<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31309438</termId><termName>solar power</termName><termType>PT</termType><termNote><![CDATA[ The use of the sun's energy to provide heating or to generate electricity. ]]></termNote><termCreatedDate>2026-03-30 20:23:20</termCreatedDate><relation><relationType>UF</relationType><termId>31309439</termId><termName>ambient energy</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31309440</termId><termName>energy, ambient</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31309441</termId><termName>power, solar</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31309442</termId><termName>solar energy</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31300104</termId><termName>energy resources</termName><termType>PT</termType></relation></term>  </Zthes>