Hello, I am shopping for solar panels for my home and there are so many to choose from. My house uses 40 Kw of power a day. If you had to choose from the output power of a solar panel from below, which one would you choose and why would you choose it? 2 Volts 4 Amps 48Watts2 Volts 8.5 Amps 02Watts6 Volts 7 Amps 2Watts24 Volts 4.2 Amps 00.8Watts24 Volts 8 Amps 95Watts
the last one has highest wattage. that will bring down the total number of panels you need to meet 40 KW. you probably need 220 panels
the two may well be extra effective. while it particularly is cloudy and little solar (wintry climate) you have got a breeze. while it particularly is nonetheless and sunny, you have the solar. while the batteries are charged, extra potential from the windmill would nicely be shunted right into a resistance heater in a water tank, preheating important different and infants water, reducing that cost. draw back of windmills: there is a few noise. you do choose a tower of a few variety to get above treeline. it particularly is mechanical, so it particularly is going to choose periodic upkeep and would injury, or will placed on out, or be broken in a windstorm. Panels will final for some years, in simple terms would desire to be wiped sparkling of snow interior the wintry climate, and washed off, in case you reside in a dusty section. they are hard, however the glass would nicely be broken.
There is more to sizing a system than simply selecting panels. I would suggest that you contact a solar installer to do a bid on your system. The quote should be free, and you can always say no. If a house used 40 kWh per day in our area, that would suggest a 6 kW array to offset substantially all the energy usage over the course of a year. Serious panels tend to be in the neighborhood of 200 watts nowadays, and that would mean 30 of those. You could size the system smaller, of course, if you wanted to offset a smaller percentage of your electricity. If there is any way that you can reduce the energy requirments, that will save you more money than putting in big solar. For example, if you can cut that in half by adding insulation and more efficient appliances, you will save more money than if you got a big array to power everything as-is.
The most energy effiecient PV cell in Australia at the moment is from First Solar they generate the most electricity compared to all units in Australia by an additional 6%. Not much but everything counts these days, especially with prices increasing over the next thress years (even without the CPRS) projections are (by IPART, who are the regulators that sets the electricity prices) rises by 46% (thats by Country Energy) and with the CPRS it was going to reach a 64% increase. The First Solar PV cells will give you a return on investment of around 2.75 years and generate electricity for 25 years (after 20 years they still generate Approx. 85% efficiency - best in market, I know I have been researching them for ages, and these are the ones I am installing !!!. Hope this helps. You need to choose a .5kW system, this will generate Approx $380pa
