Solar Hydrogen Fueling Station: Difference between revisions
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*Given 50 kWhr requirement for hydrogen generation, with 60% efficiency electrolyzer. See [[Hydrogen Production]] | *Given 50 kWhr requirement for hydrogen generation, with 60% efficiency electrolyzer. See [[Hydrogen Production]] | ||
**We get 55 cents per kg hydrogen! That assumes cost of electrolyzer is nil. | **We get 55 cents per kg hydrogen! That assumes cost of electrolyzer is nil. | ||
*Missing link here is power electronics - so this is what needs to be done from an SBIR grant. | |||
{{Hint|Highlight: '''Cost of electrolyzer is 50 cents per kg H2 [https://www.energy.gov/eere/fuelcells/doe-technical-targets-hydrogen-production-electrolysis]. If we believe this figure, then the distributed production route yields 1/3 the cost (55 cents vs $1.6), adding 17 cents to the 55 cent OSE production cost of hydrogen'''. The OSE cost of hydrogen production is thus 72 cents per kg, not counting compression/storage. With compression, it is 2/3 more - or a total of $1.2 per kg.}} | |||
=Links= | =Links= | ||
*[[Solar Hydrogen Production]] | *[[Solar Hydrogen Production]] | ||
Revision as of 04:40, 1 August 2021
- First one in the world - in Sweden? - [1]
- Techno-economic analysis states that cost of production of solar hydrogen is $9/kg - [2]
Calculations
- 36 cent/kW panel costs at sunelec.com
- Use bus wire, 4-0, at $1/ft - for a few hundred dollar distribution cost to homes, using local 480 DC to 120 AC/240 AC inverters
- Keeps cost down to about $5k for 10kW, though real cost in Seed Eco-Home 1 was $1/W installed (much lower than $3 industry standard)
- Cost of electricity - 20 years * 365 * 6 * 10kW = 438MW hrs for $5k is 1.1 cents/kWhr. And life will be about 2x this for PV panels.
- Given 50 kWhr requirement for hydrogen generation, with 60% efficiency electrolyzer. See Hydrogen Production
- We get 55 cents per kg hydrogen! That assumes cost of electrolyzer is nil.
- Missing link here is power electronics - so this is what needs to be done from an SBIR grant.
Hint: Highlight: Cost of electrolyzer is 50 cents per kg H2 [3]. If we believe this figure, then the distributed production route yields 1/3 the cost (55 cents vs $1.6), adding 17 cents to the 55 cent OSE production cost of hydrogen. The OSE cost of hydrogen production is thus 72 cents per kg, not counting compression/storage. With compression, it is 2/3 more - or a total of $1.2 per kg.