Three Tips For A Smooth DIY Solar Panel Installation

Does the idea of installing your own solar panels sound like a project you would like to take on? More and more homeowners feel the same way. If you are familiar with the basic electronics that are involved, and you are handy with tools, then go for it. But be aware that installing a grid tied solar electric system is more complex than typical electrical work. Here are a few tips to keep in mind to make the job go more smoothly.

First, check with your local governing building department (city or county) to see if a permit is required. If so, find out if it requires that any of the work be done by a licensed electrician or electrical contractor. You may still be able to do some of the work that does not involve direct electrical connections even if a licensed professional is required.

Next, make sure that the system you are installing is properly designed for the amount of power that your house will require. This may sound obvious and like overkill if you have already spent weeks or months pouring over catalogs or on the phone with equipment vendors. But even when you are doing your own installation and have planned it yourself every step of the way, it does not hurt to double and triple check your calculations and your equipment list.

You could even ask the city or county inspector who will be issuing your final permit to review your game plan. It would be much better to catch a mistake now than to find out during your final inspection that you did not plan for enough solar panels to do the job properly. As a bonus, you will also be getting to know your inspector early in the process. He may turn out to be someone who could be helpful if you run into problems during the installation. And at the very least, you will already have established a good working relationship.

Solar Attic Fans Are Easy Do It Yourself Projects

Are you looking for a quick and easy solar energy project for your home that you can do by yourself?  Installing a solar attic fan may be just the ticket.  Not only is it relatively easy to do, but it will keep your house cooler during hot summer days and nights.

You may not have even realized how much a hot attic contributes to your air conditioning bills.  Attics trap and hold all of the hot air that rises in your house.  This is great in the winter, but it can prevent your house fm cooling off during the summer.

Attic temperatures can easily soar above 120 degrees Fahrenheit even when outside temperatures are only in the eighties or nineties.  Most building codes require attics to be vented, but these vents are simply not designed to cool off the entire attic.  And a roof that has no shade receives sun for most of the day.

Installing a traditional attic fan would require a licensed electrician because it would need to be connected to a power source in order to operate.  But solar attic fans are constructed with built-in photovoltaic modules powerful enough to run the fans.  Not only are they quieter than electric attic fans, but they require no electricity to run since they are installed on the roof and receive direct sunlight.

If you are handy with a saw, drill and screwdriver, and confident enough to cut a hole in your roof, you can install a solar attic fan in a couple of hours.  You will need to locate a place on your roof that receives sunlight all day, is near the peak and also near the middle of the attic space.  You will be cutting a hole through the composition shingles and roof decking that will accommodate the size or your solar fan.

The trickiest and most important part will be finding the optimal location and cutting the hole the proper size for the fan.  A location that faces south will receive the most sunlight.  If that is not possible, you can consider buying a model that has a solar module that can be tilted and positioned to face south.

Once the hole has been cut, it is only a matter of securing the solar attic fan to the roof, and caulking around the fan to waterproof your installation.  You will be able to immediately feel the cooling effects in your attic.  And you will be able to enjoy a more comfortable house and lower cooling bills throughout the summer.

Basic solar panel parts

One of the reasons that building your own solar panels has become so popular is that there are really very few components involved.  A simple solar panel consists of just a few basic parts, namely an enclosure, solar cells, a substrate and wiring.   Here’s an overview of what’s involved.

Solar panel case or enclosure

This is what most people see when they think of a solar panel.  It’s the clear glass top, the frame and the backing that the solar cells are mounted on.  The case can be large enough to need a custom built metal rack for mounting on a rooftop, or small enough to be a plastic box that can be placed almost invisibly near an outdoor floodlight.  It needs to be resistant to ultra violet (UV) rays so that it doesn’t deteriorate with constant exposure to sunlight.  And the glass (usually Plexiglas) needs to be durable enough to withstand harsh weather, including hail and wind storms that could crash tree branches and other debris into it.

Substrate

This is the piece of wood, peg board or other material that the solar cells are mounted on inside of the enclosure.  It also needs to be UV-resistant to withstand prolonged exposure to direct sunlight.

