Argonne Utilities Research: Energy Storage  
   Information and links for various types of advanced non-traditional energy storage. Argonne Labs (Gov).
   http://www.ipd.anl.gov/energy_partners/advanced.html

CLRC Energy Research Unit  
   Institute for systems to save or store energy, including flywheels.
   http://www.eru.rl.ac.uk/

Electricity Storage Association  
   "A non-profit trade association bringing electricity storage solutions to the power industry" links to a tutorial on Energy Storage Technologies
   http://www.electricitystorage.org/

Flywheels and Compressed Air  
   Page from a series of lecture notes; discusses flywheels and compares them to compressed air for energy storage. Includes formulae to calculate energy stored.
   http://zebu.uoregon.edu/1996/ph162/l10a.html

Energy Storage Council  
   Group of industries and developers to advocate and facilitate the deployment of energy storage technologies. Links to pages of 6 charter members and 2 newer members.
   http://www.energystoragecouncil.org/

EERE: Power - Energy Storage  
   U. S. Department of Energy site with short summaries of compressed air energy storage, superconducting magnet E. S., flywheels, pumped hydro, Utility Battery Storage (UBS) and supercapacitors.
   http://www.eere.energy.gov/EE/power_energy_storage.html

Energy Storage for Power Systems, by A. Ter-Gazarian  
   Page at the Institute of Electrical Engineers, selling 244 page, hardback book.
   http://www.iee.org/Publish/Books/Energy/index.cfm?book=EN%20006

California Distributed Energy Resource Guide: Energy Storage and UPS Systems  
   Summarizes five energy storage technologies: batteries, flywheels, superconductors, capacitors, and compressed air.
   http://www.energy.ca.gov/distgen/equipment/energy_storage/energy_storage.html

Physical Limits of Portable Power Storage  
   MIT Media Lab compares flywheels, compressed air, ultracapacitors, and fuel cells.
   http://aries.www.media.mit.edu/people/aries/portable-power/power.html

Renewable Energy News: Blackout Highlights Solar Energy Potential  
   Postulates hydrogen for energy storage, with photovoltaics, to prevent future blackouts. Includes before and after satellite photographs of recent northeast USA blackout. Register (free) to view full story
   http://www.solaraccess.com/news/story?storyid=4906

"How Blackouts Work" from Howstuffworks  
   Links to "Big Blackouts in US History" and says, "the power grid . . . cannot store any power" Includes US maps.
   http://science.howstuffworks.com/blackout.htm

Energy Storage Technologies Could Help U.S. Avert Blackouts  
   Article from Inside Energy /with Federal Lands
   http://www2.bv.com/news/articles/sep03/energy_storage.htm

Reliability Management and Oversight  
   Part of US DOE study shows (p. B-17) graph of reserve electricity prices moving between 0 and 750 dollars per MegaWatt-hour. [PDF]
   http://tis.eh.doe.gov/ntgs/issuepapers/ISSUE_2.PDF

Energy Storage Unit Ensures Consistent Power Supply in TVA Service Area  
   Describes distributed superconducting magnetic energy storage (D-SMES) unit to control sags and surges in grid. Includes contacts.
   http://www.tva.com/news/releases/julydec02/energy.htm

Wikipedia  
   Free encyclopedia article covers history and reasons, links to related topics.
   http://en.wikipedia.org/wiki/Energy_storage

Renewable energy - Wikipedia  
   portion of article describes need for storage with renewable energy sources.
   http://en2.wikipedia.org/wiki/Renewable_energy#Renewable_energy_needs_a_reliable_and_efficient_storage_system

The Power Delivery System of the Future  
   Target in article from sample issue of the Electricity Journal describes need for storage in the transmission system.
   http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VSS-4BDCC89-5&_user=10&_handle=W-WA-A-A-AW-MsSAYVW-UUW-AUDZZCWYEC-WBYYYEEYZ-AW-U&_fmt=full&_coverDate=02%2F29%2F2004&_rdoc=9&_orig=browse&_srch=%23toc%236270%232004

