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All times are in local Freiburg, Germany time.


Monday, September 14, 2026

Room Aula
Room 1023
Room 1227
Room 1224
Room 1136
Room 1137
Room 1108
Prometheus Hall
Entrance Hall
8:30 - 16:30 IEA Experts Meeting: Task 70 IEA Experts Meeting: SHC Task 72 IEA Experts Meeting: SHC Task 73 IEA Experts Meeting: SHC Task 75 IEA Experts Meeting: Task Follow up LCA IEA Experts Meeting: HP P68
16:30 - 17:30 Solar Speed Networking
16:30 - 20:00
Registration
18:00 - 20:00
Welcome Reception: 30th Aniversary
Room Aula
Room 1023
8:30 - 16:30 IEA Experts Meeting: Task 70
16:30 - 17:30 Solar Speed Networking
16:30 - 20:00
18:00 - 20:00

Room 1227
Room 1224
8:30 - 16:30 IEA Experts Meeting: SHC Task 72 IEA Experts Meeting: SHC Task 73
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1136
Room 1137
8:30 - 16:30 IEA Experts Meeting: SHC Task 75 IEA Experts Meeting: Task Follow up LCA
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1108
Prometheus Hall
8:30 - 16:30 IEA Experts Meeting: HP P68
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00
Welcome Reception: 30th Aniversary

Entrance Hall
8:30 - 16:30
16:30 - 17:30
16:30 - 20:00
Registration
18:00 - 20:00

Room Aula
8:30 - 16:30
16:30 - 17:30 Solar Speed Networking
16:30 - 20:00
18:00 - 20:00

Room 1023
8:30 - 16:30 IEA Experts Meeting: Task 70
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1227
8:30 - 16:30 IEA Experts Meeting: SHC Task 72
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1224
8:30 - 16:30 IEA Experts Meeting: SHC Task 73
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1136
8:30 - 16:30 IEA Experts Meeting: SHC Task 75
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1137
8:30 - 16:30 IEA Experts Meeting: Task Follow up LCA
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Room 1108
8:30 - 16:30 IEA Experts Meeting: HP P68
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00

Prometheus Hall
8:30 - 16:30
16:30 - 17:30
16:30 - 20:00
18:00 - 20:00
Welcome Reception: 30th Aniversary

Entrance Hall
8:30 - 16:30
16:30 - 17:30
16:30 - 20:00
Registration
18:00 - 20:00


Tuesday, September 15, 2026


Room 1015
Room 1098
9:00 - 9:30
9:30 - 10:20
10:20 - 10:35
Coffee Break
10:35 - 11:35
11:35 - 12:45
12:45 - 13:45
Lunch Break
13:45 - 14:45
14:45 - 15:00
Break​
15:00 - 15:30
15:00 - 16:30 Sustainable Heat for Industrial Process II Thermal Energy Storage II
15:30 - 16:30
16:30 - 16:45
Break​​
16:45 - 17:30 Sustainable Heat for Industrial Process III Thermal Energy Storage III
17:30 - 18:45
19:00 - 20:00
20:00 - 23:00 Young ISES Get Together
sponsored by International Solar Energy Society ISES

Prometheus Hall
Entrance Hall
9:00 - 9:30
9:30 - 10:20
10:20 - 10:35
Coffee Break
10:35 - 11:35
11:35 - 12:45
12:45 - 13:45
Lunch Break
13:45 - 14:45 Poster Session I
14:45 - 15:00
Break​
15:00 - 15:30
15:00 - 16:30
15:30 - 16:30
16:30 - 16:45
Break​​
16:45 - 17:30
17:30 - 18:45
19:00 - 20:00 STSHC 50th Anniversary:
Reception and Social Gathering
20:00 - 23:00 Young ISES Get Together
sponsored by International Solar Energy Society ISES



Room 1015
9:00 - 9:30
9:30 - 10:20
10:20 - 10:35
Coffee Break
10:35 - 11:35
11:35 - 12:45
12:45 - 13:45
Lunch Break
13:45 - 14:45
14:45 - 15:00
Break​
15:00 - 15:30
15:00 - 16:30 Sustainable Heat for Industrial Process II
15:30 - 16:30
16:30 - 16:45
Break​​
16:45 - 17:30 Sustainable Heat for Industrial Process III
17:30 - 18:45
19:00 - 20:00
20:00 - 23:00 Young ISES Get Together
sponsored by International Solar Energy Society ISES

