REM/Rate

quote-only (per-seat license, contact vendor) Engineer & Analyze

Desktop HERS rating and residential energy code compliance software, RESNET-accredited for ANSI/RESNET/ICC 301-2022 with an NREL hourly simulation engine, supporting Energy Star, ZERH, and IECC compliance for single-family homes -- over 1,000,000 homes rated.

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2.2 /5 composite score

The industry-standard HERS rating desktop tool with over 1M homes rated and active RESNET accreditation through December 2026 -- the 2025 release bundles the latest NREL engine (ANSI/RESNET/ICC 301-2022), but the product is desktop-only with no public API/CLI/MCP (RF2), pricing requires contacting the vendor (RF1), and XML export is a paid per-address add-on.

Situational

Rubric Scorecard

How we grade →

Criterion	Score	Evidence
Value for the price	2/5	quote-only (per-seat license, contact vendor)
Agent Friendliness	1/5	API: none (desktop application; XML export is a paid per-building-address add-on)
Ease of adoption	3/5	--
Portability & lock-in	3/5	3 file formats
Interoperability	2/5	4 integrations

Visit REM/Rate →

How we verified this: we checked REM/Rate against its live site and an independent source — resnet.us. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-06.

Evidence

File formats

Format	Direction	Support
XML	export	partial -- paid add-on per unique building address
PDF	export	full
REM/Rate project files	native	full

Integrations

RESNET registry Energy Star ZERH IECC compliance reporting

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