A Sheffield company is claiming a world first with a range of industrial-size batteries that allow factories to go ‘off-grid’ when electricity prices spike.
Powerstar’s new system stores energy when it is cheap and allows firms to switch over completely at peak times.
The Ecclesfield company hopes it will be a hit with high energy users - such as steelworks - especially in the US.
Batteries can be charged through mains electricity or from green sources, such as solar panels or wind turbines.
The ‘Powerstar Virtue’ units come with the firm’s voltage optimsation equipment which ensures precisely the right amount of electricity is used at a premises, saving money.
The new products use any surplus to charge the batteries instead of sending it back to the grid.
MPs David Blunkett and Angela Smith were at the factory for the launch.
Boss Alex Mardapittas said the products were revolutionary.
“This breakthrough is expected to attract huge interest from the commercial sector attracted by the significant savings, flexibility and reliability.
“Grid operators and utility companies will also benefit from being able to provide a more efficient and effective electrical network with increased stability and no interruptions.
“Users can save by switching to the stored supply at any time they wish, as well as ensuring a constant and reliable energy supply.”
Parent company EMSc exports to 20 countries and employs more than 70 people.
Established in 2001, it moved to much large premises in Ecclesfield in 2013.
Last year it increased manufacturing capacity by 20 per cent and turnover by nine per cent.