Green Options

Solar Energy. Wind Energy. Now, Wave Energy. Reminds me of Captain Planet.

A Finnish company, AW-Energy, recently signed a $4.4 million (€3 million) contract with the European Union (EU) to implement WaveRoller (wave energy) technology in Portuguese waters. This looks interesting. The location for the project is near a town deemed to be “capital of the waves.”

Bosch, Du Pont and Xerox have joined the Eco Patent Commons, an international effort to speed up the progress of sustainable development.

Their paticipation brings the number of free patents available for use by anyone in the world to 69, more than doubling the original number.

Hosted by the World Business Council for Sustainable Development (WBCSD) the Commons was established in January this year by IBM, Nokia, Pitney Bowes and Sony in response to a growing dilemma among large businesses.

New trends spotted at the American Solar Energy Society conference last week in San Diego (courtesy of Illinois Solar Energy Association President Mark Burger, who attended):

• From Bosch, a new generation of solar flat plate collectors (used in solar thermal water heating applications) that can be mounted on the roof at a lower angle, addressing some peoples’ aesthetic concerns. The panels are also lighter-weight and easier to mount even on high roofs. Low-profile collectors were also

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Editor’s note: As part of our new content partnership with Low Impact Living, we’ll be bringing you tips and tricks from their massive and growing archive of products and projects that can help you save energy, water and money around the house. Today, LIL blogger Jason Pelletier takes a look at tankless hot water heaters. This post was originally published on Monday, April 28, 2008.

Tankless hot water heaters are becoming a must-have appliance in homes these days. They purport to offer many benefits - instant and endless hot water, less wasted space, and a smaller carbon footprint as well. They can even be used to power radiant underfloor heating that is a luxury found in many green homes.

But are they truly the best option? What can you expect from one, and what do you have to worry about with installation? Finally, are there other options available that offer the same benefits without some of the challenges? We’ll try to cover most of that in this piece.