Legal text for IEA HPT Annex 54

Addendum to Legal text for Annex54 – Extension Request – 073021


The IEA HPT Annex 54 Annual Report for 2020

The IEA HPT Annex 54 Annual Report for 2019


IIR-IEA Joint Workshop during The 6th IIR Conference on Thermophysical Properties and
Transfer Processes of Refrigerants, September 1, 2021.

Seven presentations were held by experts from the participating countries in the Annex. There were 16 attendees.

Presentations from September 2021 are:


IIR-IEA Joint Workshop during HFO Conference, June 16, 2021

Four presentations were held by experts from the participating countries in the Annex. There were 23 attendees.

Presentations from June 2021 are as follows:


Workshop and Experts’ Meeting for Annex 54 during the 13th IEA Heat Pump Conference, April 27, 2021

IEA HPT’s ANNEX54 organized a workshop for “Heat Pumps for Low -WP Refrigerants” at the 13th IEA Heat Pump Conference on 27th April. Five presentations were held by experts from the participating countries in the Annex. There were 42 attendees.

Presentations from the workshops during the 2021 IEA Heat Pump Conference – April 2021 are as follows:

Fifth expert meeting for ANNEX54, April 2021
Right after the workshop, the 5th expert meeting was held with 17 attendees from the participating member countries.


Workshop: ANNEX54 organized workshop during the 2020 GL conference and expert meeting after that.

IEA HPT’s ANNEX54 organized a workshop for “Heat Pumps for Low -WP Refrigerants” at the 2020 GL Conference on 7th December.  Six presentations were held by experts from the participating countries in the Annex. There were 46 attendees.

Presentations from the workshops during the 2020 GL conference – December 2020 are as follows:

Fourth expert meeting for ANNEX54, December 2020
Right after the workshop, the 4th expert meeting was held with 21 attendees from the participating member countries.


Low-GWP refrigerants including natural refrigerants are investigated for their safety and application in heat pumps.

Workshop ‘ IEA HPT’s Annex 54: Heat Pumps for Low-GWP Refrigerants

IEA HPT’s ANNEX54 organized two workshops for “Heat Pumps for Low -WP Refrigerants” at the 25th IIR Conference ICR 2019 in Montréal on 26th August.  Seven presentations were held by experts from the participating countries in the Annex and invited speaker from Germany.

Third expert meeting for ANNEX54, June 2020

Presentations from the workshops in Montreal – September 2019 are as follows:

After workshops, IEA HPT’s ANNEX54 organized joint meeting with IIR Commissions B1 and B2 attracting 45 participants.
Meeting agenda, minute and attendee list are as follows:


Presentation from the Kick off Meeting – January 2019: