With such huge sums being discussed, it makes sense to look at other options, and this is where battery energy storage systems (BESS) can come into their own. As the name suggests, a BESS is a bank of batteries that can act as an energy reservoir, making them ideal for these EV charging scenarios.
In this use case, the BESS draws down energy at a rate that is well within the grid’s capabilities. It stores this energy and can then provide it as required, at much faster rates, such as when a truck plugs into a 150kW charger. Once that truck moves on, and the charger is dormant again, the BESS reverts to replenishing its batteries from the grid, ready for the next vehicle.
In fact, BESS is already a proven solution in electric car and van charging, deployed across Europe at depots and charging hubs to increase on-site power availability. BESS can often be a quicker and much more cost-effective alternative to grid upgrades. The only difference for high-power chargers is that they require bigger energy storage solutions. However, systems like E-STOR by Connected Energy are modular, so they are ideal for these applications.
BESS can help avoid expensive DNO upgrades now, while the modularity of systems like E-STOR enables you to futureproof your sites for when 1MW chargers become more mainstream.