Solar Panels Cost Savings
Kilowatt/Hour question?
I am trying to figure this out can u help?
i need help. i got this step:
Number of solar panels: 2
Equipment Cost: $3,800.00
NC Tax Credit: $1,330.00
US Tax Credit: $1,140.00
Total Credits: 65%
Equipment Cost after Credits: $1,330.00
Generated Watts: 380
Generated Kilowatt/Hour: 1.256
it all went fine, but to the next step i do not get the logic behind it:
• The savings is the number of kilowatt-hours generated per year times the billable kilowatt-hour, which is $0.1048. The billable kilowatt-hour is what you pay if you use power from the grid as opposed to generating it yourself.
so i take the last computed value (that is kilowats per day, multiply with 365 days in an year and then multiply with the price per kilowatt, right)?
I tried to reconcile your numbers. If you generate 380 watts = .38 kilowatts, and that is good for only 3.3 hours/day, then you get what you wrote:
1.256 kilowatt-hour (NOT kilowatt/hr) which I’m assuming is the power generated on an average day.
You can treat dimensions just the way you do any other algebraic expression, so
1.256 kwh/day * 365 days/yr * .1048 dollars/kwh = dollars/yr
Note that kwh in numerator & denominator cancel each other out. Similarly with days. So you are left with dollars per year — just what you wanted.
Saving Energy with Solar Power : Using Homemade Solar Panels
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