Defined term
Residual utility bill
A residual utility bill is the modeled electricity bill with the onsite system, calculated using the specified electricity rates and load. SAM reports bill-with-system results separately from the bill without the system.
Also known as remaining electric bill
economics · Concept code GS-CONCEPT-071 · Last verified September 29, 2026
Evidence through 2023-12-12 · 0 sources have no source-event date
Content modified 2026-09-29
Definition and boundaries
Definition
A residual utility bill is the modeled electricity bill with the onsite system, calculated using the specified electricity rates and load. SAM reports bill-with-system results separately from the bill without the system.
Review confirmed · Review due October 29, 2026
The previous review deadline was September 19, 2026. The missed interval remains unverified; the current review does not establish historical coverage.
The cited evidence supports this statement within the source’s stated scope. Its jurisdiction and source-event date limit its applicability to a particular project.
Applicable jurisdiction: US; bills and tariffs vary
Definition claim verification: Verified September 29, 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
For a modeled bill with a system, account for energy, demand, fixed and applicable minimum charges, together with credits and true-up payments allowed by the selected billing option. SAM distinguishes monthly minimum charges from an annual minimum charge.
Review confirmed · Review due October 29, 2026
The previous review deadline was September 19, 2026. The missed interval remains unverified; the current review does not establish historical coverage.
The cited evidence supports this statement within the source’s stated scope. Its jurisdiction and source-event date limit its applicability to a particular project.
Applicable jurisdiction: US; bills and tariffs vary
Decision-context claim verification: Verified September 29, 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.
Selector-derived public graph
Learning navigation
Primary topic: Finance
Broader topic
No public concepts recorded.
More specific topics
No public concepts recorded.
Related topics
No public concepts recorded.
Learn first
No public concepts recorded.
Builds toward
No public concepts recorded.
Primary sources
- National Renewable Energy Laboratory: System Advisor Model Help, Version2023.12.17
Source event as of December 12, 2023 · Ontology accessed September 29, 2026 · Ontology verified September 29, 2026