Defined term
Distributed energy resource
A distributed energy resource is a comparatively small generation, storage, demand-response, efficiency, thermal-storage, or similar resource connected on a distribution system or behind a customer meter.
Also known as DER
grid · Concept code GS-CONCEPT-059 · Last verified August 20, 2026
Evidence through 2020-09-28 · 0 sources have no source-event date
Content modified 2026-08-20
Definition and boundaries
Definition
A distributed energy resource is a comparatively small generation, storage, demand-response, efficiency, thermal-storage, or similar resource connected on a distribution system or behind a customer meter.
Applicable jurisdiction: US federal wholesale-market context; retail definitions vary
Definition claim verification: Verified August 20, 2026
In plain language
For Distributed energy resource, the controlling utility tariff, interconnection document, meter arrangement, and jurisdiction matter more than a generic national description.
What it is not
It is not a synonym for rooftop solar alone and it does not itself establish wholesale-market participation.
Decision context
Why it matters
The term covers multiple technologies and market or program definitions; identify the controlling tariff, interconnection rule, or market definition before applying eligibility claims.
Applicable jurisdiction: US federal wholesale-market context; retail definitions vary
Decision-context claim verification: Verified August 20, 2026
Information boundary
This page provides general educational context, not a site design, production guarantee, utility determination, contract interpretation, legal opinion, tax conclusion, or individualized financial advice. Verify property, equipment, utility, jurisdiction, program, and agreement details before acting.
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Learning navigation
Primary topic: Grid
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Primary sources
- Federal Energy Regulatory Commission: FERC Order No. 2222: Fact Sheet
Revision Published 2020-09-28 · Source event as of September 28, 2020 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026