Room 1098
9:00 - 9:30
9:30 - 10:20
10:20 - 10:35
Coffee Break
10:35 - 11:35
11:35 - 12:45
12:45 - 13:45
Lunch Break
13:45 - 14:45
14:45 - 15:00
Break​
15:00 - 15:30
15:00 - 16:30 Thermal Energy Storage II
15:30 - 16:30
16:30 - 16:45
Break​​
16:45 - 17:30 Thermal Energy Storage III
17:30 - 18:45
19:00 - 20:00
20:00 - 23:00 Young ISES Get Together
sponsored by International Solar Energy Society ISES

Prometheus Hall
9:00 - 9:30
9:30 - 10:20
10:20 - 10:35
Coffee Break
10:35 - 11:35
11:35 - 12:45
12:45 - 13:45
Lunch Break
13:45 - 14:45 Poster Session I
14:45 - 15:00
Break​
15:00 - 15:30
15:00 - 16:30
15:30 - 16:30
16:30 - 16:45
Break​​
16:45 - 17:30
17:30 - 18:45
19:00 - 20:00 STSHC 50th Anniversary:
Reception and Social Gathering
20:00 - 23:00 Young ISES Get Together
sponsored by International Solar Energy Society ISES

Entrance Hall
9:00 - 9:30
9:30 - 10:20
10:20 - 10:35
Coffee Break
10:35 - 11:35
11:35 - 12:45
12:45 - 13:45
Lunch Break
13:45 - 14:45 Poster Session I
14:45 - 15:00
Break​
15:00 - 15:30
15:00 - 16:30
15:30 - 16:30
16:30 - 16:45
Break​​
16:45 - 17:30
17:30 - 18:45
19:00 - 20:00
20:00 - 23:00 Young ISES Get Together
sponsored by International Solar Energy Society ISES


Wednesday, September 16, 2026

Room Aula
Room 1010
9:00 - 9:45 Policy pull to make energy transition happen
9:45 - 10:00
Break​​​
10:00 - 11:00 Solar Thermal and PVT Collectors and Solar Loop Components I
11:00 - 11:30
Coffee Break​
11:30 - 12:45 Solar Thermal and PVT Collectors and Solar Loop Components II
12:45 - 13:45
Lunch Break​
13:45 - 14:45 IEA SHC Collaboration Groups
14:45 - 15:00
Break​​​​
15:00 - 16:30 Solar Thermal and PVT Collectors and Solar Loop Components III
16:30 - 16:45
Coffee Break​​
16:45 - 18:00 Solar Thermal and PVT Collectors and Solar Loop Components IV
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room 1015
Room 1098
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00 Sustainable Heating and Cooling Systems for Buildings II Thermal Energy Storage IV
11:00 - 11:30
Coffee Break​
11:30 - 12:45 Sustainable Heating and Cooling Systems for Buildings III Thermal Energy Storage V
12:45 - 13:45
Lunch Break​
13:45 - 14:45
14:45 - 15:00
Break​​​​
15:00 - 16:30 Energy Efficient Buildings I Thermal Energy Storage VI
16:30 - 16:45
Coffee Break​​
16:45 - 18:00 Energy Efficient Buildings II
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room 1009
Prometheus Hall
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​
11:30 - 12:45
12:45 - 13:45
Lunch Break​
13:45 - 14:45 Poster Session II
14:45 - 15:00
Break​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​
16:45 - 18:00 Solar Resources and Energy Meteorology I
18:00 - 18:30 Happy Hour
sponsored by Rothaus Brauerei
19:00 - 23:00
Conference Dinner at Markthalle

Entrance Hall
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​
11:30 - 12:45
12:45 - 13:45
Lunch Break​
13:45 - 14:45 Poster Session II
14:45 - 15:00
Break​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​
16:45 - 18:00
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room Aula
9:00 - 9:45 Policy pull to make energy transition happen
9:45 - 10:00
Break​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​
11:30 - 12:45
12:45 - 13:45
Lunch Break​
13:45 - 14:45 IEA SHC Collaboration Groups
14:45 - 15:00
Break​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​
16:45 - 18:00
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room 1010
9:00 - 9:45 Policy pull to make energy transition happen
9:45 - 10:00
Break​​​
10:00 - 11:00 Solar Thermal and PVT Collectors and Solar Loop Components I
11:00 - 11:30
Coffee Break​
11:30 - 12:45 Solar Thermal and PVT Collectors and Solar Loop Components II
12:45 - 13:45
Lunch Break​
13:45 - 14:45
14:45 - 15:00
Break​​​​
15:00 - 16:30 Solar Thermal and PVT Collectors and Solar Loop Components III
16:30 - 16:45
Coffee Break​​
16:45 - 18:00 Solar Thermal and PVT Collectors and Solar Loop Components IV
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room 1015
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00 Sustainable Heating and Cooling Systems for Buildings II
11:00 - 11:30
Coffee Break​
11:30 - 12:45 Sustainable Heating and Cooling Systems for Buildings III
12:45 - 13:45
Lunch Break​
13:45 - 14:45
14:45 - 15:00
Break​​​​
15:00 - 16:30 Energy Efficient Buildings I
16:30 - 16:45
Coffee Break​​
16:45 - 18:00 Energy Efficient Buildings II
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room 1098
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00 Thermal Energy Storage IV
11:00 - 11:30
Coffee Break​
11:30 - 12:45 Thermal Energy Storage V
12:45 - 13:45
Lunch Break​
13:45 - 14:45
14:45 - 15:00
Break​​​​
15:00 - 16:30 Thermal Energy Storage VI
16:30 - 16:45
Coffee Break​​
16:45 - 18:00
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Room 1009
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​
11:30 - 12:45
12:45 - 13:45
Lunch Break​
13:45 - 14:45
14:45 - 15:00
Break​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​
16:45 - 18:00 Solar Resources and Energy Meteorology I
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle

