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オール電化への切り替え",{"type":21,"tag":22,"props":1926,"children":1927},{},[1928],{"type":26,"value":1929},"オール電化住宅とは、調理や給湯、冷暖房などすべてのエネルギーを「電気」で賄う住まい。ガスや灯油を使わず、太陽光発電でつくったクリーンな電力を直接利用できる点が大きな魅力です。 特に、エコキュート（ヒートポンプ給湯器）は、深夜電力や太陽光電力を効率的に利用できるため、ガス給湯器よりもランニングコストを大幅に抑えられます。",{"type":21,"tag":22,"props":1931,"children":1932},{},[1933,1935,1938],{"type":26,"value":1934},"また、IHクッキングヒーターは立ち上がりが早く、火を使わないため安全性も向上。家事効率や安全面でもメリットがあり、万が一の停電時にも太陽光発電や蓄電池から一部電力を賄えます。",{"type":21,"tag":57,"props":1936,"children":1937},{},[],{"type":21,"tag":57,"props":1939,"children":1940},{},[],{"type":21,"tag":1391,"props":1942,"children":1944},{"id":1943},"contents-4-4",[1945],{"type":21,"tag":22,"props":1946,"children":1947},{},[1948],{"type":21,"tag":29,"props":1949,"children":1950},{},[1951],{"type":26,"value":1952},"4. 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FIT制度と売電単価の仕組み",{"type":21,"tag":22,"props":2020,"children":2021},{},[2022],{"type":26,"value":2023},"FIT（固定価格買取制度）は2012年にスタートし、太陽光発電の普及を大きく後押ししてきました。これは、発電して使い切れなかった電気（余剰電力）を電力会社が10年間、定められた価格で買い取ってくれる仕組みです。売電単価は年々引き下げられていますが、2025年7月現在の新規契約分では1kWhあたり15円程度が目安となっています。 例えば、3.5kWシステムを設置し、年間1,500kWhを売電できれば、 15円 × 1,500kWh ＝ 年間22,500円程度の売電収入が得られる計算です。",{"type":21,"tag":22,"props":2025,"children":2026},{},[2027,2029,2032],{"type":26,"value":2028},"この収入は導入から10年間は安定して見込めるため、初期投資の回収期間短縮にも大きく貢献します。ただし、売電単価は今後も下がる見込みのため、現在は「売電よりも自家消費重視」が主流となりつつある点には注意が必要です。",{"type":21,"tag":57,"props":2030,"children":2031},{},[],{"type":21,"tag":57,"props":2033,"children":2034},{},[],{"type":21,"tag":1391,"props":2036,"children":2038},{"id":2037},"contents-5-2",[2039],{"type":21,"tag":22,"props":2040,"children":2041},{},[2042],{"type":21,"tag":29,"props":2043,"children":2044},{},[2045],{"type":26,"value":2046},"2. 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