energy electricity and power saving concept ecology sustainable development efficient consumption conservation nature |
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| navigate by keyword : awareness bill blackboard chalkboard change climate concept conservation consumption cost cut development eco ecology economy efficiency efficient electric electricity end energy environment environmental friendly global green hand icon less lightning metaphor money natural nature power preserve price protection reduce resources responsibility save saving shortage smart solar stop sustainability sustainable symbol warming wasting wiping world |
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| Energy, electricity and power saving concept. Ecology, sustainable development and efficient consumption. Conservation of nature. Electric bill. Hand wiping off lightning icon. Blackboard, chalkboard |
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