Category: Solar Energy

If you install solar panels on your home, can you go "off grid" and never have to deal with the electric company again?  Being energy independent is a nice thought.  No more triple digit electric bills.  No more hassle with the utility companies for any reason.  Is this possible for you and your family?  It depends on where you live, and how much money you're willing to commit to maintain your own energy system.

First, consider where you live.  Are you in a part of the world that gets lots of sunlight all year long, or do you have lots of gray and overcast days?  Even when you install solar panels on your home, they only create electricity while the sun is shining on them.  That means you have to use batteries to store electricity in order for it to be available at night and during overcast days. 

Here's where your system can start getting expensive.  You'll need to buy and maintain enough large DC (direct current) batteries to store enough electricity to get you through one to three days of cloudy weather.  You'll need plenty of storage space for all of those batteries, and you'll have to plan for the expense of replacing them periodically.

It's also a good idea to keep a backup generator just in case you have a long stretch of cloudy weather that lasts beyond your battery storage capacity.  Your generator will need fuel, so you’ll have to store that, too. Generators usually use either gas or diesel fuel.  But that seems to defeat the purpose of a solar panel system, so you’ll probably want to use biodiesel.  So, yes it is possible to got "off grid", but it's not a simple or cheap project.

For most people, it makes more sense to look into "net metering".  Find out  if it's offered by your local electric utility company.  Net metering is a great way to cut down on your electricity bills, yet still have power available at night and during long spells of gray, cloudy days.  Net metering allows you to credits back from the electric company for excess electricity that your solar panels produce during the day.  Then you simply use the electricity from your local utility company at night and on days when there is not enough direct sunlight.  You won’t need to store banks of DC batteries in your basement or garage.  You won’t be completely "off grid", but you can save significant amounts of money on your monthly electric bills.  Some months you may even have a zero balance.

So if you live on a large parcel of land and have an extra barn or outbuilding to store your DC batteries in, going “off grid" could be a reality for you.  But if you live in a subdivision, have no basement, and you're already parking your car on the street because the garage is too full, "net metering" will probably be your best bet.