Forty years ago, Harold Hay, 98, invented a simple, inexpensive way to heat and cool a home using the sun’s rays, but without the panels and wiring that come with conventional solar energy systems.

He’s been pushing for its adoption ever since, trying to find footing in each of the solar industry’s last three boom-and-bust cycles.

Yet, despite the merits of his pioneering technology, the energy establishment has shown only fleeting interest.

As Gore said, quoting Upton Sinclair “it is hard to get someone to understand something — if their salary depends upon not understanding it.”

When it comes to climate change, those who refuse to act are mostly those without imagination, or those whose financial interests support the status quo. Passive solar systems cost little or nothing to operate, and so represent a serious threat to the fossil fuel industry.

Hay’s system keeps a house between 65-75 degrees year-round with virtually no electricity. What’s the catch? It requires the house to be built from scratch, and built strong enough to hold a roof-sized pond of water. Still, to have no heating or cooling bills for the life of the home? Wow. [Click the story link at the top of the article for a video of this house and how the system works.]

Even if people didn’t want to have flat roofs, I see no reason why they couldn’t heavily insulate their home and locate the solar pond elsewhere on their property. Then they could use pumps and heat-exchangers to take advantage of the water’s thermal mass. Certainly this could be a great way to cool apartments and commercial buildings as well.

Cheap electricity, fuel oil, and natural gas have kept people using energy-hogging central furnaces and forced-air systems, generating countless gigatons of CO2 for decades. Solutions such as the Skytherm house are as simple and elegant as it gets and produce no CO2. Only two things stand between our current situation and a clean planet and better life: greed and inertia.

Carbon taxes will make the status quo prohibitive, and force many of these types of solutions. There are many details to be worked out, of course, but a better national energy policy can turn this sad situation of needless energy waste around. There’s no excuse anymore, it’s just common sense. It’s high time for solar energy to stop being a science project and get mainstreamed

Thirty some years ago, just after I first started building houses, a friend (another builder) and I took on a solar hot water franchise as a side line to home building. We thought solar heating was cool and avant-garde, and that everyone else would too.

Boy, were we wrong! We couldn’t give solar heating away. People thought that the solar collectors were ugly and no one wanted those ugly contraptions on their roofs. Besides, electricity and gas were cheap, plentiful and we would never run out of either.

My, how times and thinking about things change.

Here’s the scoop from the NAHB Research Center:

“Harnessing energy from the sun to heat water is nothing new. Solar water heaters have been commercially available since the 1800s. What’s new is how solar water heaters look these days.

Most modern solar water heaters mount flush with a home’s roof and resemble skylights. Solar water heaters are an environmentally sound way to reduce energy bills.

Solar energy can meet part or all of a home’s domestic hot water needs. Geographic location, system design, collector orientation, and collector size will determine how much energy can be provided for domestic hot water heating.

Solar water heaters come in a variety of configurations. Each differs in design, cost, performance, and level of complexity.

Most systems have back-up water heating such as electricity or gas. A solar water heating system usually consists of a hot water storage tank, a solar collector that absorbs solar energy, a back-up energy source, and (for forced circulation systems) a pump and controls.

There are two main types of systems: passive and forced circulation. Within each type, there are several configurations. A passive water heater consists of a water tank integrated into or located above a solar collector. In an integrated collector storage (ICS) system, also called batch water heater, the water is heated and stored inside the collector.

These systems are suitable only for warm climates where there is no risk of freezing. In a passive system where the storage is separate from the collector, as water in the collector warms, water flows by natural convection through the collector to the storage tank. A forced circulation system requires a pump to move water from the storage tank to the collector. Most solar water heaters in the United States are the forced circulation type.

There are several types of solar collectors. Most consist of a flat copper plate, painted black, that has water tubes attached to the absorber plate. As solar energy falls on the copper plate and is absorbed, the energy is transferred to water flowing in the tubes. The absorber plate is mounted in a casing that has a clear covering and insulation to protect the absorber plate from heat loss. Other collectors include an integrated collector and storage system and the evacuated tube collector.

Integral collector and storage systems combine the function of hot water storage and solar energy collection into one unit. Evacuated tube collectors produce higher temperature water and are more complex than flat plate collectors. Evacuated tube collectors consist of a series of tubes that contain a heat pipe to absorb solar energy and transfer it to a liquid medium. The tubes are evacuated (vacuum) so that there is very little heat loss from the tube.

Most solar collectors are roof-mounted. Solar water heaters are used for domestic hot water, pool heating and space heating needs.

There are a number of manufacturers of solar water heating systems. Manufacturers can provide information on local dealers and installers. The Solar Rating and Certification Corporation provides evaluations of solar collectors and solar hot water systems.

The evaluation includes an estimate of the performance of different systems based on the location where the system will be used.

Solar water heating systems may require periodic maintenance and have a relatively high initial cost. The payback period however is different depending on the cost of energy for heating water. In areas where electricity is used for water heating, the payback periods are shorter than for areas that use natural gas for water heating.

Care must be taken to guard against freezing of the collector and piping. Solar collectors may have installation limits some communities

An active, flat plate solar collector system will cost approximately $2,500 to $3,500installed and produce about 80 to 100 gallons of hot water per day. A passive system will cost about $1,000 to $2,000 installed but will have a lower capacity.

An experienced contractor should install solar water heating systems. Usually, a roof penetration is required

Solar water heaters save energy and use a renewable resource. By replacing electric energy or fossil fuel use for water heating, environmental carbon emissions associated with water heating are reduced or eliminated. Buy water heater with payday advance service

There are so many reasons why you should take advantage of DIY home solar energy that it’s actually kind of hard to know where to begin. The greatest benefit that leaps out to so many is the opportunity to create an endless amount of free electricity to power your home.

The other benefit will be appreciated by those that are concerned about the carbon footprint that we are leaving on this galactic rock that we inhabit called Earth. Fossil fuels emit pollutants into our atmosphere every time they are used and are a finite source of energy that are not only very expensive but are also being depleted by the day.

The increased demand by developing nations such as China and India are driving the costs of fossil fuels used in the home including heating oil and natural gas higher and higher. Couple that along with the ever present political turmoil in the Mideast and you have a recipe for runaway fuel costs.
Unless you are wealthy and money is no object then a DIY home solar energy system is hands down the way to go. You can go online and purchase an instantly downloadable e-book that contains complete plans for building and installing your own solar panels as well as videos that will walk you through how to do it step-by-step.

Constructing your own home solar energy system is relatively inexpensive, especially when compared to commercially built and installed solar panels. You can build your own photovoltaic solar cells and string them together into a solar panel that is every bit as good as a commercially constructed one for a fraction of the cost.

Commercial solar energy systems for a home of average size can run upwards of $20,000 and above. You can build your own solar panel and install it yourself for about $200 or even under $100. And once more, there are no special skills required to build your own solar panels and all the parts that you will need can be purchased at your neighborhood hardware store.

You can begin your foray into DIY home solar energy slowly by building a single panel which will generate enough electricity to run many of your household appliances. When you begin to become proficient at building the panels you can build more and add them to what you have already created which will of course enhance your ability to generate electricity free of charge.

And just think about this… it is very, very possible to generate enough electricity to completely power your home and no longer have to pay those expensive utility bills. Not only that but you can also go completely off the grid and even produce enough electricity that you can sell it back to the power company for a profit. It’s a beautiful thing isn’t it? And it’s all within your reach.