Solar cells

The photovoltaic cells are similar to the silicon chips that power most computers.  They combine the silicon, metals and other materials in a way that captures direct sunlight and converts it into electricity.  The electricity can either be immediately used by direct current devices (DC) like LED lights, or stored in DC batteries and converted into alternating current (AC) to power conventional appliances like refrigerators, TVs and other electrical equipment in homes and businesses.

Tabbed and untabbed solar cells

When building your own solar panels, you can save money by buying untabbed solar cells and soldering the tabs onto the cells yourself.  This can be a good choice if you have more time than money, but it’s a tedious job.  You can save time by buying tabbed solar cells which will cut your soldering time by one-half to two-thirds.

Solar cell wiring

Once the solar cells are mounted on the substrate, they are wired to each other in a series so that they can generate electricity.  Copper wire is added to connect the solar cells to storage batteries for using the electricity later, or to connect directly to the device that the solar panel is powering like an attic fan or a solar powered toy.

Blocking diode

The blocking diode is a small component that prevents electricity that is stored in a battery from draining backward into the solar panel.  Larger photovoltaic systems use a charge controller for the same effect.

Solar Attic Fans Are Easy Do It Yourself Projects

Are you looking for a quick and easy solar energy project for your home that you can do by yourself?  Installing a solar attic fan may be just the ticket.  Not only is it relatively easy to do, but it will keep your house cooler during hot summer days and nights.

You may not have even realized how much a hot attic contributes to your air conditioning bills.  Attics trap and hold all of the hot air that rises in your house.  This is great in the winter, but it can prevent your house fm cooling off during the summer.

Attic temperatures can easily soar above 120 degrees Fahrenheit even when outside temperatures are only in the eighties or nineties.  Most building codes require attics to be vented, but these vents are simply not designed to cool off the entire attic.  And a roof that has no shade receives sun for most of the day.

Installing a traditional attic fan would require a licensed electrician because it would need to be connected to a power source in order to operate.  But solar attic fans are constructed with built-in photovoltaic modules powerful enough to run the fans.  Not only are they quieter than electric attic fans, but they require no electricity to run since they are installed on the roof and receive direct sunlight.

If you are handy with a saw, drill and screwdriver, and confident enough to cut a hole in your roof, you can install a solar attic fan in a couple of hours.  You will need to locate a place on your roof that receives sunlight all day, is near the peak and also near the middle of the attic space.  You will be cutting a hole through the composition shingles and roof decking that will accommodate the size or your solar fan.

The trickiest and most important part will be finding the optimal location and cutting the hole the proper size for the fan.  A location that faces south will receive the most sunlight.  If that is not possible, you can consider buying a model that has a solar module that can be tilted and positioned to face south.

Once the hole has been cut, it is only a matter of securing the solar attic fan to the roof, and caulking around the fan to waterproof your installation.  You will be able to immediately feel the cooling effects in your attic.  And you will be able to enjoy a more comfortable house and lower cooling bills throughout the summer.

Do You Require A Solar powered Pool Warmer?

Solar pool heaters are one of the simplest solar heating applications to set up.  And they are also one of the least costly.  So if you are taking into consideration installing a solar heater for your pool, here are some facts about how they work to help you decide if they make sense for your pool.

Solar pool heaters are ordinarily less complicated than solar water heating systems for your house.  They more often than not use the pool’s pump and filter, so you will only have the cost of buying and installing the solar collector, piping, a diverter valve and an automatic control.

The control lets you adjust the warmth at the high end of the range to your liking so the pool doesn’t get too warm.  The diverter valve works with the control, either sending water into the solar collector to be heated, or back into the pool if not heating is required.

Solar pool heaters use a simple open loop design.  That means that the water flows back and forth between the solar collectors and the pool.  When the pool’s pump is on, cold water from the pool flows into the solar collectors, is warmed up by the sun’s heat and the heated water flows back into the pool.  There are no other moving parts involved.

