Gwyddoniaeth Deunyddiau a Pheirianneg
Hydrogen
100%
Coke ovens
35%
Wind power
35%
Electricity
31%
Hydrogen storage
25%
Power markets
20%
Electrolysis
19%
Electric power distribution
19%
Fuel cells
19%
Renewable energy resources
17%
Solar energy
17%
Gases
15%
Purification
15%
Hydrogen production
15%
Hydrogen economy
15%
Maximum power point trackers
14%
Oxides
11%
Fossil fuels
10%
Adsorption
9%
Recovery
9%
Carbon
9%
Scheduling
8%
Active networks
8%
Adsorbents
8%
Phenols
8%
Impurities
7%
Network management
7%
Power management
6%
Hybrid vehicles
6%
Energy storage
6%
Gas emissions
6%
Hot Temperature
6%
Greenhouse gases
6%
Vacuum
5%
Life cycle
5%
Electric power systems
5%
Ffiseg a Seryddiaeth
coke
33%
ovens
30%
hydrogen
27%
electrolysis
17%
gases
17%
electricity
16%
purification
14%
recovery
10%
industrial wastes
9%
adsorbents
8%
carbon
8%
optimization
8%
refueling
8%
phenols
8%
hydrogen production
8%
oxides
8%
grids
7%
adsorption
7%
electric batteries
7%
solid oxide fuel cells
7%
cells
7%
fuel cells
7%
carbon dioxide
6%
synthesis gas
6%
vehicles
6%
stations
6%
greenhouses
6%
impurities
6%
climate change
5%
performance
5%
windpower utilization
5%
Gwyddorau Amgylcheddol a’r Ddaear
hydrogen
13%
energy storage
9%
electricity
8%
energy supply
7%
research and development
6%
physics
5%
economy
5%
