Question 1

1. What is demand response for EV charging?

Accepted Answer

Demand response is a utility or grid operator paying customers to reduce or shift electricity use during peak-demand or grid-emergency periods. For EV charging, an enrolled charging network responds to a declared event by curtailing or throttling sessions for a defined window, then resuming full power once the event ends, in exchange for a payment tied to the measured load reduction.

Question 2

2. Will drivers notice anything during a demand response event?

Accepted Answer

With dynamic load management handling the event, no session is cut off. Power is redistributed across every active charger, so drivers see a slightly slower charging rate for the event's duration — typically one to five hours — rather than an interruption. Departure-priority logic can also protect a specific vehicle's charging speed if it's leaving soon.

Question 3

3. How much capacity do I need to qualify for a demand response program?

Accepted Answer

Most US wholesale and utility-aggregator programs set the bar around 100 kW of enrolled, controllable load per site, with some day-ahead markets requiring an aggregate of 1 MW. A handful of DC fast chargers, or several Level 2 sites under one management platform, typically clears this without difficulty.

Question 4

4. What's the difference between OpenADR and OCPP?

Accepted Answer

OpenADR carries the demand-response event signal from the utility or grid operator to your charging management system. OCPP then carries that instruction from your system down to each individual charger as a smart-charging profile. Both are required together — OpenADR can't reach a charger directly, and OCPP has no awareness of grid conditions on its own.

Question 5

5. Are there demand response programs for EV charging in India?

Accepted Answer

A formal EV-specific DR aggregator market isn't live yet, but the Ministry of Power's Time-of-Day tariff mandate already rewards off-peak charging with 10–20% lower rates nationally, and early pilots — including a BSES Yamuna–Fortum Charge & Drive project that cut EV charging cost roughly 13% — show the model working at the distribution-utility level today.

openadr

EV Charging Demand Response Participation: A CPO’s Playbook