editzoqa.blogg.se - Download off grid solar panels

So now our run time is gone from 6 to 3 hours. There are guidelines for each battery type but a general rule would be to prevent discharge beyond 50% DOD. Typically batteries do not deal well with deep discharge (more than 75% DOD), some may never recover a charge and for others, the overall life cycle of the battery will be reduced. The amount of battery used is called the depth of discharge (DOD) so a battery at 100% charge is 0% DOD, a completely empty battery is 100% DOD. In general, batteries will have a discharge curve, meaning that as the capacity of the battery declines, so too does the batteries ability to push that charge. So from 100% charge to 0% charge in the battery, our run time is: 600Wh capacity/100W load = 6 hours run time, easy huh? well, no. The Wh capacity of our battery is 12V * 50Ah = 600Wh Typically you will select between 12V & 24V cells with12V being more common.īatteries will come with a capacity rating in amp hours (Ah), to work out how long one battery will run a load first find the wattage for the load, to keep it simple we will call this load 100W. There are many types of batteries, however, due to cost and practicality, normally only Sealed Lead Acid (SLA) and Gel batteries are considered. Without batteries, you can still have a solar power system but you must use the power as it is collected and depending on the conditions, the output may be unstable.

True sine wave inverters: these are the most expensive type but will most accurately emulate the power that comes from a generator of the power company, they will work with all types of equipement.īatteries are at the heart of the solar power system, these are the storage for all of that lovely solar energy you have collected.

Modified sine wave inverter: these are an evolution of the square wave inverter, the wave is still squarish, but there are additional steps in the wave to emulate a sine wave, these will work with most equipment.

Square wave inverter: these are usually the cheapest type, they may be used to power some tools and universal motors but generally won't work with more complex electronics.

There are 3 types of inverters to look for:

This will inform the continuous load rating of the inverter, there will also be a peak load rating on the inverter, this is the amount of power that can be supplied for a short duration, loads, particularly those with motors will have a large current inrush on startup and this needs to be accommodated. In the last step, we calculated the peak load.

In order to convert this you will need an inverter. Your output from your solar power system will be DC. Chances are that most (if not all) your appliances are mains powered AC loads.