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US ENERGY STAR · NTEP · CTEP

Certification · United States

US ENERGY STAR · NTEP · CTEP

Efficiency and legal-for-trade metering for the US market.

ENERGY STAR · NTEP · CTEPTested in China — no overseas shipping
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ENERGY STAR · NTEP · CTEP

Product scope

ENERGY STAR · NTEP · CTEP · 2

Standards

Certification basis2

  • ENERGY STAR EVSE V1.2
  • NIST HB 44 §3.40

Steps

From sample to certificate

  1. 01 Requirements
  2. 02 Samples
  3. 03 Testing
  4. 04 Report
  5. 05 Certificate

Free resources

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A PDF guide from our engineers — the route, the tests and the deadlines in one place.

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White paperPDF · 4 pages · Edition 2026-10

UL 9540A after the 6th edition: fire testing for battery energy storage

From cell to installation, and now large-scale fire testing: what the 5th (2025) and 6th (2026) editions of UL 9540A change, how NFPA 855-2026 uses the results, and how to plan a test programme that survives the new rules.

GuidePDF · 4 pages · Edition 2026-10

US grid interconnection for inverters and storage: UL 1741 SB and IEEE 1547

IEEE 1547-2018, the IEEE 1547.1-2020 tests, UL 1741 Supplement SB listings, California Rule 21 and IEEE 2030.5 communication — what an inverter or PCS needs to connect to US grids.

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FAQ

What do NTEP and CTEP cover?

NTEP is the US national type evaluation for commercial measuring devices; CTEP is California’s programme.

Is ENERGY STAR testing available?

Yes, at an EPA-recognized laboratory.

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