12v Vs 24v Solar Panels
Have both systems installed if your appliances run on 24 volt systems as well.
12v vs 24v solar panels. Instead of buying a battery which has a capacity of 1000ah at 12v 12kwh you rearrange the battery as a 24v 500ah 12kwh or 48v 250ah 12kwh. If your existing electrical system is 12v like in an rv which already wired and equipped with 12v appliances then you should stick with a 12v solar system. Another thing to consider the batteries typically available for use on a recreational vehicle are either 6v or 12v. The total power available from the battery is exactly the same but with lower losses in the cabling and inverter.
The best system to install for most users would be 12 volt since most home appliances run on this voltage. Solar panel buying guide. Most residential solar systems operate at 24 or 48 volts and supply power to the house with a 230 volt a c inverter. 0 5v line drop at 12v 4 6 supply drop whereas 0 25 v line drop at 24v 1 04 drop.
You have two different higher voltage solar panels i e one 100w 24v and one 200w 24v that you want to connect to the already working 12 v solar power system comprising the two 12v 50 w solar panels connected in parallel from the previous scenario see the picture above. Less losses converting to 240 vac. No the total power in the battery will be the same. Better input regulation.
The solar panels are of voltage rating higher than the system voltage. Price of a 12v solar panel can vary in between rs. Price of a 24v solar panel can vary in between rs. Better inverter efficiency and regulation.
An alternative to this would be to install a 24 volt system but incorporate a charge controller that reduces the voltage to 12 volts whenever necessary. Higher voltage residential panels tend to be fairly large and the higher voltages are more efficient and use smaller wiring.