Handbook of Energy Storage for Transmission or ... - W2agz.com
Handbook of Energy Storage for Transmission or ... - W2agz.com
Handbook of Energy Storage for Transmission or ... - W2agz.com
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EPRI Proprietary Licensed Material<br />
Regenesys Electricity <strong>St<strong>or</strong>age</strong> Technology<br />
Figure 8<br />
Exteri<strong>or</strong> and Interi<strong>or</strong> Views <strong>of</strong> Progress with Construction <strong>of</strong> Regenesys <strong>Energy</strong> <strong>St<strong>or</strong>age</strong> Plant at<br />
Columbus Air F<strong>or</strong>ce Base Site<br />
Commercialization Issues<br />
The initial target market <strong>f<strong>or</strong></strong> Regenesys plants is utility-side applications requiring 100MWh,<br />
10MW capabilities <strong>or</strong> m<strong>or</strong>e. The applications <strong>f<strong>or</strong></strong> which such energy st<strong>or</strong>age plants will be used<br />
are addressed in the next section <strong>of</strong> this chapter. The <strong>com</strong>mercialization strategy being adopted<br />
by Innogy is, we understand, in the process <strong>of</strong> being changed, although the two demonstration<br />
plants imply an approach to <strong>com</strong>mercialization that cannot be changed too dramatically. The<br />
biggest market and <strong>com</strong>mercialization hurdles appear to be:<br />
• Being able to sustain the financial <strong>com</strong>mitment <strong>of</strong> Innogy, and now RWE, through what will<br />
probably be a long period <strong>of</strong> time in which the technology and the manufacturing will have to<br />
be refined.<br />
• A relatively limited market, since there may not be a great number <strong>of</strong> potential customers<br />
with sites that are economically attractive.<br />
• A changing “utility” market place, in which the maj<strong>or</strong> players are struggling to adapt to<br />
deregulation and re-regulation.<br />
• An unknown role <strong>f<strong>or</strong></strong> distributed resources (DR), and an unaccepted place <strong>f<strong>or</strong></strong> energy st<strong>or</strong>age<br />
in the DR marketplace, particularly in relation to renewable resources which are relatively<br />
expensive.<br />
Applications<br />
Introduction<br />
Innogy, as one <strong>of</strong> the maj<strong>or</strong> generating <strong>com</strong>panies in the United Kingdom, started into the<br />
process <strong>of</strong> developing an electricity st<strong>or</strong>age technology with the understanding that st<strong>or</strong>age had<br />
intrinsic value to a generating utility. Innogy analysts also concluded (as others be<strong>f<strong>or</strong></strong>e have<br />
done) that two <strong>or</strong> probably m<strong>or</strong>e applications will have to be addressed at any given site to give<br />
an attractive benefit to cost ratio. The nature <strong>of</strong> the Regenesys technology, which involves<br />
st<strong>or</strong>age <strong>of</strong> inexpensive active material in external tanks, makes <strong>com</strong>bination <strong>of</strong> both long<br />
discharge time and sh<strong>or</strong>t discharge time applications possible. In fact, Innogy have <strong>of</strong>ten<br />
claimed that the reason <strong>f<strong>or</strong></strong> selecting Regenesys was that m<strong>or</strong>e st<strong>or</strong>age capacity could be added to<br />
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