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Why You Don’t Need Solar Panels

Why You Don’t Need Solar Panels

By Carl Seville, Networx

When people learn that I am a green building consultant, almost without exception, they ask me if I do a lot of work with solar power, which I don’t.  I don’t install many solar power systems, either photovoltaic (the kind that creates electricity) or thermal (the kind that creates hot water). I have been accused of being anti-solar because I often discourage people from focusing on PV on their homes, at least until they have done everything else to save energy, which they rarely bother to do.

PV makes a lot of sense in underdeveloped countries where there are unreliable or non-existent electrical power grids or for the rare person in a developed country who wants to live completely off the grid. In both cases, the key to taking advantage of solar power is to not use much energy in the first place. This also applies to anyone who wants to put panels on their home out of a desire to be “green.”

Reducing your need for electricity requires living in a small, extremely efficient home, reducing or disconnecting as many appliances and electronics as possible, using efficient lighting and equipment, and changing behavior to use less power.

Here’s what you’ll have to do to reduce your power use enough to benefit from solar panels:

Down-size your house: The average American home is about 2700 square feet, about twice what it was in the 1950’s. Bigger homes use more power to light, heat, and cool, so smaller is better when it comes to energy use.

Next comes the efficiency of the building itself: Simple things (OK, it’s not so simple if your house has already been built, but it’s simple if you’re building a new house) like orienting the house to take advantage of the sun to heat it when needed and avoid heating it when not needed saves energy. In most homes, air sealing, insulation, sealing HVAC ducts (call a qualified HVAC contractor to do it), and other home performance improvements will save more energy than most solar systems will produce, and at a lower cost. Using windows to provide natural light also cuts down on the amount of electric lighting required.

Unplug your devices: In the 21st century, we have more electrical equipment in our houses than ever before, much of which is left on when not used, and even when turned off, still draws power to operate.  Look around your house – all those digital displays, phone chargers, and TVs are drawing power even when their switches are “off.”

Finally, and probably most important, is the behavior of the occupants: No matter how small or efficient your house is, if you leave lights and electronics on, turn the heat up higher or air conditioning lower than you need it to be comfortable, and don’t turn them off and open windows when the weather is nice, then you are wasting a lot of energy that all the solar panels you can fit on your roof won’t replace.

So before you spend your hard earned money on solar panels, fix your house, unplug your electronic devices, turn things off, open the windows, air seal, and then insulate. You’ll be more comfortable and save more money than you could with lots of fancy solar panels decorating your roof.

Carl Seville writes about Atlanta electrical issues for Networx. Read more like this on Networx.

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Read more: Conservation, Crafts & Design, Eco-friendly tips, Green, Home, Materials & Architecture, Technology,

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1:06AM PST on Nov 19, 2014

Disagree. Do all these AND add solar panels!

8:44AM PDT on Jun 18, 2012

Thank you

7:48AM PST on Mar 1, 2012

Thanks for the tips...there is always room for improvement.

11:40AM PST on Feb 8, 2012

Great article. We're installing solar because we live in a rural area and we have been without electricity for a few days. Although our house is large we have rooms closed off because they are not being used.

12:41AM PST on Jan 30, 2012

We open our windows every chance we get. Not only does it let in fresh air and lower the electric bill, but it also airs out germs from colds and such.

2:30PM PST on Jan 26, 2012

I think that no matter what we do the power company will charge as they much as they want, anyway.
My house is kep at 60 degrees in the winter & 78 in the summer. And yes, I do unplug everything when I am finished with it as well. Yet my electric bill is outrageous.

10:34PM PST on Jan 25, 2012

I already do these things. It is not that difficult, once you get in the habit.

3:49AM PST on Jan 24, 2012

You forgot installing a tankless hot water heater and upgrading widows and doors.

10:20AM PST on Jan 23, 2012

We should all do both. With more and more people setting up homes every day we will soon overload the capacity of our power grid.

4:14AM PST on Jan 23, 2012

Do both?

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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
Care2, Inc., its employees or advertisers.

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