Fuel Cells, Photovoltaics, Dispersed Generation and Energy Storage  
   IEEE Committee show of 12 slides [PDF]
   http://grouper.ieee.org/groups/scc21/1547/SCC21present200112.pdf

Pumped storage for renewable energy  
   Google sci.energy group discussion compares p. s. to Compressed Air E. S. and asks why the space cannot be used for nuke waste.
   http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=APC%261%270%275765fa42%27df4%40igc.apc.org&rnum=3

The Success of Energy Storage is All in the Timing  
   Compares batteries, flywheels, supercapacitors, and superconductors for seamless power. Includes figures[Electrical Construction & Maintenance]
   http://ecmweb.com/ar/electric_success_energy_storage/index.htm

Principle of a hybrid Compressed Air and Supercapacitors Energy Storage system  
   with Maximum Efficiency Point Tracking. 5-author 8-page pdf of paper describes use of s'caps to increase CAES efficiency.
   http://leiwww.epfl.ch/publications/lemofouet_rufer_cyphelly_barrade_grasser_store_03.pdf

More on Energy Storage  
   College-level class notes include picture of pumped storage facility, comparison of energy densities, and the CAES heat problem.
   http://zebu.uoregon.edu/2001/ph162/l10.html

Can Renewables Sustain Affluent Society?  
   Considers a few renewable energy sources, then addresses 'the storage problem'. Considers batteries, crushed rock, solar ponds, pumped hydro, hydrogen and thermochemical.
   http://www.mnforsustain.org/trainer_t_renewable_sustain_society.htm

Electricity Storage and Renewables?  
   T&D consultant 19 page pdf compares technologies, reasons. From the ESA. [PDF]
   http://www.electricitystorage.org/pubs/2002/Lisbon_May_2002_KEMA.pdf

Energy Storage: General  
   Diagrams of fuel cells, compensated (constant volume) and uncompensated (constant pressure) compressed air, batteries, and pumped hydro.
   http://www.nrme.qld.gov.au/energy/infosite/energy_storage.html

Nuclear Energy Belongs in the Technology Museum  
   says nukes are less needed because energy storage allows renewables.
   http://www.renewableenergyaccess.com/rea/news/story?id=19012

Ancillary Services Conference  
   Jan 19 conference considers “Loads and/or Storage As Suppliers of Regulation” and “Cost Effective Frequency Regulation Using Energy Recycling and Flywheel Energy Storage Systems”
   https://www.euci.com/conferences/january_05/ancillaryservices_0105.htm

PowerCorp  
   Markets 15 Mega-Joule Flywheel system.
   http://www.pcorp.com.au/2003_products/prod_pwrstore_oview.shtml

$Windpower-Energy Storage$  
   17 message thread compares costs for pumped hydro, and batteries, including Vanadium Redox; in context of storage for wind or solar.
   http://groups-beta.google.com/group/sci.environment/browse_thread/thread/905b40bc119dc9f1/c472d685c409fc35

YA Hydrogen article - positive this time  
   212 message thread includes energy storage topics with nuclear vs. Hydrogen and renewables
   http://groups-beta.google.com/group/sci.energy/browse_thread/thread/c491f73069ee4f88/446ada045077dd70#446ada045077dd70

Cape Barren: Wind & Hydrogen  
   Tasmanian projects: wind farms, hydrogen for storage, and a redox battery.
   http://www.fuelcellsworks.com/Supppage1648.html

A Chemist’s Plan to Save Planet Earth  
   Rick Smalley says (in interview) that more money should be spent on research into energy storage. [Discover]
   http://www.discover.com/issues/feb-05/departments/discover-dialogue/

Energy Storage  
   category at Future Energies, on-line magazine. Covers fuel cells, hydrogen, and batteries.
   http://www.futureenergies.com/search.php?query=&topic=10