Help reduce energy costs, support electrification and move your site's plans forward.
Bank surplus renewable energy on site. Use it when it matters.
The Sherwood FAB (Free Air Bank) uses air and water to store energy. It uses surplus renewable electricity to bank energy on site for later use, helping businesses make efficient use of renewables, expand electrification and reduce energy costs.
Renewable electricity can come from on site generation, the grid or both. The system is configured around your site's energy supply, demand and available connection.
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Solar and wind generate electricity when conditions allow, not according to your site's timetable. Your site can use on site generation, renewable electricity supplied through the grid or both.
Surplus renewable electricity drives compression in the FAB. Energy is banked at your site as compressed air and retained heat, ready for later use.
Retained heat warms the released air, which expands through an expander coupled to a generator to produce electricity. Use banked energy when demand rises, renewable generation falls or grid electricity is more expensive.
The technology is adiabatic compressed air energy storage (ACAES). We call our system the Free Air Bank, or FAB. It stores energy for later use; it does not create energy or require every site to have its own solar panels or wind turbines.
Build flexibility into the way your site uses energy
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Bank surplus renewable energy available to your site and use it later, when your business needs it.
Use banked energy during more expensive electricity periods. Assess the potential value against your tariffs, demand, storage losses and operating costs.
Explore how storage could help manage demand within your connection limits and support projects held back by energy constraints.
Plan for electric HGVs, vans, building services and industrial processes alongside your existing loads and future expansion.
Think building blocks, not a fixed end point
Configure the FAB around today's requirements, with a route to add storage capacity as your site develops.
More demand. New generation. Another phase. Keep your energy plans moving with your business.
Look beyond electricity alone. Explore whether heating, cooling or compressed air outputs could add value to your application, with a configuration designed around the outputs your site can use.
Modular concept · configuration depends on your site
Consider serviceability, operating needs and whole life value together
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Your FAB's service needs depend on how it is used and the local operating environment. Sherwood uses advanced telemetry to monitor the system remotely, matching servicing to actual use and operating conditions.
Assess the expected operating life alongside maintenance, component replacement, energy use and end of life options. Build the business case around your site's duty and requirements.
If resilience is a priority, identify critical loads, required duration and acceptable interruption. Any backup role needs a specifically designed and assessed configuration.
Explore the fit, the value and the next step for your site.
Understand how much energy you need, when you need it and the renewable electricity available through on site generation or your grid supply.
Explore layout, ground conditions, electrical integration and the operating environment. Assess how banked energy could help manage demand within your available connection.
Storage does not increase the physical capacity of the grid connection or guarantee that an upgrade can be avoided.
Assess opportunities to support grid balancing through reduced imports or exports of banked energy. Participation and potential revenues depend on connection limits, system capability and market arrangements.
Plan for changing electrical loads, useful additional outputs and potential expansion from the outset.
The right specification starts with your site. These are some of the details to establish before moving forward.
Explore more questions ↗︎Banking energy for later use can help shift electricity purchases away from expensive periods. The business case depends on your tariffs, available supply, demand pattern, system efficiency and operating costs. Savings should be assessed for your site rather than assumed.
Discuss any backup requirement as part of the system design. Suitability depends on critical loads, stored energy, power requirements, controls and electrical integration.
Energy storage alone does not guarantee an uninterrupted supply. Required response times and operating duration need to be confirmed for the proposed configuration.
Sherwood manages servicing through an operations and maintenance (O&M) contract. Remote monitoring informs a service approach tailored to your FAB's use and local operating conditions, rather than a one size fits all maintenance plan.
Consider the source of electricity used to charge the system, storage losses and the energy supply it replaces. Manufacturing, maintenance and end of life treatment also matter when assessing whole life impacts.
Discuss any heating, cooling or air quality benefits against the proposed configuration. These should be supported by relevant technical information rather than assumed for every site.
Modularity allows expansion to be considered from the outset. The practical route depends on your initial configuration, available space, connection and future power and energy requirements.
Explore what the FAB could mean for your business
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Plan around connection constraints, building electrification and changing occupier needs.
Explore commercial property ↗︎Bring refrigeration, electric HGVs, vans and last mile charging into one site energy strategy.
Explore the application ↗︎From manufacturing to public estates, explore how banked energy could support your site's demand, costs and electrification plans.
Discuss your application ↗︎Request the technical information you need and explore how the FAB could work for your site.
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