Zero Marginal Energy Cost - Revision history

Marcin: /* Verify */

2026-02-09T21:53:38Z

Verify

← Older revision		Revision as of 21:53, 9 February 2026
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	*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]		*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]
	1.7 cents / 3020, then divided by 1367*1200 - gets us to 1 cent.		1.7 cents / 3020 (30 instead of 20 years), then divided by 1367*1200 for actual Missouri - gets us to 1 cent.

Marcin: /* Verify */

2026-02-09T21:53:10Z

Verify

← Older revision		Revision as of 21:53, 9 February 2026
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	*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]		*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]
			1.7 cents / 3020, then divided by 1367*1200 - gets us to 1 cent.

Marcin: /* Verify */

2026-02-09T21:51:11Z

Verify

← Older revision		Revision as of 21:51, 9 February 2026
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	=Verify=		=Verify=
			*[[Joshua]] sez - If assume ~1200kWh/kW/year, you have $400/kW, Lasts 20 years= 24,000 kWhs puts it at less than 2 cents/kWh (1.7 c/kwhr)

	*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]		*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]

Marcin at 21:48, 9 February 2026

2026-02-09T21:48:35Z

← Older revision		Revision as of 21:48, 9 February 2026
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	This shows less than 1/2 the utility-scale cost structure, but executed on the microscale.		This shows less than 1/2 the utility-scale cost structure, but executed on the microscale.

			=Verify=
			*1367 kwhr/kw installed per year in missouri - [https://chatgpt.com/share/698a55c7-5850-8010-b8ee-76bc2dc4a05c]

Marcin at 05:17, 27 January 2026

2026-01-27T05:17:20Z

← Older revision		Revision as of 05:17, 27 January 2026
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	~~Deive~~ the cost per kilowatt hour for PV panels that cost $200 per kilowatt - is that the current bulk cost? Assume the standard lifetime, and inverters that cost $100 per kilowatt - is that the correct cost? Assume no storage, and mounting cost of $10/kw because it is building-integrated.		This is the cost of electricity derived from photovoltaics. No storage.

			Question: Derive the cost per kilowatt hour for PV panels that cost $200 per kilowatt - is that the current bulk cost? Assume the standard lifetime, and inverters that cost $100 per kilowatt - is that the correct cost? Assume no storage, and mounting cost of $10/kw because it is building-integrated.

	Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf		Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf

Marcin: Marcin moved page Zero Marginal Cost Electricity Production to Zero Marginal Energy Cost

2026-01-27T05:16:43Z

Marcin moved page Zero Marginal Cost Electricity Production to Zero Marginal Energy Cost

← Older revision	Revision as of 05:16, 27 January 2026
(No difference)

Marcin at 05:11, 27 January 2026

2026-01-27T05:11:37Z

← Older revision		Revision as of 05:11, 27 January 2026
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	Design rationale: use fat pipe of 4/0 aluminum for a DC bus carrying 150A (15 strings of 10A) on 2 sides, each side of long building. This way, no MC4 extenders are required. This eliminates the XHHW-2 above but adds a second 4/0 wire, at same cost. This is actually more robust than going to 350kcmil wire at higher cost.		Design rationale: use fat pipe of 4/0 aluminum for a DC bus carrying 150A (15 strings of 10A) on 2 sides, each side of long building. This way, no MC4 extenders are required. This eliminates the XHHW-2 above but adds a second 4/0 wire, at same cost. This is actually more robust than going to 350kcmil wire at higher cost.

	This makes cost of electricity 0.8 cents/kWhr.		This makes cost of electricity 0.8 cents/kWhr. https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf

	'''But PV lasts more than 25 years. Under the assumption of lifetime design inverters - the cost drops to 1/2 of this - down to 0.4-0.5 cents per kWhr.'''		'''But PV lasts more than 25 years. Under the assumption of lifetime design inverters - the cost drops to 1/2 of this - down to 0.4-0.5 cents per kWhr.'''

	~~https:~~/~~/chatgpt~~.~~com/share/6978447d-0958-8010-a31f-e4e788cab0bf~~		This shows less than 1/2 the utility-scale cost structure, but executed on the microscale.

