Powering Homes With Renewable Energy To Save Money
The International Energy Agency (IEA) states that renewables have surpassed coal last year to become the largest source of installed power capacity in the world. According to the IEA’s Medium-Term Renewable Market Report, the IEA now sees renewables growing 13% more between 2015 and 2021 than it did in last year’s forecast, due mostly to stronger policy backing in the United States, China, India and Mexico.
Renewable energy is a great and effective way to power your home and reduce or completely eliminate your utility bills. In addition, tax incentives for installing renewables can make them even more cost effective.
Recently, Popular Mechanics outlined seven different ways to power homes with renewable energy and save money:
1. Rooftop Solar Panels
This is probably the most common and obvious method, if you’re looking into renewable power. Solar panels typically go on your roof, although you can also install them in your yard. Depending on your latitude and the orientation of the panels, you could generate 10 or more watts per square foot. A typical house consumes at least a kilowatt of power, so a few square feet of solar panels should be enough to power most or all of your needs.
If your current roof is nearing the end of its lifespan, you could also consider investing in solar shingles. Where standard rooftop solar panels are mounted on top of your current roof, solar shingles actually take the place of your roof tiles. Elon Musk’s SolarCity recently announced a plan to start producing solar shingles, and other companies like SunTegra have been making them for years.
Of course, one big weakness of solar power is that it only works when the sun is up. If you want to power your home when the sun is down, you’ll need to pay for grid electricity or invest in a second type of renewable energy.
2. Wind Turbines
Wind turbines are most commonly found in windfarms or floating offshore, but if you have enough real estate you can install a small wind turbine on your property to power your home.
There are a few downsides to a wind turbine that make them less popular in residential areas. They can be ugly and make a lot of noise. They take up space, and depending on where you live, local laws and zoning regulations may outright forbid it.
But if these disadvantages don’t apply to you or don’t bother you, wind power may be a great asset. Wind power is more stable than solar, and a good-sized wind turbine can easily generate most or all of your electricity needs. Depending on your area, wind might be a better renewable investment than solar.
3. Solar Oven
Perhaps you’re not ready to power your entire home with renewable energy. That’s a big project, and maybe it’s just not feasible for all sorts of reasons. You can still power a part of your home with renewable energy by building a solar oven.
Solar ovens are typically a science fair project, but ovens actually use quite a bit of electricity. Using the sun to passively heat your food is a good way to get started in the world of renewable energy. Solar ovens work by trapping sunlight to heat food. You can buy a solar oven or build your own out of a few common materials.
Solar ovens have several advantages, in that they heat your food for free, and they work even during a power outage or emergency. You’ll never have to have a cold meal due to a lack of power.
4. Hydro Power
This won’t work for most people but if your property contains a source of flowing water, you’re in luck. You can divert some or all of the stream or river to flow through a turbine and power your home.
There are a number of ways to go about doing this, but at its most basic, you’ll want to find the largest vertical distance the water will travel, and divert that water so it flows through a turbine in a controlled manner. Depending oni the amount of water and vertical distance, you can product a substantial amount of power this way. Setting up a hydro power generator is not easy, and you may need to have a professional install it for you. If you have some engineering knowledge, though, you could even build it yourself from scratch.
And the advantages to hyrdro power are immense. Unlike solar and wind, hydro is table and continuous, which means you’ll always get the same input no matter what. You’ll never have to worry that your generator won’t be able to power your home. That piece of mind might be work a little engineering project.
5. Solar Water Heating
Solar power doesn’t just have to generate electricity. You can also use the power of the sun to heat your home.
Solar water heaters use the sun to heat a reserve of water, which can then be pumped through your radiators or out your faucets or showerheads. This system is much cheaper than using gas or electricity to heat your water, and is easier to install than solar panels. If you’re not willing to completely commit to powering your entire home with renewable energy, solar water heating can be a good alternative.
There are many different types of solar water heaters, each with their own advantages and disadvantages, so be sure to select they type of system that works best for you.
6. Solar Air Conditioning
It might seem strange to use heat from the sun to cool your home, but that’s exactly what solar air conditioning does. Solar air conditioning uses the same principles of the solar water heater, but uses that hot water in an air conditioning system.
Air conditioning uses more electricity than almost anything else in your home. Air conditioning can cost you a substantial amount of money every year, especially if you have central air and live in a hot climate. Using hot water to cool your home can save you money and help the environment.
As a bonus, the hot water produced for air conditioning can also be used for other applications in your home. Depending on your setup, you can get the benefits of solar water heating with bonus air conditioning as well.
7. Tesla Powerwall
Technically, the Powerwall (or other similar large rechargeable battery) isn’t renewable energy, but it works well with any home renewable generator and can even save you money without any other renewable system.
The Powerwall is a large rechargeable batter that can store several kilowatt-hours of electricity. On its own, it can be programmed to charge itself from the grid when electricity process are low, and discharge when prices are high, to save you money during peak hours.
However, the Powerwall is best used in combination with a source of renewable energy generation like solar or wind power. The Powerwall can store excess electricity that you don’t use right away, so you can always use renewable solar or wind energy when the sun is down or the wind’s not blowing.
The Powerwall can smooth out fluctuations in your renewable energy generation, eliminating one of the main disadvantages of renewable energy. Plus, thanks to upcoming legislation you may be able to receive a tax credit for connecting your Powerwall to the grid.
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