Energy Storage

Commercial Batteries

Battery icon (2)

Why battery storage?

  • UPS backup
  • TRIAD charge avoidance
  • Earn income from the grid
  • 3-8 year payback
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Discover commercial energy storage

Cost effective energy storage has arrived! Your business can:

  • store electricity from solar panels for later use on site;
  • reduce peak electricity costs by avoiding 'time-of-use' surcharges such as TRIAD charges (TNUoS) and DUoS;
  • earn income from support services like firm frequency regulation and capacity market payments to the National Grid;
  • install a reliable commercial UPS battery backup (replacing diesel generators);
  • avoid costly grid upgrades e.g. to support EV charger rollout;
  • reduce its carbon footprint by minimising transmission losses (when used with on site generation) and eliminating further grid investment in fossil fuel generation.

The typical payback time for a commercial battery storage system is around 5 years, with IRR% over 15 years running at 5% - 20%.

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Battery storage funding

We work closely with financiers and can offer funded energy storage solutions to high electricity users with:

  • an import connection sized at 1000kVa plus;
  • a minimum base load of 500kW and / or potential for export connection;
  • a long-term (10-15 year) intention to utilise premises (and maintain current load).

Effectively the investment fund retains ownership of the battery to earn grid income, while you benefit from significantly reduced TRIAD and DUoS charges, and possibly a commercial UPS battery backup.

why spirit installers

Why Spirit?

  • We can design, install and maintain a complete solution including low voltage switchgear, converters, batteries and battery management systems. We can integrate with solar, wind and EV chargers.
  • We work with energy storage manufacturers, aggregators and other providers to optimise the solution that we provide, whether on-grid or off-grid.
  • We are not tied to any one technology or manufacturer.
  • We offer funded energy storage solutions, with access to a range of financiers to suit balance sheet and regulatory requirements.
  • We are techies, paying attention to the detail. And we are passionate about the technology. Our vision for the future is for every building to have on-site power generation and storage, creating a grid of interconnected micro power plants. Our mission is to make that future happen faster.
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Commercial Energy Storage - Spirit Energy

Areas we cover

We install within an approximate 100 mile radius of Reading, Berkshire, marked on the map below:


Call us on 0118 951 4490 to discuss your project, or send in your plans for a free quotation.

Learn more

Battery funding fact sheet


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