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cost of fuel and lighting; cost of heat and electricity; energy bill; utility cost
光熱費の値上がりで毎月の出費が増えてしまった。
Monthly expenses increased due to rising utility costs.
一人暮らしでも光熱費は意外とかかるものだよね。
Even living alone, utility costs are surprisingly high.
節約のため光熱費を抑える工夫をしている最中だ。
I'm in the middle of devising ways to reduce utility costs to save money.