Tag Archives: energy storage

Natural Gas is essential for energy storage

Posted on August 12, 2020 by

Preface. In a 100% renewable energy storage system mainly dependent on wind and solar, there needs to be a tremendous amount of energy storage for up to six weeks when there is little wind or sunshine. The only storage now … Continue reading →

Posted in Natural Gas Energy Storage | Tagged , | 9 Comments

Concentrated Solar Power is dying out in the U.S.

Posted on June 12, 2020 by

Preface.  Concentrated Solar Power (CSP) contributes only 0.06 % of U.S. electricity, mainly in California (64 %) and Arizona (24 %) because extremely dry areas with no humidity, haze, or pollutants are required. Of the 1861 MW power they can … Continue reading →

Posted in Concentrated Solar Power, CSP with thermal energy storage, Grid instability, Seasonal Variation | Tagged , , , , , | 2 Comments

Pumped Hydro Storage (PHS)

Posted on October 13, 2019 by

Preface. This is the only commercial way to store energy now (CAES hardly counts with just one plant and salt domes to put more in existing in only 5 states). Though of course hydropower is only in a few states … Continue reading →

Posted in Dams, Energy Production, Hydropower, Pumped Hydro Storage (PHS) | Tagged , , , , | 15 Comments

51 Reasons why wind power can not replace fossil fuels

Posted on February 14, 2019 by

Preface. Electricity simply doesn’t substitute for all the uses of fossil fuels, so windmills will never be able to reproduce themselves from the energy they generate — they are simply not sustainable.  Nor can electricity generate the high heat required … Continue reading →

Posted in Alternative Energy, Energy, Wind | Tagged , , , , , , , , | 1 Comment

Challenges to the Integration of Renewable Resources at High System Penetration

Posted on February 2, 2019 by

Preface.  This overview of challenges for wind and solar written in 2010 is still true today. We are far from being able to reach even a 50% renewable grid (excluding hydropower from the total) given the lack of storage, the … Continue reading →

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Underground pumped hydro storage is the only technology capable of massive storage for renewable electricity

Posted on September 27, 2017 by

[ Picard concludes that “None of the candidate technologies for massive-scale renewable and sustainable generation of ‘‘green’’ electricity deliver it in a form suitable for high-efficiency storage. None of the prospectively-massive storage modes for transformed electricity is at present well … Continue reading →

Posted in Electric Grid, Energy Storage, Grid instability, Hydropower, Renewable Integration | Tagged , | 4 Comments

Wind and solar need natural gas to balance intermittent, variable, and seasonal power

Posted on July 8, 2017 by

[ The highest wind states are getting to be enormously dependent on natural gas to balance wind and solar as this EIA article about California below shows.  Yet conventional natural gas has peaked — half our natural gas– and is … Continue reading →

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How are energy storage batteries coming along? U.S. House hearing 2015

Posted on April 5, 2017 by

[ My favorite quotes from this U.S. House of Representatives session: THOMAS MASSIE, KENTUCKY. I want to say this has been a very enlightening hearing, and it confirms my personal experience, which is batteries are not sexy. Buckets of acid … Continue reading →

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How is California’s AB2514 experiment with utility scale battery storage coming along?

Posted on December 3, 2016 by

[ This is an excellent article by Tod Kiefer about tests of sodium-sulfur batteries, which are the only kind of battery for which there is enough material on earth to make. Battery electric storage is meant to “replace nimble, fast-ramping … Continue reading →

Posted in Batteries, Battery - Utility Scale, Electricity | Tagged , , , , , | 1 Comment

Is large-scale energy storage dead?

Posted on July 18, 2016 by

 April 8, 2016 by Roger Andrews at euanmearns.com Many countries have committed to filling large percentages of their future electricity demand with intermittent renewable energy, and to do so they will need long-term energy storage in the terawatt-hours range. But … Continue reading →

Posted in Energy Storage, Other Experts | Tagged | Comments Off on Is large-scale energy storage dead?