A 100-watt solar panel can produce anywhere from 300Wh to 700Wh (Watt-hours) of energy in one day. At 12 Volts, and with an MPPT charge controller, that’s 25Ah to 60Ah (Amp-hours) of daily energy production. But is it enough to…
A solar charge controller also called a regulator, is an electronic device used in solar energy systems to protect the battery. Solar charge controllers are mainly used to keep batteries from overcharging and over-discharging. However, newer MPPT charge controllers can…
PWM charge controllers are probably the most used type of solar charge controller in small off-grid systems. Compared to MPPT charge controllers – another type of solar charge controller- they are very cheap and accessible. In this article, I’ll explain…
The PWM calculator below will tell you which PWM is best for your system based on the maximum current your solar panels can put out. All you have to do is enter a few details that describe your solar system…
MPPT charge controllers are expensive, but they are the best charge controller technology on the market. In this article, I’ll answer some of the FAQs about these devices. If there are any questions I haven’t answered, please feel free to…
MPPT solar charge controllers are rated in amps (Output Current). To select a charge controller, you’ll need to calculate the maximum amount of current (in Amps) that the MPPT should be able to output. This max output current value is…
Solar charge controllers are rated in amps but are also limited by their maximum input voltage. To select the right MPPT charge controller for your system, you need to answer 2 questions: To make this guide more digestible, I will…
Nobody wants to buy a 200W solar panel and only get half the output power they were promised. But without a little bit of optimization, that’s probably what you’re going to get. Losing a couple of dozen percentage points of…
While residential solar panels are – on average – 20 square feet each, the average home in the U.S. has a roof area of at least 1500 square feet, which intuitively seems like more than enough space to install all…