How much does power 1.5kW grid solar panel system produce in a month?
Based on an average home in Perth, Australia during winter. I need a rough estimate of how much power it will produce during a month~ thanks.
Electrical power is measured in watts or W.
1.5 KW is 1500 W.
Energy is what we pay for and it is POWER x TIME and is usually measured in KW-Hrs
The solar panel puts out 1.5 KW of power which is probably a peak value under maximum sunlight conditions. Its the sunlight that matters not the outside temperature.
The sunlight intensity depends on both the season and how close to the equator you are. I would think that its fairly strong even in the Perth Australian winter.
If you totaled all the sunlight intensity in a day it would on average be the same as the sun shining for 4 hours only at peak sunlight intensity. I’m not positive about that number.
So then multiplying the values we get:
(1.5 KW)(4 Hrs)(30 days) = 180 KW-Hrs in one month.
If the utility company charged you 10 cents per KW-Hr then its worth
(0.1)(180) = 18 dollars per month. (Using U.S. money)
Electrical power is measured in watts or W.
1.5 KW is 1500 W.
Energy is what we pay for and it is POWER x TIME and is usually measured in KW-Hrs
The solar panel puts out 1.5 KW of power which is probably a peak value under maximum sunlight conditions. Its the sunlight that matters not the outside temperature.
The sunlight intensity depends on both the season and how close to the equator you are. I would think that its fairly strong even in the Perth Australian winter.
If you totaled all the sunlight intensity in a day it would on average be the same as the sun shining for 4 hours only at peak sunlight intensity. I’m not positive about that number.
So then multiplying the values we get:
(1.5 KW)(4 Hrs)(30 days) = 180 KW-Hrs in one month.
If the utility company charged you 10 cents per KW-Hr then its worth
(0.1)(180) = 18 dollars per month. (Using U.S. money)
References :
-32 degrees latitude. Well, San Diego, California is about your latitude on the other side of the equator. If your cloudiness is similar throughout the year, you would get an average of 5.5 equivalent sun-hoursper day. In the summer, 6.5 hours, in the winter 5 hours. Taking the Winter number, you get 150 sun-hours per month, resulting in 225 kWh. December, containing the actual solstice, would be less, January and February more, disregarding clouds and temperature.
But perhaps your climate is drier and/or cooler, so you would get more. One of the things handicapping San Diego is the coastal fog / clouds.
Check with a local solar installer, they probably would know what figure to use for sun-hours.
References :
U.S. insolation maps here: http://rredc.nrel.gov/solar/old_data/nsrdb/redbook/atlas/