A common misconception is that solar technology was created in the 70’s. Yet, solar thermal systems have been in use for centuries. In fact, they date back to Roman times when hot water flowing beneath the floors heated not only baths, but also the living space. This simple concept is still being used today in radiant flooring. Solar thermal uses are expanding to areas such as heating and even cooling. However, the main use for solar thermal today is still in generating hot water for the home.

With the rapid evolution of building science, there is growing concern focused on constructing durable structures that effectively manage moisture in the building envelope.  Significant problems, ranging from air quality to mold, are arising due to the confusion about the proper use, installation and compatibility with the variety of new materials available today.

There is an ongoing debate over the impact of manufacturing biofuels. Skeptics argue that using crops for biofuels divert resources away from human consumption, therefore causing a choice in whether the crops are used for food or fuel. This reasoning connects biofuels to global hunger issues. This is based on the claims of some food industry groups that more than a quarter of corn crops are being diverted from food to ethanol production and yet the U.S. corn supply has outpaced demand since 1989. Most people with any amount of human compassion would easily say that food is definitely a higher priority than fuel. Before we oversimplify the situation, let us take a look at the factors.

According to a recently published bulletin from California’s Employment Development Department (EDD) photovoltaic (PV) solar installations are increasing around the country, with some areas like California experiencing dramatic increases. Some reasons for this relate to perpetually increasing energy costs, rebates, federal tax incentives and a gradual decrease in the pricing of solar modules to smaller dealers, installers and DIY customers. Bottom line is that the cost per watt is becoming more affordable.