Modular Energy Storage Systems for Home and Commercial Applications.
Electricity tariffs are climbing and unpredictable. Businesses with no storage absorb every price spike and peak-demand charge with no way to respond.
Commercial solar is common, but without storage, surplus generation is exported at low value. A BESS turns that surplus into dispatchable on-site energy.
Adding EV chargers or equipment demands more from the incoming supply. A battery buffer adds charging capacity without costly grid connection upgrades.
Power outages are a growing concern. Businesses increasingly require backup capability that goes beyond a UPS and can sustain loads for meaningful durations.
The Vault Series is built around a bi-directional inverter that intelligently connects solar generation, grid supply, battery storage, and the building's loads. Power can flow in both directions across all connections — the system optimises continuously for cost, reliability, or resilience depending on configuration.
Excess generation is captured and stored rather than exported. The inverter prioritises solar charging and dispatches stored energy when generation drops.
The grid acts as a charging source and supply backstop. Charge off-peak. Avoid the grid during demand peaks. Reduce both energy and capacity costs.
Modular Vault Series packs store energy at the voltage and capacity required. Stack in series for voltage. Stack in parallel for capacity. Or combine both.
The inverter supplies power from whichever source is optimal at that moment — solar, battery, or grid. All transitions are seamless to the building.
Peak shaving, demand charge reduction
Discharge during peak tariff windows. Charge overnight or from solar. Reduce energy bills without changing how the site operates.
Self-consumption, zero-export
Capture surplus solar generation that would otherwise be exported at low value. Deploy it during high-demand periods — on-site, at full value.
Buffer battery, no grid upgrade
Add EV charging capacity without triggering a grid connection upgrade. The BESS buffers peak demand from the chargers — absorbing spikes the grid cannot sustain.
Critical load protection
Maintain power to critical systems during outages. Configurable runtime based on load and battery capacity deployed.
Value-add, future-ready
New builds and retrofits can integrate BESS to meet energy performance targets, reduce operating costs, and future-proof the asset.
The Vault Series is available to strategic partners as a fully configurable, white-label energy storage platform. As an ODM manufacturer, Weidon gives partners genuine control over how the product is specified, branded, and deployed — batch by batch.
A certified, credible BESS product to specify and deploy for home and commercial clients.
A co-branded storage offering to pair with solar projects at commercial or industrial scale.
Specifiable at scale - consistent product, consistent performance, across a portfolio.
European market compliance
UK market compliance
Lithium battery transport safety
Stationary storage safety — roadmap