Integrate with the AutoGrid Flex (Uplight) DERMS REST API to enroll DER sites and trigger a VPP dispatch event

Steps

1. Obtain API credentials from the Uplight developer portal; authenticate using OAuth 2.0 client credentials flow to the token endpoint to get a bearer token with the derms:write scope
2. POST a site enrollment to /api/v1/sites with fields: utility_account_id, address, device_type (e.g., battery_storage), rated_kw, and program_id; confirm 201 Created with assigned site_id
3. Verify device telemetry ingestion by calling GET /api/v1/sites/{site_id}/telemetry and confirming recent power_kw and soc_pct readings are present
4. Create a dispatch event: POST to /api/v1/events with program_id, dispatch_kw, start_time (ISO 8601), and duration_minutes; receive event_id in the 202 Accepted response
5. Poll GET /api/v1/events/{event_id}/status until the state field transitions from SCHEDULED to ACTIVE to COMPLETED
6. Retrieve event performance summary from GET /api/v1/events/{event_id}/performance to obtain enrolled_kw, dispatched_kw, and achieved_kw for settlement reporting