1. Transportation
1.1. Marine
1.1.1. Liquid
1.1.1.1. Ammonia
1.1.1.2. H2
1.1.2. Gas
1.1.2.1. H2
1.2. Land
1.2.1. Pipeline
1.2.1.1. New pipelines
1.2.1.2. Retrofitting existing pipelines
1.2.2. Rail
1.2.3. Trucking
2. Storage
2.1. Liquid
2.1.1. Fuel Cell
2.1.2. H2
2.1.3. Ammonia
2.2. Gas
2.2.1. Sequestration
2.3. Physical-based
2.3.1. Compressed gas
2.3.2. Cold/cryo compressed
2.3.3. Liquid H2
2.4. Material based
2.4.1. Adsorbent
2.4.2. Liquid organic
2.4.3. Interstitial hydride
2.4.4. Complex hydride
2.4.5. Chemical hydrogen
3. P2G
4. Supply
4.1. Green Hydrogen
4.1.1. Electrolysis
4.1.1.1. Wind
4.1.1.1.1. PEM
4.1.1.1.2. Alkaline
4.1.1.2. Solar
4.1.1.2.1. PEM
4.1.1.2.2. Alkaline
4.1.1.3. Electrolyzer Companies
4.1.1.3.1. NEL
4.1.1.3.2. ITM Power
4.1.1.3.3. Plug Power
4.1.1.3.4. Cummins (Hydrogenics)
4.2. Yellow Hydrogen
4.2.1. Grid Electricity
4.3. Grey Hydrogen
4.3.1. SMR
4.4. Blue Hydrogen
4.4.1. SMR+CCUS
4.4.1.1. Coal
4.4.1.2. Oil
4.4.1.3. Nat gas
4.4.1.4. CCS
4.5. Pink Hydrogen
4.5.1. Nuclear
4.6. 'Clear Hydrogen'
4.6.1. In-Situ Reforming (?)
4.6.1.1. Proton
4.7. Turquoise Hydrogen
4.7.1. Methane Pyrolysis
4.7.1.1. Monolith
5. Demand
5.1. Industrial Feedstock
5.1.1. Steelmaking
5.1.1.1. Pipeline industry
5.1.1.1.1. Tenaris
5.1.2. Cement making
5.1.3. Glass??
5.2. Commercial Applications
5.2.1. Heating
5.2.2. Power (?)
5.2.3. Fuel cell equipment
5.2.4. Backup power
5.3. Chemical Feedstock
5.3.1. Ammonia
5.3.1.1. Fertilizers
5.3.2. Methanol
5.3.3. Refining
5.4. Transportation
5.4.1. Road
5.4.1.1. Heavy duty trucking
5.4.1.2. Buses
5.4.1.3. Passenger FCEVs
5.4.1.4. Refueling Stations
5.4.1.5. H2 Fuel Cell Companies
5.4.1.5.1. Nikola Motor Company
5.4.1.5.2. Ballard Power Systems
5.4.1.5.3. Hexagon
5.4.2. Marine
5.4.2.1. Consumer
5.4.2.2. Commercial
5.4.3. Rail
5.5. Residential
5.5.1. Heating
5.5.1.1. Nat Gas Blending
5.5.1.1.1. Enbridge
5.5.1.1.2. ATCO
5.5.2. Power (?)
5.6. Grid Services
5.6.1. Storage
5.6.1.1. Enbridge