The paper gives a concise overview of the analyses and studies which have supported the first Italian "energy intensive" storage installations. These studies have covered chemistry, electrotechnics, fire behaviour and risk assessment. The battery characteristics are described in the paper, highlighting the technical solutions put on to ensure safe operation and environmental compatibility. In particular, the paper presents the safety enrichments which have been implemented, on Terna specific request, for the Italian installations preventing the fire spreading between the modules and redounding the general safety features of sodium-sulphur (Na-S) technology. The safer behaviour of the new "modules" has been confirmed by some tests commissioned by Terna Storage and conducted in contradictory in Japan. The Italian Academia and Terna Storage have carried out a risk assessment of Na-S units (composed of elementary cells, modules and 1.2 MW units, the latter also called assembly) and relevant accidents due to endogenous and exogenous fire, earthquake, flooding, direct and indirect lightning, sabotage, hunting activity, possible impact of aircraft. Furthermore, the European regulation which can be applied to the stationary application of sodium batteries is considered in the paper to take into account the hazardous substances.
Large scale Italian energy intensive storage installation: Safety issues and environmental compatibility
Andriollo, M.;Benato, R.;Dambone Sessa, S.;
2016
Abstract
The paper gives a concise overview of the analyses and studies which have supported the first Italian "energy intensive" storage installations. These studies have covered chemistry, electrotechnics, fire behaviour and risk assessment. The battery characteristics are described in the paper, highlighting the technical solutions put on to ensure safe operation and environmental compatibility. In particular, the paper presents the safety enrichments which have been implemented, on Terna specific request, for the Italian installations preventing the fire spreading between the modules and redounding the general safety features of sodium-sulphur (Na-S) technology. The safer behaviour of the new "modules" has been confirmed by some tests commissioned by Terna Storage and conducted in contradictory in Japan. The Italian Academia and Terna Storage have carried out a risk assessment of Na-S units (composed of elementary cells, modules and 1.2 MW units, the latter also called assembly) and relevant accidents due to endogenous and exogenous fire, earthquake, flooding, direct and indirect lightning, sabotage, hunting activity, possible impact of aircraft. Furthermore, the European regulation which can be applied to the stationary application of sodium batteries is considered in the paper to take into account the hazardous substances.Pubblicazioni consigliate
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