Skip Navigation

the Environmental and Energy Resources Library

Home Browse Resources Get Recommendations Forums About Help Advanced Search

Advanced Adiabatic Compressed Air Energy Storage for the Integration of Wind Energy

The large-scale generation of electrical wind energy is planned in many countries, but the intermittent nature of its supply, and variations in load profile indicate a strong requirement for energy storage to deliver the energy when needed. Whilst pumped hydro storage, batteries and fuel cells have some advantages, only compressed air energy
storage (“CAES”) has the storage capacity of pumped hydro, but with lower cost and less geographic restrictions. Existing diabatic CAES plant lose heat energy from the cycle during compression, and which must be re-generated before the compressed air is expanded in a modified gas turbine. Adiabatic CAES, on the other hand, uses a separate thermal energy store during the compression part of the cycle. During the generation part of the cycle the thermal energy store is used to reheat the air, which is then expanded through a sliding pressure air turbine. This storage
technology offers significant improvements in cycle efficiency and, as no fuel is used, it generates no CO2. This paper describes the work of 19 partners within the “AA-CAES” Project (Advanced Adiabatic – Compressed Air Energy Storage : EC DGXII contract ENK6 CT-2002-00611) committed to developing this technology to meet the current
opportunities in the market.

Cumulative Rating: (not yet rated)
Date Of Record Release 2010-03-04 19:25:02
Alternate Title Proceedings of the European Wind Energy Conference, EWEC 2004, 22-25 November 2004, London UK
Description The large-scale generation of electrical wind energy is planned in many countries, but the intermittent nature of its supply, and variations in load profile indicate a strong requirement for energy storage to deliver the energy when needed. Whilst pumped hydro storage, batteries and fuel cells have some advantages, only compressed air energy
storage (“CAES”) has the storage capacity of pumped hydro, but with lower cost and less geographic restrictions. Existing diabatic CAES plant lose heat energy from the cycle during compression, and which must be re-generated before the compressed air is expanded in a modified gas turbine. Adiabatic CAES, on the other hand, uses a separate thermal energy store during the compression part of the cycle. During the generation part of the cycle the thermal energy store is used to reheat the air, which is then expanded through a sliding pressure air turbine. This storage
technology offers significant improvements in cycle efficiency and, as no fuel is used, it generates no CO2. This paper describes the work of 19 partners within the “AA-CAES” Project (Advanced Adiabatic – Compressed Air Energy Storage : EC DGXII contract ENK6 CT-2002-00611) committed to developing this technology to meet the current
opportunities in the market.
Classification
Resource Type
Format
Subject
Keyword Non-battery energy storage technologies, Flywheels, Compressed air, Pumped water storagE, Energy storage, Adiabatic, CAES, Grid integration, Wind energy, Balancing power, Economic modeling, Electricity markets
Selector Selection Committee
Date Of Record Creation 2010-03-04 19:16:12
Education Level
Date Last Modified 2010-03-04 19:25:02
Creator Chris Bullough, et al.
Language English
Date Record Checked: 2010-03-04 00:00:00 (W3C-DTF)

Log In:





Mission
EERL's mission is to be the best possible online collection of environmental and energy sustainability resources for community college educators and for their students. The resources are also available for practitioners and the public.

EERL & ATEEC
EERL is a product of a community college-based National Science Foundation Center, the Advanced Technology Environmental and Energy Center (ATEEC), and its partners.

Contact ATEEC 563.441.4087 or by email ateec@eicc.edu