A cash purchase has benefits like using the investment tax credit and depreciation benefits of solar but not everyone has the ability to buy solar panels with cash upfront or use a lender.
Excel sheet for costs of solar panels.
But you should also look at the data sheets for each panel and see what the maximum guaranteed degradation is for the different panels.
If you are grid tied or participate in net metering the power generated at your facility is placed as a credit to your energy bill.
I want to maintain the 70 c temperature of 50 liters approx water using 500 w dc heater for 24 7.
I have seen the excel sheet you have prepared for design of solar panel inverter and battery bank and it is awesome.
I developed what started off as a simpler spreadsheet to help decide the best energy plan to consider from our energy provider origin energy.
If anything lends itself to being set out in a spreadsheet or financial model it is this.
0 7 per annum versus 0 25 per annum may not seem like much difference but compounded over a 20 year period it s a 5 1 versus 15 0 decrease in output and each year you re paying more per kwh for the electricity that your panels are no longer generating.
Here my application is little different on solar water heater.
Download solar electricity calculator simple excel template that can calculate the costs of a solar electricity system and the amount of time that should pass before it pays for itself.
We recently put solar panels on our roof and so i have become interested in solar energy and how it all works.