Open Source PV System - Revision history

Marcin at 14:57, 8 April 2026

2026-04-08T14:57:06Z

← Older revision		Revision as of 14:57, 8 April 2026
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	{{Hint\|Design for 2022 build is at [[Seed Eco-Home PV System 2022]]}} =December 2017 - Completion Walk-Through=		{{Hint\|Design for 2022 build is at [[Seed Eco-Home PV System 2022]]}}

			=December 2017 - Completion Walk-Through=
	*After testing various loads including internet, lighting, washer, dryer, hydronic pumping, water pumping, macerator lift pump, computers, refrigerator, freezer, vaccuum cleaner, microwave oven, cutoff saw and power tools, and other various appliances - the working system is this:		*After testing various loads including internet, lighting, washer, dryer, hydronic pumping, water pumping, macerator lift pump, computers, refrigerator, freezer, vaccuum cleaner, microwave oven, cutoff saw and power tools, and other various appliances - the working system is this:

Marcin: /* Links */

2025-09-18T19:27:40Z

Links

← Older revision		Revision as of 19:27, 18 September 2025
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	*[[Solar Hydrogen]]		*[[Solar Hydrogen]]
	*[[Hydrogen Production]]		*[[Hydrogen Production]]
			*[[PV Sourcing]]
	[[Category: Seed Eco-Home]] [[Category: Solar]]		[[Category: Seed Eco-Home]] [[Category: Solar]]

Marcin: /* Temperate Zone Case: OSE Headquarters Results */

2024-05-27T04:54:42Z

Temperate Zone Case: OSE Headquarters Results

← Older revision		Revision as of 04:54, 27 May 2024
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	Take 20 years 3kW -> 131,000 kwhrs.		Take 20 years 3kW -> 131,000 kwhrs.
	*'''Conclusion 1: For $3000, we get 131,000 kwhrs, or a cost of 2.3 cents per kWhr.'''		*'''Conclusion 1: For $3000, we get 131,000 kwhrs, or a cost of 2.3 cents per kWhr.'''
	*'''Conclusion 2: If extend to 50 year life with nearly double the electricity, decreasing 0.5% per year - we get down to about 1.2 cents per kWhr. This is close to ''free''. ''' See [[Lifetime of Solar Cells]].		*'''Conclusion 2: If extend to 50 year life with nearly double the electricity, decreasing 0.5% per year - we get down to about 1.2 cents per kWhr. This is close to ''free''. ''' See [[Lifetime of Solar Cells]] and [[Minimum Cost Solar]].

	==Sahara Case==		==Sahara Case==

Eric: Added a Category to the Page

2022-11-13T01:56:14Z

Added a Category to the Page

← Older revision		Revision as of 01:56, 13 November 2022
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	*[[Hydrogen Production]]		*[[Hydrogen Production]]

	[[Category:Seed Eco-Home]]		[[Category: Seed Eco-Home]] [[Category: Solar]]

Marcin at 18:55, 11 November 2022

2022-11-11T18:55:45Z

← Older revision		Revision as of 18:55, 11 November 2022
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	{{Hint\|Design for 2022 build is [~~https://docs.google.com/presentation/d/1jRwADE9tkk9A0Y71_JJ2KlpxmCiU2fiXvOWPrgnApOo/edit#slide=id.g158b5b2123a_0_1 here~~]}} =December 2017 - Completion Walk-Through=		{{Hint\|Design for 2022 build is at [[Seed Eco-Home PV System 2022]]}} =December 2017 - Completion Walk-Through=
	*After testing various loads including internet, lighting, washer, dryer, hydronic pumping, water pumping, macerator lift pump, computers, refrigerator, freezer, vaccuum cleaner, microwave oven, cutoff saw and power tools, and other various appliances - the working system is this:		*After testing various loads including internet, lighting, washer, dryer, hydronic pumping, water pumping, macerator lift pump, computers, refrigerator, freezer, vaccuum cleaner, microwave oven, cutoff saw and power tools, and other various appliances - the working system is this:

Marcin at 18:55, 11 November 2022

2022-11-11T18:55:15Z

← Older revision		Revision as of 18:55, 11 November 2022
Line 1:		Line 1:
	=December 2017 - Completion Walk-Through=		{{Hint\|Design for 2022 build is [https://docs.google.com/presentation/d/1jRwADE9tkk9A0Y71_JJ2KlpxmCiU2fiXvOWPrgnApOo/edit#slide=id.g158b5b2123a_0_1 here]}} =December 2017 - Completion Walk-Through=
	*After testing various loads including internet, lighting, washer, dryer, hydronic pumping, water pumping, macerator lift pump, computers, refrigerator, freezer, vaccuum cleaner, microwave oven, cutoff saw and power tools, and other various appliances - the working system is this:		*After testing various loads including internet, lighting, washer, dryer, hydronic pumping, water pumping, macerator lift pump, computers, refrigerator, freezer, vaccuum cleaner, microwave oven, cutoff saw and power tools, and other various appliances - the working system is this:

Marcin: /* Hydrogen Production */

2022-06-09T19:19:53Z

Hydrogen Production

← Older revision		Revision as of 19:19, 9 June 2022
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	*Hydrogen production takes 41 kWhr/kg by electrolysis. Hydrogen energy equivalence is 1 kg hydrogen to 1 gallon gasoline equivalent when burned in internal combustion engines.		*Hydrogen production takes 41 kWhr/kg by electrolysis. Hydrogen energy equivalence is 1 kg hydrogen to 1 gallon gasoline equivalent when burned in internal combustion engines.
	*The cost of hydrogen production is $4 per kg if we consider 10 cent per kwhr standard costs of commercial PV energy. But, it is 40 cents per gallon equivalent if we use open source photovoltaics like in our Seed Eco-Home.		*The cost of hydrogen production is $4 per kg if we consider 10 cent per kwhr standard costs of commercial PV energy. But, it is 40 cents per gallon equivalent if we use open source photovoltaics like in our Seed Eco-Home.
	**This cost, see above, is 1/5th of the grid cost at about 2 cents per kwHr. Thus, 80 cent cost of electricity for gasoline gallon equivalent (1 kg hydrogen = 1 gal gasoline). See more details at Hydrogen Production.		**This cost, see above, is 1/5th of the grid cost at about 2 cents per kwHr. Thus, 80 cent cost of electricity for gasoline gallon equivalent (1 kg hydrogen = 1 gal gasoline). See more details at [[Hydrogen Production]].
	*This means that we need data right now - on a full system from PV to hydrogen engines.		*This means that we need data right now - on a full system from PV to hydrogen engines.
	*Can start with industrial hydrogen bought off the shelf, with multifuel test engines via the [[Engine Construction Set]].		*Can start with industrial hydrogen bought off the shelf, with multifuel test engines via the [[Engine Construction Set]].

Marcin: /* Hydrogen Production */

2022-06-09T19:19:25Z

Hydrogen Production

← Older revision		Revision as of 19:19, 9 June 2022
Line 25:		Line 25:
	*Hydrogen production takes 41 kWhr/kg by electrolysis. Hydrogen energy equivalence is 1 kg hydrogen to 1 gallon gasoline equivalent when burned in internal combustion engines.		*Hydrogen production takes 41 kWhr/kg by electrolysis. Hydrogen energy equivalence is 1 kg hydrogen to 1 gallon gasoline equivalent when burned in internal combustion engines.
	*The cost of hydrogen production is $4 per kg if we consider 10 cent per kwhr standard costs of commercial PV energy. But, it is 40 cents per gallon equivalent if we use open source photovoltaics like in our Seed Eco-Home.		*The cost of hydrogen production is $4 per kg if we consider 10 cent per kwhr standard costs of commercial PV energy. But, it is 40 cents per gallon equivalent if we use open source photovoltaics like in our Seed Eco-Home.
	**This cost, see above, is 1/5th of the grid cost at about 2 cents per kwHr. Thus, 80 cent cost of electricity for gasoline gallon equivalent (1 kg hydrogen = 1 gal gasoline)		**This cost, see above, is 1/5th of the grid cost at about 2 cents per kwHr. Thus, 80 cent cost of electricity for gasoline gallon equivalent (1 kg hydrogen = 1 gal gasoline). See more details at Hydrogen Production.
	*This means that we need data right now - on a full system from PV to hydrogen engines.		*This means that we need data right now - on a full system from PV to hydrogen engines.
	*Can start with industrial hydrogen bought off the shelf, with multifuel test engines via the [[Engine Construction Set]].		*Can start with industrial hydrogen bought off the shelf, with multifuel test engines via the [[Engine Construction Set]].

Marcin: /* Hydrogen Production */

2022-06-09T19:19:07Z

Hydrogen Production

← Older revision		Revision as of 19:19, 9 June 2022
Line 25:		Line 25:
	*Hydrogen production takes 41 kWhr/kg by electrolysis. Hydrogen energy equivalence is 1 kg hydrogen to 1 gallon gasoline equivalent when burned in internal combustion engines.		*Hydrogen production takes 41 kWhr/kg by electrolysis. Hydrogen energy equivalence is 1 kg hydrogen to 1 gallon gasoline equivalent when burned in internal combustion engines.
	*The cost of hydrogen production is $4 per kg if we consider 10 cent per kwhr standard costs of commercial PV energy. But, it is 40 cents per gallon equivalent if we use open source photovoltaics like in our Seed Eco-Home.		*The cost of hydrogen production is $4 per kg if we consider 10 cent per kwhr standard costs of commercial PV energy. But, it is 40 cents per gallon equivalent if we use open source photovoltaics like in our Seed Eco-Home.
			**This cost, see above, is 1/5th of the grid cost at about 2 cents per kwHr. Thus, 80 cent cost of electricity for gasoline gallon equivalent (1 kg hydrogen = 1 gal gasoline)
	*This means that we need data right now - on a full system from PV to hydrogen engines.		*This means that we need data right now - on a full system from PV to hydrogen engines.
	*Can start with industrial hydrogen bought off the shelf, with multifuel test engines via the [[Engine Construction Set]].		*Can start with industrial hydrogen bought off the shelf, with multifuel test engines via the [[Engine Construction Set]].

Marcin: /* Initial */

2022-05-21T18:31:21Z

Initial

← Older revision		Revision as of 18:31, 21 May 2022
Line 43:		Line 43:

	==Initial==		==Initial==

			Cost: 1840 for panels, $320 for racking, or 9 cents/watt for the rack, or 17% of panel costs. See [[Pole and Wire PV Racking]] for more comparative discussion.

	<html><iframe src="https://docs.google.com/presentation/d/1EA9adOaXxA-n57t0G98FV8iAtR-AKGA0xdaweKaP_sQ/embed?start=false&loop=false&delayms=3000#2" frameborder="0" width="700" height="400" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html>		<html><iframe src="https://docs.google.com/presentation/d/1EA9adOaXxA-n57t0G98FV8iAtR-AKGA0xdaweKaP_sQ/embed?start=false&loop=false&delayms=3000#2" frameborder="0" width="700" height="400" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html>