Solar Calculations: Difference between revisions
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*This gets us to 127 gallons of fuel displaced - 42 gal. Ie - each kW installed gets rid of 3 barrels of oil! | *This gets us to 127 gallons of fuel displaced - 42 gal. Ie - each kW installed gets rid of 3 barrels of oil! | ||
*Let's do PV roof on [[SEH]] - 7 kw - 21 barrels of oil displaced! | *Let's do PV roof on [[SEH]] - 7 kw - 21 barrels of oil displaced! | ||
*At low limit, we have 3 kWhr/kW installed per day - or 21 kWhr available per day. | |||
*[[Average Electricity Cost]] | |||
Revision as of 11:39, 7 April 2022
- 1kW pv system - 1400 kWhr
- 6 hr/day average - not! 3-4.5 kwhr/day [1]
- Fuel is about 35 kWhr/gal [2]. Let's say it's used for generating electricity - about 33% efficient - [3].
- To get electricity - 11 kWhr/gal equivalent. Gal is about 3 kg
- This gets us to 127 gallons of fuel displaced - 42 gal. Ie - each kW installed gets rid of 3 barrels of oil!
- Let's do PV roof on SEH - 7 kw - 21 barrels of oil displaced!
- At low limit, we have 3 kWhr/kW installed per day - or 21 kWhr available per day.
- Average Electricity Cost