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Sketches of sources of renewable energy (wind turbine, solar/photovoltaic panel, heat/thermal pump) over a simple house drawing

Stock Photo:
Image ID: 106494641
492x500 6.8"x6.9" (72dpi) 125 KB
983x1000 3.3"x3.3" (300dpi) 343 KB
4916x5000 16.4"x16.7" (300dpi) 2.3 MB
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