Propane Tank

• 1000 gallon propane tank - used at $1000, weighs 1700 lb empty.
• Tank empty weights - [1]. 870 lb for 500 gal.
• 500 gal is 1.9 cu m.
• 1 cu m of hydrogen is 82 grams
• Normal propane tank pressure is up to 200 psi - [2]
• 200 psi is 13.6 atm
• A 500 gal propane tank can store 1.1 kg of hydrogen. Thiis is 1.1 gallon gasoline equivalent.