The least expensive solar collectors can be used year round in warm climates, and are also good for average climates where pools are used during the spring, summer and early fall, when air temperatures are above about 55 degrees Fahrenheit. These solar collectors are not insulated and are constructed from UV-resistant black plastic.  They heat the water to comfortable temperature, but are not useful for heating pools in colder climates.

For heating pools in cold wintry weather climates, a more expensive solar collector with a glass cover and insulated box is used.  Copper absorbers are used as a substitute of plastic, since it does a better job of conducting heat.  These solar collectors are capable of heating water to the much higher temperatures needed in cold climates.  They are more expensive and more difficult to build and install than the lower temperature designs.

But no matter whether your pool is located in a warm, moderate or cold climate, a solar pool heater will save you funds.  Since there are so few components to buy and install, they usually pay for themselves in energy savings in about 2 years.  And they are very low maintenance, since there are no moving parts.  They are one of the most cost-effective solar applications that can be installed in a home.

How Effective Are Solar Hot Water Systems?

Solar hot water heating systems are relatively simple to install, easy to maintain and the most cost effective way to introduce your home to solar energy.  They can save considerable energy and cost when they replace an electric hot water heater.  And they can be successfully used even if you live in a climate where freezing temperatures are common during the winter.

If you live in a climate that does not have freezing temperatures, and your household consists of fewer than five people, you can install a batch heater.  This is the least expensive solar water heating option, and it is relatively easy to build if you have the inclination to do-it-yourself. It is simply a water storage tank that also serves as the solar collector.

The tank is enclosed in a glass-covered box that is positioned to allow maximum exposure to the sun.  The water in the tank heats up and hot water is available for use.   However, it is not the most efficient system, since it takes longer to heat an entire tank of water than to heat a flat panel solar collector.  And as the tank cools at night, there is less hot water available for use.

There are two better systems that can be used even in freezing climates.  The direct pump system circulates water between a solar collector and a storage tank.  With this design, water in the solar collector can heat up faster, and the tank can be insulated for better temperature holding capacity. The pump can be designed to run on electricity from a photovoltaic cell if you want to keep your system completely solar powered.

A thermosiphon system also uses a separate solar collector, along with the pull of gravity.  And it allows for the use of an insulated storage tank for more consistent hot water delivery.  When using either of these systems in cold climates where freezing is an issue, both the piping and the storage tank should be located indoors and properly insulated to provide hot water even on the coldest days.

A Few Benefits Of Solar Energy

With the rising cost of fossil fuels, switching to solar energy is something that many people are trying out. Besides being able to save money on the electric bill, there are other benefits of solar energy as well.

Better for the Environment:

Solar panels allow for appliances to be run without burning fossil fuels. Having an electrical source that doesn’t rely on the use of fossil fuels means that there won’t be any pollutants given off, this is better for the earth.

Less Noise:

There’s nothing noisy about a solar panel. Cells used inside solar panels don’t have any moving parts, so there’s absolutely no sound to be heard coming from a solar panel.

Can be Used Anywhere:

One of the big benefits of solar energy is that it can be used on a house, car, to run outdoor equipment, and even mechanical toys. Most people think that solar energy can only be used in areas where there is constant sun, such as the desert. This isn’t true. As long as there is sunshine for at least part of the day, these panels are able to charge up their reserve pack. They can then run on the sun when it is available and rely on the reserve charge when the sun isn’t around, such as at night or on a cloudy day.

Reliable:

Solar cells very rarely just stop working. Using solar energy for a source of electricity means that even when everyone else is experiencing a power outage during a storm, solar panels are able to keep running.

Able to Earn Money:

There are people that earn money by selling excess energy back to the electric company. This is a great way to supplement income. Also, tax credits are usually provided to people who are interested in purchasing the equipment to switch over to solar energy.

Many other benefits of energy exist besides the ones mentioned above. Technology is constantly advancing to make there panels more affordable for everyone.

Residential Solar Power Systems

Residential Solar Power Systems can be a wonderful addition to a rewarding home life experience. They can significantly reduce the cost of living by lowering the cost of power for heating, cooling, lighting, refrigeration, cooking and so on.

A properly designed house with a well planned and integrated solar power system can out perform standard house in cost of usage, maintenance, ecological impact and the plain old ‘cool’ factor.

