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%.

Tesla Powerpack

Battery storage for small businesses

We specialise in battery solutions for smaller commercial clients, up to a limit of 250kWh sized systems.

Our recommended battery systems are Tesla Powerwall, Victron + BYD and SMA Sunny Tripower Storage.

why spirit installers

Why Spirit Energy?

  • 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 install at the smaller commercial scale, up to 250kWh battery systems.
  • 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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Areas we cover

We install within an approximate 30 mile radius of Reading, Berkshire, marked on the map below (click to zoom in):

Spirit install area map

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

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