Classification
ETF - Fuel cells - general
29
ESB - Hydrogen energy
23
UHK - Traffic and environment - incl. automobile exhaust gas
10
EHA - Renewable energy sources
9
TKJ - Traffic
9
ETC - Energy conversion
6
E
5
TKH - Air flight, space flight
5
CNWK - Electric batteries
4
FJB - Electric materials
4
TEJ - Electric devices, mechanical devices, magnets, dielectrics
4
CNW - Electrochemical energy production and conversion
2
CXA - Coal and fossil fuel - chemistry and technology
2
CXX - Hydrogen production - chemistry and technology
2
EBA - Energy production, energy technology
2
ETA - Energy storage
2
EVB - Energy supply of Germany
2
EWA - Energy economy
2
EXA - Energy policy
2
U
2
CWSW - Membrane separation process
1
EVP - Energy models, energy system analysis
1
TKF - Power plants
1
UMGE - Carbon capture and storage (CCS)
1
UMGH - Gas cleaning
1