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I signed up with Tesla. I think someone on this forum tried to sign up directly by submitting an application to Eversource, but Eversource sent it to Tesla.
I have it in Backup mode, so reserve is 100%. But Powerwall has different algorithm when demand response is active, and the reserve for that event is not exposed in app. Once the event is over, Powerwall reverts back to the mode set in the app.