( ( During ( the ( summer months ) ) ) ( , ( ( when ( ( energy rates ) ( are higher ) ) ) ( , ( water ( ( is ( ( released ( back down ) ) ( through ( ( the generators ) ( for ( hydroelectric ( power production ) ) ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (PP (IN During) (NP (DT the) (NN summer) (NNS months))) (, ,) (SBAR (WHADVP (WRB when)) (S (NP (NN energy) (NNS rates)) (VP (VBP are) (ADJP (JJR higher))))) (, ,) (NP (NN water)) (VP (VBZ is) (VP (VBN released) (ADVP (RB back) (RB down)) (PP (IN through) (NP (NP (DT the) (NNS generators)) (PP (IN for) (NP (JJ hydroelectric) (NN power) (NN production))))))) (. .)))
During the summer months, when energy rates are higher, water is released back down through the generators for hydroelectric power production.
(ROOT (S (NP (NP (DT The) (NN rate)) (SBAR (IN that) (S (NP (NN energy)) (VP (VBZ is) (VP (VBN released)))))) (VP (VBZ is) (VP (VBN known) (PP (IN as) (NP (NN power))))) (. .)))