Defined term
Tiered electricity rate
A tiered electricity rate applies different energy prices to defined blocks of electricity consumption within a billing period.
Also known as inclining block rate
grid · Concept code GS-CONCEPT-063 · Last verified August 20, 2026
Definition and boundaries
Definition
A tiered electricity rate applies different energy prices to defined blocks of electricity consumption within a billing period.
Applicable jurisdiction: US; rate schedules vary
Definition claim verification: Verified August 20, 2026
In plain language
For Tiered electricity rate, the controlling utility tariff, interconnection document, meter arrangement, and jurisdiction matter more than a generic national description.
What it is not
It is not automatically a time-of-use rate because tiers can depend on quantity rather than time.
Decision context
Why it matters
Block sizes, direction, season, baseline, time period, customer class, minimums, and solar billing treatment must come from the actual tariff.
Applicable jurisdiction: US; rate schedules 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.
Concept relationships
Broader concepts
- Electricity pricingPublished conceptTiered electricity rate is a more specific concept under Electricity pricing
Affects
- Payback periodPublished conceptTiered electricity rate can affect how Payback period is evaluated
Primary sources
- U.S. Department of Energy: Evaluating Your Utility Rate Options
Revision Published 2020-05-13 · Source event as of May 13, 2020 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026
- National Action Plan for Energy Efficiency (U.S. EPA and U.S. Department of Energy): Customer Incentives for Energy Efficiency Through Electric and Natural Gas Rate Design
Revision National Action Plan for Energy Efficiency · September 2009 · Source event as of September 1, 2009 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026
What to do next
- Open the related GeoStellar guideNext step
- Return to the Solar Energy WikiNext step
- Review electricity-rate dataNext step