<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31416113</termId><termName>pumped storage power plants</termName><termType>PT</termType><termNote><![CDATA[ Power plants using water pumped to and stored at a high elevation during periods of low energy demand, for use when demand is high, when water is released to operate hydraulic turbines to produce needed electricity. ]]></termNote><termCreatedDate>2026-03-30 20:51:58</termCreatedDate><relation><relationType>UF</relationType><termId>31416120</termId><termName>works, pumped storage</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31416114</termId><termName>plants, pumped storage power</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31416115</termId><termName>power plants, pumped storage</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31416116</termId><termName>pumped storage installations</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31416117</termId><termName>pumped storage power plant</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31416118</termId><termName>pumped storage works</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31416119</termId><termName>pumped-storage plants</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31380043</termId><termName>hydroelectric power plants</termName><termType>PT</termType></relation></term>  </Zthes>