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日本で最も有望な再生可能エネルギーは

太陽光、風力、地熱、水力、バイオマス(生物資源)のうち日本で最もも有望な再生可能エネルギーを日本経済新聞電子版の読書に尋ねたところ、

地熱   :48%
太陽光  :23%
バイオマス:12%
小型水力 :9%
風力   :8%

地熱が48%と圧倒的な支持を集めた。「天候に左右されず安定的」「火山国として活用すべき」との意見が目立った。
太陽光は23%。「どれかに頼るのでなく、地域特性に応じ最適なものを生かすべき」との指摘があった。

再生可能エネルギー普及によるコスト増は68%が「受け入れる」と回答。「原発が危険な以上やむ得ない」といった声の一方で「発送電分離など電力業界の競争促進が必要」との注文が相次いだ。「受け入れない」と答えた読者は「再生可能エネルギーならすべて良しという風潮は疑問」などを理由に挙げた。

発電技術開発担い手にも注目
再生可能エネルギーをめぐる議論は、発電コストをはじめとする数字が前面に出ることが多い。しかし、数字に劣らず重要なのが「担い手」論だ。ソフトバンクのよな新興企業が主役になるのか、既存の電力会社が手掛けた方が普及が進むのか。
技術開発についても、従来は政府系の新エネルギー・産業技術総合開発機構(NEDO)の存在感が大きかったが、カネを使うわりに成果に乏しく、主役交代が必要という声もある。今後再生可能エネルギーをめぐる「だれが」にも注目したい。

日本経済新聞より

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