Prometheus Hall
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​
11:30 - 12:45
12:45 - 13:45
Lunch Break​
13:45 - 14:45 Poster Session II
14:45 - 15:00
Break​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​
16:45 - 18:00
18:00 - 18:30 Happy Hour
sponsored by Rothaus Brauerei
19:00 - 23:00
Conference Dinner at Markthalle

Entrance Hall
9:00 - 9:45
9:45 - 10:00
Break​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​
11:30 - 12:45
12:45 - 13:45
Lunch Break​
13:45 - 14:45 Poster Session II
14:45 - 15:00
Break​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​
16:45 - 18:00
18:00 - 18:30
19:00 - 23:00
Conference Dinner at Markthalle


Thursday, September 17, 2026

Room Aula
Room 1010
9:00 - 9:30 Planing the heating sector transformation
9:30 - 9:45 SHC Solar Awards
9:45 - 10:00
Break​​​​​
10:00 - 11:00 Sustainable and Solar Energy Transition I
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30 Sustainable and Solar Energy Transition II
12:30 - 13:30
Lunch Break​​
13:30 - 14:45 Initiatives Pitch
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00 Closing Ceremony
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1015
Room 1098
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00 Sustainable and Efficient Districts I Sustainable Energy Infrastructure and Electrification I
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30 Sustainable and Efficient Districts II Sustainable Energy Infrastructure and Electrification II
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30 Energy Efficient Buildings III
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1009
Room 1016
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30 Electrical Energy Storage & Hydrogen Solar Resources and Energy Meteorology II
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Prometheus Hall
Entrance Hall
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45 Poster Session III
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room Aula
9:00 - 9:30 Planing the heating sector transformation
9:30 - 9:45 SHC Solar Awards
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45 Initiatives Pitch
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00 Closing Ceremony
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1010
9:00 - 9:30 Planing the heating sector transformation
9:30 - 9:45 SHC Solar Awards
9:45 - 10:00
Break​​​​​
10:00 - 11:00 Sustainable and Solar Energy Transition I
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30 Sustainable and Solar Energy Transition II
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00 Closing Ceremony
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1015
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00 Sustainable and Efficient Districts I
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30 Sustainable and Efficient Districts II
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30 Energy Efficient Buildings III
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1098
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00 Sustainable Energy Infrastructure and Electrification I
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30 Sustainable Energy Infrastructure and Electrification II
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1009
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30 Electrical Energy Storage & Hydrogen
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Room 1016
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45
14:45 - 15:00
Break​​​​​​
15:00 - 16:30 Solar Resources and Energy Meteorology II
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Prometheus Hall
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45 Poster Session III
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES

Entrance Hall
9:00 - 9:30
9:30 - 9:45
9:45 - 10:00
Break​​​​​
10:00 - 11:00
11:00 - 11:30
Coffee Break​​​
11:30 - 12:30
12:30 - 13:30
Lunch Break​​
13:30 - 14:45 Poster Session III
14:45 - 15:00
Break​​​​​​
15:00 - 16:30
16:30 - 16:45
Coffee Break​​​​
16:45 - 18:00
18:00 - 20:00 70th ISES Aniversary: Farewell Apero
sponsored by International Solar Energy Society ISES


Friday, September 18, 2026

Tours
8:30 - 18:00 Friday Technical Tours
Tours
8:30 - 18:00 Friday Technical Tours

Tours
8:30 - 18:00 Friday Technical Tours


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