01
Calculate the optimal demand target
AI-EMS calculates the optimal demand target per charging site, weighing driver experience against site profitability.
Demand charge mitigation for DCFC hubs
Make your electricity
costs predictable
and sensible
evPower AI-EMS shapes connector and site power in real time, such that your demand charges drop while driver experience is maintained.
“Demand charges are the biggest single line on a new DCFC site's power bill. evPower gave us a way to cap site peaks without a hardware spend, and to do it without compromising the driver experience.”
The problem
One 15-minute peak sets the month's bill
Utilities often bill demand on a site's highest 15-minute power usage event. In some cases, a high demand event has a prolonged effect (a.k.a ratchet) for 6 to 12 months.
As a highest peak is many times coincidental, e.g. triggered by a one-time event of simultaneous charging, and is not related to the actual utilization on-site, the effect of one high demand peak might be detrimental.
Illustrative optimal-demand-target analysis.
Selecting the optimal demand target per site
The optimal demand target is different for every site and may change from month to month. Enforcing a demand target by limiting maximum power at the site can lead to a negative effect on driver experience.
Gross monthly profit as a function of driver experience score at different demand targets. A target that's too low hurts driver experience and costs sales; one that's too high inflates demand charges. The sweet spot is different for every site.
How it works
Up to
43%
Demand charge reduction
Up to
67%
Power boost beyond demand charge target
02
Enforce it continuously
AI-EMS continuously calculates and enforces the optimal demand target for each site independently, following the 15-minute demand window as it builds and allocating power across connectors to hold the peak at target.
03
Boost power above the target
To maximize driver experience and energy sales under the demand target, higher power levels are realized. Driver experience stays on par, and energy sales potential stays at its maximum.
Works with
Commercially deployed with leading chargers:
Installs remotely in minutes, with any charger and CMS.
Questions
FAQ
01How does evPower reduce demand charges?+
Our AI-EMS calculates an optimal monthly demand target per site and shapes connector and site power in real time so they conform to this target while maintaining driver experience. This results in lower demand charges.
02Do I need a battery on site?+
No. Demand charge mitigation runs on charger power shaping alone. When a battery is on site, AI-EMS can orchestrate it as well.
03What savings will I see at my charging site?+
Before any commitment, we run a free digital twin simulation on your historical session data and site configuration. The simulation shows the expected savings.
Free site assessment
Simulate your DCFC site for free
A 98% accurate digital twin runs a minute-by-minute simulation of your energy sales and costs, driver experience and demand charges.
sales@evpower.ai