Xcel Energy · Rate Limits
Xcel Energy Rate Limits
Xcel Energy does not publish numeric rate limits for its Green Button Connect My Data (ESPI) or IEEE 2030.5 endpoints on the public-facing developer portal. The portal at developer-apim.aws.xcelenergy.com requires registration; rate-limit policy is gated behind that onboarding. ESPI is designed for batched daily data pulls rather than high-frequency reads.
2 Limits
Rate LimitingEnergy DataGreen ButtonUtility
Limits
ESPI / Green Button Connect data feed (numbers not publicly documented) third-party-provider
see Xcel Energy developer portal after onboarding
Green Button Connect data is published as periodic ESPI-formatted feeds rather than per-call resource fetches; throughput is governed by the customer-authorized data window and Xcel's batch-publishing schedule.
IEEE 2030.5 local smart-meter endpoint meter
see IEEE 2030.5 specification and Itron Gen 5 Riva meter limits
IEEE 2030.5 is a local, customer-network protocol; per-meter request rates are bound by the meter hardware (Itron Gen 5 Riva) rather than a centralized Xcel quota.
Policies
Onboarding required
Public rate-limit numbers are not published; third parties must complete Xcel's data-recipient onboarding to receive the limits document.
ESPI batch model
Green Button Connect uses a publish-and-fetch model rather than transactional reads; clients should follow ESPI's NotificationLink / SubscriptionLink polling pattern.
Backoff
Standard guidance is exponential backoff with jitter on HTTP 429 / 503 responses.