Hydrochemistry and energy storage in aquifers - NHV.nu
Hydrochemistry and energy storage in aquifers - NHV.nu
Hydrochemistry and energy storage in aquifers - NHV.nu
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4 IMPLEMENTING AGREEMENT ENERGY STORAGE<br />
The Implement<strong>in</strong>g Agreement Energy Storage, <strong>in</strong> full: "Implement<strong>in</strong>g Agreement for a<br />
Programme of Research <strong>and</strong> Development on Energy Conservation through Energy<br />
Storage", has been concluded <strong>in</strong> 1978. This Implement<strong>in</strong>g Agreement has been concluded<br />
because it was recognized that <strong>energy</strong> <strong>storage</strong> can play an important role <strong>in</strong> the sav<strong>in</strong>g of<br />
<strong>energy</strong> as well as the application of renewable <strong>energy</strong> sources.<br />
The first project with<strong>in</strong> the framework of the Implement<strong>in</strong>g Agreement Energy Storage<br />
concerned an evaluation of large scale <strong>energy</strong> <strong>storage</strong> systems. From this evaluation it<br />
appeared, among other th<strong>in</strong>gs, that heat <strong>storage</strong> <strong>in</strong> <strong>aquifers</strong> is the least expensive technology<br />
for <strong>storage</strong> of thermal <strong>energy</strong> on a large scale, see figure 1 (IEA, 1981).<br />
1. UNOERGROUO CONCRET TANK<br />
2. MAN-IIAOE AQUIFER<br />
3. STEEL OR CONCRET TAtiK AT THE SURFACE<br />
4. AQUIFER STORAGE<br />
5. LARGE OIAMETER VERTICAL RESERVOIR<br />
04- 0 f -<br />
10' i05 m) WATER EQUIVALENT<br />
Figure 1 Cost of <strong>energy</strong> <strong>storage</strong> as a function of water volume