CHP Gains Stature as Efficiency Measure

By Elisa Wood

June 19, 2008

Combined heat and power is a form of alternative energy that has been available for many decades. Yet it’s remained below the radar screen in policy discussion about our energy future.

However, it appears to be gaining new stature as lawmakers and regulators seek ways to make energy use more efficient.

Also called cogeneration, the technology creates both electricity and heat in one unit. Most power plants throw away two-thirds of the energy consumed in production. But CHP plants use the excess energy to heat, cool or humidify the building. As a result CHP reclaims one-third of the energy that would otherwise be lost.

In addition, CHP plants are usually built very close the factory, hospital, college or office building they serve. So electricity is not lost as it travels long distances over transmission lines, as is often the case with large, central power plants that serve many consumers and businesses.

Taking notice of CHP’s virtues, some states have created portfolio standards that encourage its development. The standards require that utilities use a certain amount of alternative energy to meet efficient or clean energy targets. This approach has been highly successful over the last several years in spurring development of wind, solar and other green energy sources in the US.

Now eight states allow part of the requirement to be met through installation of CHP. In Connecticut, for example, a factory, school other large energy user can install CHP to meet its heat and power needs and receive a kind of tradable credit for doing so. The energy user then can sell the credit to a utility that needs to meet state requirements.

In addition to Connecticut, the eight states are Colorado, Hawaii, Nevada, North Carolina, North Dakota, Pennsylvania, and Washington. These states should serve as interesting testing ground to see if portfolio standards accelerate use of CHP as they have wind and solar energy. We encourage those interested in CHP to check out the Environmental Protection Agency’s CHP partnership, an agency that is playing a strong role in encouraging use of the resource. See http://www.epa.gov/chp/

Energy Efficiency: Not a Sound Bite Business

By Elisa Wood

I’m a star at the neighborhood playground because I write about energy. Let me explain. I have a young son, and often find myself next to the swings talking with other parents. Inevitably we talk about work. Inevitably it comes up that I know a little about energy. And inevitably I'm surrounded by a crowd that wants to know-- demands to know--why the US doesn’t use more green energy.

They are looking for a sound bite answer, like “It is Bush’s fault” or “Exxon is evil.” Instead, I find myself grasping for an answer, even though I’ve been following this business for 20 years -- or more accurately – because I’ve been following this business for 20 years.

Overhauling a nation’s energy infrastructure is no easy task and far more complex than people realize. And unfortunately, this lack of understanding, among politicians and the general public, is what gets us into trouble. Since the 1970s, we have swung back and forth from urgency to complacency about energy independence. We forget about the problems created by our over-dependence on fossil fuels once gasoline prices drop. We seem to operate under the false impression we can fix our energy problems near instantly should we really need to act.

A new World Bank book underscores the complexity of revamping energy infrastructure, in this case, energy efficiency in three countries where demand is growing rapidly. Called “Financing Energy Efficiency: Lessons from Brazil, China, India and Beyond,” the book finds enormous energy savings opportunities in these countries, which are among the top 10 energy consumers in the word. But to realize the savings, the countries must develop “large numbers of relatively small projects scattered among hundreds of thousands of industries and building complexes.”

Needless to say, the logistics are daunting. Moreover, efficiency projects tend to lose when competing for up-front capital against power plants because efficiency is about saving money – a more difficult concept to sell than making money.

But interestingly, it is not lack of capital in these countries that thwarts efficiency but “inadequate organizational and institutional systems for developing projects and accessing funds.” In other words, efficiency is not on the main agenda of business and government.

The challenge for governments is to influence the broad technology choice decisions of investors and encourage them to adopt energy efficiency solutions, according to the book. The problem, the authors say, needs to be fixed on the institutional level and must consider the unique local economies. The book attempts to provide a framework for creating financing systems.

With many case studies on ways efficiency has been financed in various countries, this nearly 300-page book makes it no easier to come up with a quick sound bite for why it is a struggle to green our energy supply. But the authors do give some valuable industry perspective on how to get there as the world prepares for a 53% increase in energy demand over the next two decades. It is worth a look. Written by Robert P. Taylor, Chandrasekar Govindarajalu, Jeremy Levin, Anke S. Meyer and William A. Ward, the publication is available at http://www.esmap.org/filez/pubs/211200830655_financing_energy_efficiency.pdf

Visit energy writer Elisa Wood at www.realenergywriters.com and pick up her free Energy Efficiency Markets newsletter.