power needed x 2 = inverter power
if you needed 250 watts
250 X 2 = 500
500 would be your inverter power
inverter power / 500 = batteries @ 100ah
500 / 500 = 1 battery @ 100am
if your inverter power was 750-1000 watts you would want 2 batteries @ 100ah
if your inverter power was 2000 watts you would want 4 100ah batteries.
solar panels = 90 watts x 100ah batteries
if you had 1 100ah battery you would want 90 watts of solar panels to be useful
keep in mind that 15 watts = approx. 1 amp. an ideal charging rate is 10 amps which is about 150 watts.
if you had 2 100ah batteries you would want 180 watts of solar panels.
Don’t get me wrong, you can have a 45 watt solar panel system but don’t let your battery go flat 11.9 volts you will be days on end to top off your 100ah battery
The ideal beginner solar system would be 500 watt inverter, 1 100ah battery and 90 watts of solar panels.
Well, so much for conservation, when the time comes to pay the now approved yearly fee of $100.00 to operate and Electric car. High gas prices, so we embraced the alternative electric/battery powered car. Now we learn that there is going to be a fee/penalty to operate these vehicles. The idea was to save money, but our officials has came up with the brilliant idea of tagging on a fee to compensate for gas taxes. Well, why bother, you can’t drive a battery powered vehicle cross country. The milage per charge is not worth the time and effort if you are going to be subjected to fees and later fee increases. I can see fee increases in the future, now its starting at $100.000, what to stop them from increasing it to $200.00 or higher in the future.
Besides, what are we going to do with all those spint lithium power cells. We know that disposal of batteries is a hazardous job. Are we going to be charged a fee for disposal of the old lithium batteries? Sure we are. Just like every time we have new tires put on our vehicle we are charged a casing disposal fee. But the charge for disposing of lithium batteries will be much, much higher. Now you tell me is it worth it to get an electric car?