The Hidden Cost: Demand Charges
While the TCO for BEVs looks favourable, realising these savings hinges on sophisticated energy management. For BEV fleets, the cost of electricity goes beyond a simple cents-per-kilowatt-hour rate. The critical threat is the electricity demand charge.
Demand charges are levied by network operators based on the highest peak power drawn from the grid during a specified window (e.g., 30 minutes). Unmanaged, simultaneous charging of multiple heavy vehicles creates a massive power spike. These demand charges can add thousands of dollars to a monthly electricity bill, negating the fuel savings and destroying the TCO case for electrification.
The TGE trial proves this point. Their “Depot of the Future” integrates chargers with solar and a 1 MW Battery Energy Storage System (BESS) to manage this demand. The BESS reportedly saved $7,300 in energy costs in its first hour of operation by storing cheap off-peak power for use during peak times.
This reality makes intelligent fleet management and energy management software a non-negotiable component of the transition.
At Orcoda, we understand that managing a mixed fleet (diesel, electric, hydrogen) while factoring in new constraints like charging times, payload impacts, and critically, managing electrical load to avoid demand charges, is essential to making the economics of ZEHVs work.