation requires battery storage. The best solution depends on factors including:
- When your business uses electricity.
- How much excess solar energy your system is likely to generate.
- Your current electricity tariffs.
- Whether energy resilience is important to your operations.
- Your future growth plans.
A detailed energy assessment can determine whether battery storage will deliver a strong financial return for your site.
Commercial solar already delivers significant reductions in energy costs and carbon emissions. Adding battery storage takes those benefits even further by allowing businesses to use more of the electricity they generate, improve resilience and reduce exposure to rising energy prices.
As battery technology continues to advance and costs become increasingly competitive, more UK businesses are recognising that solar and battery storage work best as part of a complete energy strategy.
Thinking about commercial solar or battery storage?
At Square 4 Solar, we design bespoke commercial solar PV and battery storage systems tailored to your building, energy usage and long-term business goals. Whether you’re installing solar for the first time or looking to maximise the performance of an existing system, our team can help you identify the solution that delivers the greatest value.