Pretty much a dream life of the 60s, when properly integrated into a complimentary power efficient structure, it is now quite possible and less complicated to setup than a standard power grid system.

Residential solar power systems work most effectively when considered during the design stage of residential building construction. This is a far more effective way to implement the solar design into the home than trying to adapt it after the fact to an already completed structure.

A well thought out system is going to take into consideration the location of the building, the directions it is oriented within, and the materials it is constructed of. There are also the shapes of the internal rooms, angle of light entering the building through the windows, the amount of space to arrange solar panels, and the necessary plumbing requirements for solar water heaters to consider. Wiring for both 12 volt DC and 110 AC power requirements, inverter requirements, battery draw requirements and storage area, local building codes, local weather patterns, and owners association guidelines also need to be added to the long list of considerations.

Quite often, the buildings most suited for advanced solar applications are so new that they have yet to be considered or approved by local planning commissions or included in zoning laws. The best way to get the most from this sort of lifestyle is to get away from the highly regulated urban areas and into a more rural atmosphere. The key is research and more of it. Then it’s time to test, learn, grow, and implement residential solar power systems.

Passive Solar Energy Is Cost Effective

Passive solar energy is one of the most cost effective ways to heat a structure once it has been built.

Although adding passive systems to existing structures can get quite costly, many people still feel the benefits outweigh the financial drawbacks. These benefits can be seen when building a passive system that includes remodeling features which are also aesthetically pleasing.

The most effective passive systems involve large windows which allow the sun in during the cooler months and are shaded in the warmer months. Usually the windows are slanted at an angle which allows maximum solar energy to land on a concrete floor and then collect and radiate the energy inside the structure.

Often these passive solar energy systems are designed into structures before they are constructed but sometimes, if the location permits, existing structures can be successfully modified into incorporating a successful passively heated solar energy system.

Some of the more notable passive systems include rammed earth homes with long structure length banks of windows. The orientation of the entire structure is such that the sun will be shining through these windows in winter, but not during summer. This is also true with a number of different styles of dome structures.

Monolithic domes, earth bag domes, cob and reciprocal framed roof domes are all quite easily adaptable to passive solar systems when it’s considered during the design stage and implemented during construction.

All of these structures are well insulated and have thermal masses which are kept at relatively constant temperatures, this then requires far less energy to heat and cool. These designs take much more advantage of passive solar than an existing frame and drywall house is going to. Even with good windows and a concrete floor.

Sometimes, when deciding to switch over to a life with passive solar energy is worth reevaluating the entire lifestyle and the types of homes and locations involved. It is often much more effective to come to the decision to completely change a traditional house into a more sustainable house which lends itself to using passive solar more effectively.

Home Solar Power Kits Are Available For More Than Houses

Home solar power kits can be purchased online from a variety of sources. It is usually cheaper to purchase a kit for building solar panels than it is to go out and by each individual piece. Some people will buy a small kit at first, then work up to larger or additional kits later on. Many people find that creating solar panels can be an ongoing process, sometimes for multiple years. Everything necessary to switch to solar power comes in these home kits.

Panels need to be chosen according to the amount of energy that is needed. Along with the panels, there is also an inverter, the system needed for mounting the panels and the cables needed for connecting the panels to the inverter. Usually the batteries are sold separately, but they can be purchased by the same company offering the kits. There are kits available for tying in solar panels into a grid system or for using when there isn’t a grid to be connected to.

For people who are just starting out with solar panel experimentation, going to a store that sells these home solar power kits might be something to think about. There are staff members who can answer questions about which kit to purchase, how they should be assembled, and anything else that comes to mind. This information can be very useful for people who are concerned with making the wrong choice in solar power kits.

It isn’t only houses that benefit from home solar power kits. These can be purchased for altering cars, RVs, and many other items that require electricity to function. Some generators have been converted to solar power.

This conversion helps with the lack of fossil fuel access during natural disasters. No longer do people have to wait in line to purchase fuel for their generator, they can simply switch over to solar powered generators and never worry about being left in the dark again.

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