|
Solar Energy
Worksheet |
|
1. Calculate the daily output needed from your PV system:
Average Monthly Electricity Use _________KWH (Add the monthly totals for several bills and divide by the number of bills.) x 1,000 (converts KWH to Watt-Hours) = __________WH X _____%* of Monthly Electrical Use from PVs = __________WH divided by 30 days = Daily PV Output Needed __________WH
2.
Calculate the minimum system size of the "solar array" or group of
solar panels you will need (in watts):
Daily
PV Output Needed (from Step 1) __________WH
Divided by Average Peak Sun Hours (_____ hrs) Per Day =__________W divided by 0.7 or .85 for System Efficiency Factor (.7 for independent system with batteries or .85 for more efficient grid-tied system) = Minimum System Size __________W
3. Determine the number of PV modules you'll need:
Minimum System Size (from Step 2) __________W divided by Wattage Rating (_______ W) of Chosen Module = Number of Modules Required _______Modules
4. Find the size of the system (how many watts
per hour your array should produce):
Number of Modules Required (from Step 3; round up) ______Modules x Wattage Rating (_______W) of Chosen Module (also from Step 3) = System Size (in Watts) __________W
Calculation worksheet is a modified version of the original published by Home Power
Magazine, www.homepower.com
|
 Our Mission |
 About Us |
 Sun Power |
 Hot Air |
 Hot Water |
 Wind |
 Solar Energy |
clean energy
worx
offers sales and
installation services
for residential, cottage, farm and small business systems in Central Ontario including
Georgian Bay
/
Muskoka
/
KAWARTHA LAKES
email:info@cleanenergyworx.com 888-687-9490
(division of Alternative Industries &
Development Ltd. Celebrating 32 years)
