Posts Tagged ‘energy storage’

h1

Energy storage questions and answers

November 17, 2009

Michael Giberson

Earth2tech offers “3 Questions for 3 Energy Storage Experts.” The three questions:

  • Why is energy storage so essential to the new energy economy?
  • What is the most important use or implementation of energy storage?
  • Which energy storage innovation do you most believe in?

Not exactly hard-hitting, investigative journalist-type questions, but useful in inspiring some informative chatter about what is going on in energy storage.

For my tastes, the answers to the first question over-emphasized the importance of energy storage to the respondent’s vision of the future energy economy. I’d be better sold by an answer that emphasized the potential to reduce costs and improve services to energy consumers.

Of course, the question primes for a wishful-thinking answer.  The difference between me and the three energy storage experts – other than my obvious lack of energy storage expertise – is that I wish for different kinds of things.

To me the answer to “Why is energy storage so essential to the new energy economy?” is that better energy storage eventually allows the withering away of the state’s specialized regulatory apparatus for the electric power business.

Yeah, I know, I’m a dreamer. ;)

h1

“Battery Investing for Beginners”

October 8, 2009

Michael Giberson

John Petersen has written a four-part series of articles on “Battery Investing for Beginners” at AltEnergyStocks (and mirrored at SeekingAlpha).

Don’t miss Petersen’s “How PHEVs and EVs Will Sabotage America’s Drive for Energy Independence.”  I don’t care much one way or another about a “drive for energy independence”, but I love contrarian wisdom well-supported by facts and analysis.

h1

Flywheel technology now ready for takeoff? NYISO tariff changes accomodate energy storage technology

May 20, 2009

Michael Giberson

The Federal Energy Regulatory Commission has approved NYISO tariff changes intended to accommodate participation of flywheel and similar energy storage devices in markets to supply frequency regulation services.  Flywheel developer Beacon Power applauded the change.

The FERC order, linked above, describes a number of changes to the NYISO tariff and operating procedures needed for flywheel technology to work economically in the ISO’s markets. Interestingly, some of the changes reflect ways in which flywheel-based services are superior to traditional generator-based provision of frequency regulation service (much faster response, much more finely controlable), some of the changes reflect limitations in flywheel capabilities relative to other suppliers (resources under consideration could sustain service for only 15 minutes), and some of the changes just reflect ways in which flywheels are different (operators want to bid in the regulation market without also bidding in the energy supply market).

In the NYISO, much of the frequency regulation services needed have been provided by hydro units, but some of it is provided by thermal generating units. The rapid small ups-and-downs in generator output necessary to supply frequency regulation from thermal units typically cause the units to use more fuel and emit more pollutants than otherwise. The addition of flywheel technologies to the mix should lead to a small environmental benefit, too, in addition to reducing the overall costs of frequency regulation.

Follow

Get every new post delivered to your Inbox.

Join 50 other followers