Engineering services · Annex 58 Task 1
Technologies
Aligned with IEA HPT Annex 58 Task 1 — Technologies: map commercially available and near-market high-temperature heat pumps, components, and working fluids before any purchase narrative. This page turns that state-of-the-art lens into an independent screening service.
Annex 58 Task 1 lens
Task 1 documents state-of-the-art systems and components for HTHP process heat—what exists now versus what is still R&D.
Supply temperature ambition
Annex 58 focuses on useful heat above ~100 °C toward ~200 °C bands where fossil fuel still dominates. Screening starts with sink temperature and lift—not a brand preference.
Systems and components
Compressors, heat exchangers, lubricants, and working fluids each have temperature ceilings. Task 1-style reviews separate catalogue claims from proven envelopes.
Official reading
Primary source: HPT Project 58 Task 1 report. Site reading guide: Annex 58 Task guide. Work continues under Project 68.
Technology map for projects
We translate Task 1 catalogues into a project-specific filter: lift, capacity, refrigerant class, and TRL.
Closed HTHP vs steam / MVR
Closed vapour-compression HTHPs and open steam recompression solve different interfaces—Task 1 inventories both families; we keep them distinct in shortlists.
Near-market vs deployable
Pilot-only architectures stay labelled as such. Capex decisions should not treat a lab prototype as a drop-in skid.
Advisory deliverables
Independent technology memo—not an OEM brochure collage.
Outputs
Shortlist with rejected options, envelope table, refrigerant / PED flags, and open questions for OEM RFQs.
Screening checklist
- Sink / source temperatures (min–design–max)
- Required lift and capacity band
- Working-fluid and site code constraints
- TRL / reference plants for each candidate
- Component temperature limits (oil, seals, HX)
- RFQ questions tied to Task 1 evidence gaps
Other heat-pump duties
Comfort and commercial refrigeration technology screens are shorter. Annex 58 depth applies to industrial process heat; other duties get a light callout only.
Quick FAQs
Is this a copy of Annex 58?
No. We cite Annex 58 as the public technology frame; the service is project-specific screening and RFQ hygiene.
Do you sell equipment?
No. Independent advisory—OEMs remain the suppliers.
Independent advisory. Annex 58 materials remain © their authors / HPT TCP. Not a substitute for codes, OEM manuals, or legal counsel.