Home > categories > Energy Products > Solar Panels > Electricity question about solar panels?
Question:

Electricity question about solar panels?

I was trying to figure out if I could run an electric heater off of a solar panel, but I don't understand these electric convertion factors and stuff. Would it work? (I know it'll only work in the daytime and stuff.)SOLAR PANELPeak Power 95W PTC Watts 73.0WVoc 30.7VPeak Voltage 24.4VIsc 8.6APeak Current 7.96A HEATERInput: 20 V/60 Hz ,500 W/5,200 BTU

Answer:

You will have to run the solar panel to a 2v or 24 v battery array that use an inverter to convert the battery power to 20 for the heaters.
Watts = Volts * Amps Your heater needs at least 500 watts of AC power. The solar panel only produces about 200 watts of power ( 24volts * 8amps). Not enough to run the heater. Also, the solar panel produces DC current, not the AC current that the heater needs. However, if you had solar panel that produced enough power (watts), you could buy a transformer to turn the panel's DC output into the required AC output. But that doesn't seem like a real cost-effective plan.
No, not enough power. Energetic got some of it. A transformer will not convert DC to AC. Transformers work on AC. A power inverter converts. Your solar panels do only put out the 95W but at the higher impedence of the heater, at 24V it would only be able to push through about 45W. Less than an average light bulb in a desk lamp.
A 500 watt water heater is very small. Most are over 5000 watts. But even a water heater that small would not heat water with a 95 watt solar panel. Inverting the 24 volt to 20 volt would still give you 95 watts of power. A little short of the 500 needed. Sorry. Solar is cool but not practical for large loads unless you install more panels.
the panel would have to be on for 0 hours in the sun to get an hours use with the set up. try researching solar hot water heaters. they are much more efficient. a cheap one would be painting an old hot water heater black and pipe it to the new hot water heater. it will save you 80% of your electric hot water bill.

Share to: