Commercial power rates are much more variable. Large users are billed based on half hourly rates so are directly exposed to wholesale fluctuations. I'm sure the

Commercial power rates are much more variable. Large users are billed based on half hourly rates so are directly exposed to wholesale fluctuations. I'm sure their fixed rate charging offer includes a forecasting and trading module that makes decisions about when to charge if there is any fleet flexibility. So a vehicle that passes through the depot at 60% charge during a low power price period and which has schedule slack might charge but not if the power price is currently very high. The degree to which power price fluctuations can be used depends on how much control you have over charging time. If you run your vehicles down to 20% and they then have a fixed time slot in which they must charge before returning to service, then obviously you're just a permanent price-taker and must simply put up with it. Capital costs are currently sufficiently higher than charging costs that strategically over-provisioning yourself with fleet in order to reduce your average charging cost is not worth the money.