Earth & Environmental Sciences
fuel cell
100%
ownership
82%
combined heat and power
32%
systems analysis
28%
project
27%
energy
21%
policy
16%
household
12%
economics
12%
power plant
11%
directive
11%
simulation
9%
society
8%
cost
7%
consumption
7%
document
7%
need
7%
energy policy
6%
analysis
5%
energy saving
5%
technological development
5%
Physics & Astronomy
fuel cells
51%
cogeneration
37%
Portugal
32%
systems integration
32%
Denmark
30%
France
22%
heat
17%
energy policy
9%
economics
6%
natural gas
5%
commercialization
5%
power plants
5%
electricity
5%
Engineering & Materials Science
Fuel cells
60%
Hot Temperature
26%
Economic analysis
24%
Power plants
18%
Electricity
12%
Solid oxide fuel cells (SOFC)
12%
Natural gas
9%
Hydrogen
8%
Energy policy
6%
Lead
5%