Yes

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Yes

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Before you start buying Inverter for a home power system, you need to know how much power you use. By taking an inventory of all the electrical loads in your house, and doing a basic electrical load evaluation, you can get a good idea how much power your system needs to produce. If you are designing your power system before building the home, you will need to carefully plan what appliances and electrical systems you will be using.

First, you will need to make a list of everything in your home that uses electricity (or every appliance you plan to connect with Inverter. For the purposes of this evaluation, all these items will be called appliances. Besides the obvious items like televisions, refrigerators and microwaves, appliances you may not immediately think of must also be included.

If you have a telephone that has a transformer on its plug, the power draw of the transformer AND the phone must be included. If possible, find out the "idle draw" of appliances like VCRs. Appliances that are only used occasionally, such as power tools, must be included to correctly assess necessary system surge capacity (unless such items will be powered directly off a generator).

For each appliance listed, the wattage should be noted. If wattage information cannot be found on the product labeling or in the manual, amperage and voltage should be noted instead. Most household appliances will run on 220 VAC power. The voltage requirements of AC appliances should be easily determined. We have included a table showing average power usage for most common household appliances. You can access it HERE. The figures in this table are approximate. For your final load calculation, you should obtain specific information from appliance labels and/or manuals wherever possible.

The overall load evaluation is necessary for determining how much power your system needs to produce on an average day, as well as the amount of battery storage you will need. It can also be used to find areas where your electrical consumption can be reduced.

Appliances such as hot water tank heaters are not potential in an innovative energy system. Using energy efficient compact fluorescent bulbs in as many outlets as possible can still reduce lighting loads.

If you are performing calculations for a backup power system, you can use your load calculation to determine which electrical circuits in your home really need to be backed up. Perhaps you could reduce your system size by only backing up selected rooms of your house. You may not want to be without power in the room where your computer equipment is kept, but having backup power for a bedroom may not be as important.

Once you have finished your total load calculations , you will need to take information for all the AC appliances. Find the AC appliance on the list with the highest priority. Then determine how many of the AC items will be connected (plugged in) at the same time.

The AC appliance figures are important in determining what size inverter your system will need. Make sure, after performing your general load calculation that you find out what the start-up power draw is on each AC appliance. Refrigerators , water pumps and other motor -driven appliances will often draw twice as many amps when their motor first starts as they use while their motor is running. Variable - speed power tools and kitchen appliances may have power draws which vary along with their speeds.