“How much will it cost to power my XX,XXX square foot house?”

“How many solar panels do I need to eliminate my electric bill?”

These are the type of questions people will ask when they are contemplating installing a Solar system. Of course there are many things to consider when designing a system for your own home. Once you have looked over your wattage use from information provided in a previous post you can begin to think about your solar panels. First of all, where do you live? Your ability to use the sun for power will depend on high much sun you get annually. You can look at a chart which describes the amount of sunlight that you will get depending on the area of the country or world that you live. Here is a chart for the United States.

Another thing you will need to consider is the angle of the sun where you live and how your roof is configured. Most solar panels are mounted on the roof although you don't have to put them there. It's more expensive to mount the panels on a separate frame but this facilitates the ability to adjust the panels according to the sun's path, providing power for a longer period of time.

So as the planning continues for a home solar array you will start with these ideas first.

1. Calculate your home wattage use

2. Learn about the sunlight hours in your local area and how the sun tracks through the sky

3. See how your home or yard area can be used to capture sunlight for maximum power input

Once you have considered these questions it will be time to start figuring the type and amount of panels you will need to provide additional power for your home.

Get started with home Solar!

When you decide you want to put a solar system on your home there are some things to consider before you get started. You'll want to find the right place to install the solar panels so you get maximum exposure to the sun, you'll need to assess your power needs to understand the amount of panels to use and the battery storage requirements. The first thing you should do is to use a checklist and find out what your power usage is on a monthly basis. Each of your appliances will use a certain amount of power and depending on what your lifestyle is, you'll learn what unit is using the most power and how to assess your overall power needs. The following chart will give you an idea of some standard wattage usages. These are some wattage ratings for typical household appliances and home electrical devices. Check the rating on your personal items for an accurate wattage count.

Light Bulbs - 60 / 70 Watt	60/70
Dishwasher	1500
Refrigerator / Freezer	700*
Microwave	1000
Coffee Maker	1000
Electric Range	1200
Radio / Television	50 - 500
Security System	500
Computer w/17" Monitor	800
¼ HP Garage Door	875

Clothes Dryer	5000
Washing Machine	1500
Toaster Oven	1500
Hot Water Heater	5,000
Blender	300
Stereo	300-450
Ceiling Fan	100
Floor Lamp	100
Hair Dryer	600-1200
Window Unit	750-1200

Hedge Trimmer	450
Lawn Mower	1200
Weed Trimmer	500
Edge Trimmer	500

Furnace Fan Blower - ⅓ HP	700*
Window AC - 12,000 BTU	3250*
Central AC - 10,000 BTU	1500*
Central AC - 24,000 BTU	3800*
Heat Pump	4700

Next you would calculate the Watt Hour which would be the Wattage rating times the hours used. Load Calculation Example:Lets say you want to run a 11W compact fluorescent lamp (CFL) for 5 hours from a solar panel, then the watt hour is equal to:

Watt Hour = 11Watts x 5 hr = 55 Watts

Once you have calculated your total monthly wattage use you can get an idea of what size of solar array to install in your home. This is the first step you need to take in order to properly plan your home solar installation. Stay tuned for the next step