Defined term
Residual utility bill
A residual utility bill is the utility bill that remains after the applicable effects of onsite generation, storage, credits, and tariff rules are applied for a billing period.
Also known as remaining electric bill
economics · Concept code GS-CONCEPT-071 · Last verified August 20, 2026
Definition and boundaries
Definition
A residual utility bill is the utility bill that remains after the applicable effects of onsite generation, storage, credits, and tariff rules are applied for a billing period.
Applicable jurisdiction: US; bills and tariffs vary
Definition claim verification: Verified August 20, 2026
In plain language
Use Residual utility bill only after the cash-flow perspective, timing, contract structure, included costs, and omitted items are made explicit.
What it is not
It is not necessarily zero when annual solar production equals annual household consumption.
Decision context
Why it matters
Fixed, energy, demand, minimum, tax, adjustment, subscription, credit, and true-up components must be modeled from the actual rate and usage data.
Applicable jurisdiction: US; bills and tariffs 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
Affects
- Payback periodPublished conceptResidual utility bill can affect how Payback period is evaluated
Primary sources
- National Renewable Energy Laboratory: System Advisor Model Help
Revision System Advisor Model 2023.12.17 help · Source event as of December 17, 2023 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026
- 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
What to do next
- Open the related GeoStellar guideNext step
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