Renewable Energy Podcasts

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Posted February 4, 2010
Micro-inverters vs. Central Inverters: Is There a Clear Winner?

In recent years, the solar industry has seen radical change in the inverter space. On the utility side, inverters have been getting bigger in order to accommodate massive, multi-megawatt projects. On the residential side, they've been getting smaller and more adaptable,...

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Posted January 27, 2010
Can Renewables Really Power our Cities?

Over the course of history, the city has evolved from an "agropolis" based on surrounding resources to a "petropolis" reliant on far-away food and fossil fuels. Now, with those environmentally-dangerous energy needs becoming harder to meet, can we make another transition...

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Posted January 20, 2010
Clean Energy Stocks: How Policy Impacts Finance

After a dismal performance at the end of 2008 and into 2009, clean energy stocks faired much better moving into 2010. But the volatility is far from over. Because the cleantech industry is still so new, investors are trying to figure...

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Posted January 12, 2010
The Intersection of Climate Science and Politics in the U.S.

Scientists are telling us that climate change is happening faster than ever thought possible. Meanwhile, fewer Americans believe that climate change is taking place, or that it's caused by human activity. These two factors are working against one another, creating a...

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Posted January 4, 2010
The Real Story of Cap and Trade

In the wake of the Copenhagen talks and the passage of a climate bill in the U.S. House last year, the debate over cap and trade will likely intensify as we move 2010. Unfortunately, the debate in the halls of Congress,...

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Posted December 21, 2009
Renewable Energy 2.0: The Value of Online Marketing

The internet is a ubiquitous part of our culture. In the last decade, we've gotten comfortable doing almost everything online, from trading stocks to sharing every detail of our personal lives. So why then are many renewable energy companies – some...

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Posted November 30, 2009
Why Solar Works

Whether they like it or not, utilities are starting to deploy more solar. Utility support of solar PV and CSP has been one of the most important developments for the industry. In many cases, utilities are supporting solar because the law...

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Posted November 19, 2009
Transmission: Geothermal's Achilles Heel

Now that geothermal is finally on our energy priority list, the industry is seeing a new influx of public and private capital. After more than a decade of almost no activity in the U.S. geothermal sector, we're finally seeing a lot...

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Posted November 12, 2009
Why Geothermal is Both Hot and Cool

Most geothermal development in the near future will come from conventional, medium-temperature hydrothermal power plants. But beyond the next few years, a large number of projects that utilize temperature extremes, both hot and cool, may come online. In this podcast, we'll...

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Posted November 4, 2009
Geothermal: It's Not Just About Drilling Holes

It takes a lot of time and money to build out a geothermal project. Developers can spend millions of dollars and many years just to drill a test well and find a viable resource. Due to the high capital expenditures needed...

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Posted October 30, 2009
CSP: Bringing Solar to the Masses

In order to bring solar to the terawatt scale, we're going to need every solar-electric and solar-thermal technology possible. But the only technology that can deliver large amounts of electricity, heat and hot water at one time is concentrating solar power....

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Posted October 21, 2009
Locking up the Earth's Heat: Geothermal for Jails

Jails are the perfect place for renewable energy systems. Because they are so energy intensive, administrators and taxpayers are always looking for new ways to reduce energy needs and satisfy electrical, heating and cooling demands on site. In this podcast, we'll...

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Posted October 15, 2009
Solar Thermal: Leading by Example

Back in 1979, President Jimmy Carter put a large solar thermal system on the White House, calling on American businesses and consumers to make solar the future, not a "curiosity" or an "example of a road not taken." Unfortunately, six years...

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Posted October 9, 2009
Biomass Thermal Heats Up

For a decade, Europe has been supporting biomass thermal energy, creating a large commercial and industrial market for resources like wood pellets. Here in the U.S., support has been absent; therefore, wood pellets play only a niche role in residential applications....

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Posted October 1, 2009
Making Waste a Part of the Solution

Modern society has been built around disposable products. It seems that nothing is made to last anymore. That has caused an unprecedented build up of waste, increasing environmental problems and social friction over where to put our trash. Beyond reducing consumption...

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