Marcin at 05:10, 27 January 2026

2026-01-27T05:10:15Z

← Older revision		Revision as of 05:10, 27 January 2026
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	Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf		Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf

	Wiring is DC bus at 500V carrying 200A or 100kW, linear array say of 200 feet long, 10 panels deep, each panel connecting with a long ga 14 wire back to bus (30 wires *50'=1500 feet of 14 ga XHHW-2 at 28 cents per foot (https://www.wireandcableyourway.com/xhhw?srsltid=AfmBOooslPMla7YGEH_a-hYczUjDOT7sFuHo1TGrGclpjhzmGPIkSgPW)) and 4/0 cable at $2.5/foot makes for $500+$500. So I pay $1000 in wire for 100kw or $10/kW in wire, so wiring cost is negligible. Combiner is $55/6kW, or about $10/kw. Engineering is open source reference design. Conduit - is $340/100kW or $3/kw. So total not including labor is $333/kW for hardware. Labor is about 20 minutes per panel (4 mount points through panel, 4 screws to mounts, marking 20 long lines , and 3D printed mounts) for about 100 hours - or $2500 - for 100 kW - or $25/kw - making total with labor come out to under $400/kW.		Wiring is DC bus at 500V carrying 200A or 100kW, linear array say of 200 feet long, 10 panels deep, each panel connecting with a long ga 14 wire back to 300A bus (30 wires *50'=1500 feet of 14 ga XHHW-2 at 28 cents per foot (https://www.wireandcableyourway.com/xhhw?srsltid=AfmBOooslPMla7YGEH_a-hYczUjDOT7sFuHo1TGrGclpjhzmGPIkSgPW)) and 4/0 cable at $2.5/foot makes for $500+$500. So I pay $1000 in wire for 100kw or $10/kW in wire, so wiring cost is negligible. Combiner is $55/6kW, or about $10/kw. Engineering is open source reference design. Conduit - is $340/100kW or $3/kw. So total not including labor is $333/kW for hardware. Labor is about 20 minutes per panel (4 mount points through panel, 4 screws to mounts, marking 20 long lines , and 3D printed mounts) for about 100 hours - or $2500 - for 100 kW - or $25/kw - making total with labor come out to under $400/kW.

			Design rationale: use fat pipe of 4/0 aluminum for a DC bus carrying 150A (15 strings of 10A) on 2 sides, each side of long building. This way, no MC4 extenders are required. This eliminates the XHHW-2 above but adds a second 4/0 wire, at same cost. This is actually more robust than going to 350kcmil wire at higher cost.

	This makes cost of electricity 0.8 cents/kWhr.		This makes cost of electricity 0.8 cents/kWhr.

	'''But PV lasts more than 25 years. Under the assumption of lifetime design ~~iverters~~ - the cost drops to 1/2 of this - down to 0.4-0.5 cents per kWhr.'''		'''But PV lasts more than 25 years. Under the assumption of lifetime design inverters - the cost drops to 1/2 of this - down to 0.4-0.5 cents per kWhr.'''

	https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf		https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf

Marcin: Created page with "Deive the cost per kilowatt hour for PV panels that cost $200 per kilowatt - is that the current bulk cost? Assume the standard lifetime, and inverters that cost $100 per kilowatt - is that the correct cost? Assume no storage, and mounting cost of $10/kw because it is building-integrated. Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf Wiring is DC bus at 500V carrying 200A or 100kW, linear array say of 200 feet long, 10 panels deep, each pane..."

2026-01-27T05:02:46Z

Created page with "Deive the cost per kilowatt hour for PV panels that cost $200 per kilowatt - is that the current bulk cost? Assume the standard lifetime, and inverters that cost $100 per kilowatt - is that the correct cost? Assume no storage, and mounting cost of $10/kw because it is building-integrated. Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf Wiring is DC bus at 500V carrying 200A or 100kW, linear array say of 200 feet long, 10 panels deep, each pane..."

New page

Deive the cost per kilowatt hour for PV panels that cost $200 per kilowatt - is that the current bulk cost? Assume the standard lifetime, and inverters that cost $100 per kilowatt - is that the correct cost? Assume no storage, and mounting cost of $10/kw because it is building-integrated.

Chat says: https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf

Wiring is DC bus at 500V carrying 200A or 100kW, linear array say of 200 feet long, 10 panels deep, each panel connecting with a long ga 14 wire back to bus (30 wires *50'=1500 feet of 14 ga XHHW-2 at 28 cents per foot (https://www.wireandcableyourway.com/xhhw?srsltid=AfmBOooslPMla7YGEH_a-hYczUjDOT7sFuHo1TGrGclpjhzmGPIkSgPW)) and 4/0 cable at $2.5/foot makes for $500+$500. So I pay $1000 in wire for 100kw or $10/kW in wire, so wiring cost is negligible. Combiner is $55/6kW, or about $10/kw. Engineering is open source reference design. Conduit - is $340/100kW or $3/kw. So total not including labor is $333/kW for hardware. Labor is about 20 minutes per panel (4 mount points through panel, 4 screws to mounts, marking 20 long lines , and 3D printed mounts) for about 100 hours - or $2500 - for 100 kW - or $25/kw - making total with labor come out to under $400/kW.

This makes cost of electricity 0.8 cents/kWhr.

'''But PV lasts more than 25 years. Under the assumption of lifetime design iverters - the cost drops to 1/2 of this - down to 0.4-0.5 cents per kWhr.'''

https://chatgpt.com/share/6978447d-0958-8010-a31f-e4e788cab0bf