![]() ![]() Depending on what you’re doing and using will depend on how you work this one out. Power consumers: This is where it gets fuzzy. PWM, and the difference it will make the guide should be able to be used without needing to worry about this too much. Further, to keep it simple, it’s just not worth going into MPPT vs. Solar Controller: We’re going to ignore this, as most people have a DC-DC Charger (like my Redarc BCDC1240D) with an inbuilt solar controller. To keep this guide simple, we’ll work on the belief that the panels we’re using are high quality as above, and offer a 12-volt wattage output – so a 120W panel will output 10amps, and so on. ![]() Solar Panel watt to amp ratings: Depending on the panel you choose, different panels will put out different watt and amp ratings. Bear in mind that these numbers are with perfect overhead sun – no clouds, mist, haze or trees. Get the measuring tape out and you’ll be able to see if your panels are accurately rated. So 180 watts per square meter of panel is about spot on. We also know that 1 square meter of sunlight (directly overhead) will produce 1000 watts of power. To help you work out how many watts your panel is actually rated to (and for a bit of trivia), we know that a decent quality panel will is around 18 per cent efficient. Instead, we’ll say you’ve bought decent panels, that have an accurate power rating on them. Solar Panels: For the incoming power, we’ll work on the idea that you’ve not bought eBay brand ‘100 million giga-watt’ panels. If you’ve got a 100Ah Lithium or a 200Ah battery bank of lead-acid batteries, just double the battery capacity. Regardless of which you use, the numbers will be the same. Alternatively, a 50Ah lithium battery, with the entire 50Ah usable. You may need to increase or lower your own information to suit your own setup, but this will get you moving in the right direction.īattery: For the battery, we’ll work on the idea that you’ve got a single 100Ah Lead Acid (AGM/Gel) deep cycle battery, which allows (about) 50Ah of usable power. With varying battery technologies and varying qualities of solar panels on the market, we’ll use a couple of constants in this article which will help to keep things simple. ![]()
0 Comments
Leave a Reply. |