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Teaming Up for Clean Energy
Low End Solar Produces Megawatts of Awareness
Energy Transition
To many people, it looks like the world is in the midst of an energy transition. What is driving this transition, where are we going, and what can we do?
This energy transition is driven by three seemingly unstoppable trends:
Society's desire to prevent extreme climate change-burning fewer fossil fuels and developing more renewable energy sources.
Little Boxes to Start Your Garden Early
Construction: The basic cold frame is a wooden box with framed glazing on the top. The box must be tall enough to accommodate
DIY SOLAR PART II: SOLAR WATER HEATERS | Sun Like it Hot
If you already live a greener lifestyle by doing some of the simpler things like insulating your home, replacing old appliances with more efficient ones, driving less, and buying locally, then what is the next step? Maybe you can lower your greenhouse gas emissions by installing a solar water heater. Solar water heating is one of the least publicized but most cost-effective renewable energy options. According to Windy Dankoff of Conergy, solar water heaters capture six times more energy than solar electric at a third the cost. This is why solar water heating offers excellent economics.
How Do Fuel Cells Work?
In recent years, you may have seen news items about fuel cells and the coming “hydrogen economy” and wondered what exactly is a fuel cell? A fuel cell is a form of a reactor where we can create electricity through an electrochemical reaction of hydrogen and oxygen. The only by-products of a hydrogen-fueled fuel cell are pure water (H2O) and heat.
Our Sun - The Ultimate Energy Source
At 93 million miles from Earth, our sun is a middling star that provides nearly all the energy on Earth. The only energy sources we have on Earth which do not come from the sun are the tides caused by the moon's gravity, radioactive materials and geothermal energy. The sun provides everything else. All the energy embodied in fossil fuels and biomass is actually the sun's energy stored as carbon.
Visualizing the Future: Hydrogen Economy
What if hydrogen, the most abundant element in the universe, could power everything from automobiles and trucks to homes and office buildings with little or no toxic or greenhouse gas emissions? Welcome to the dream of the "hydrogen economy."
Does it seem like fantasy? For now, perhaps. But with many sharp minds focused on the science and some carefully directed private and public investment, this fantasy could become part of our everyday lives.
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