Many organisations are looking to electrify their own fleets, however, lack the available power capacity to charge many vehicles at once, especially at peak times. Battery storage can help mitigate some of this demand avoiding often costly new grid connections.
One question we get asked a lot is, how long can a battery installation like our E-STOR system charge EVs?
The short answer is that it depends – there’s a range of variables that need to be taken into consideration. However, battery energy storage is not a theoretical idea, our E-STOR system is a fully commercialised product. So, we can provide some real-life examples of how E-STOR works for EV charging hubs.
Example: a public charging hub
At Dundee in Scotland, we are providing two E-STOR 300/360 systems for the City Council’s charging hubs – one public and one private. The 300/360 stands for up to 360kWh of power stored in our E-STOR system and delivered at a rate of up to 300kW.
The innovative charging hubs combines solar PV arrays with our systems and a range of fast, rapid and ultra-rapid chargers.
On the side accessible to the public, it combines our E-STOR 300/360 with 22, 7kW chargers, two 50kW chargers and a 100kW charge point. E-STOR’s batteries are replenished by the solar array and it can also recharge from the grid if required.
With 25 chargers of varying sizes on site, the answer to “how long can E-STOR operate the chargers?” can significantly vary, too. Here are a few scenarios: