Calculator

I. What size system do I need?
II. How much will this system cost?
III. What size system can I accommodate?
IV. How much pollution will I avoid producing?
(Fill out the form below for answers to these questions)

The system size depends on what your objective is. Do you want to:

eliminate your entire electric bill?
eliminate the costly over-baseline portion of your bill?
obtain a system that meets your budget?

Here's how system size is calculated:
1) Look at your electric bills (the more bills you use, the more accurate your calculation - one year's worth of data is recommended.

2) Locate total kwhs and billing days on your bill (see picture below).

3) Enter total kwh: kwh; Enter billing days: days

4) Enter intended location of system:

I. This is your system size for covering your historical load: kw,
i.e. the system size to eliminate your bill.

II. This is approximately how much your system will cost
before rebates and other incentives: $
The industry standard for system cost is $10/Watt. Most contractors will come in with a bid around this number. This is just to give you an idea of cost, i.e. it's not a $1/Watt or $100/Watt. If this number is in the range of your budget, call us at (626) 795-2713 for a free on-site evaluation.

If this price is beyond your budget, enter your budgeted amount: $
or enter the desired system size: kW

III. If eligible for the California Solar Initiative, this system will receive a rebate of approximately: $

IV. This is the system area you must be able to accommodate: sqft

Often the size system is limited by available, usable space. Approximately 100-120 sq ft is required for each 1 kw of system. The space needs to face south and be unshaded. As part of our complimentary on-site evaluation, we will determine sizing options. You let us know your preferences and we will let you know your final system options. After the complimentary on-site evaluation, we will give you a firm bid.

V. This is the amount of pollution you will avoid producing each year:

tons of Sulfur Dioxide (SO2)
tons of Nitrogen Oxides (NOx)
tons of Particulates smaller than 10 micron (PM10)
tons of Carbon Dioxide (CO2)
tons of Volatile Organic Compounds (VOCs)