Free illustration materials

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  Male adjusting the temperature of the air conditioner (power saving)
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  Perpetual motion
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  Fluorescent lamp (round-straight tube-bulb) (lighting)
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  Oil plant
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  People who use mobile batteries
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  AC adapter
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  Alessandro-Volta caricature
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  Firewood
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  3P outlet
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  Charging plug for electric vehicles
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  Tank truck
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  Water meter receiver
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  Person who drops the breaker
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  Telephone pole-Telegraph pole
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  Transmission line
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  Wizard of thunder
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  Gas station employee to refuel
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  Hydrogen vehicle
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  Oil in drums
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  Power saving (unplug)
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  Fukushima Daiichi Nuclear Power Plant (after the accident)
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  Eco Cute
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  Town with utility poles
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  Bean charcoal
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  Person who refuels at a self-stand
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  Light bulb
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  Fire-Flame
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  Edison caricature
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  Water Wizard
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  Oil King

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  Power outage (before and after)
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  Alessandro-Volta caricature
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  Thermal power plant
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  Male adjusting the temperature of the air conditioner (power saving)
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  Person with a heavy plastic tank
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  Power saving (unplug)
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  Edison caricature
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  Oil in drums
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  Oil King
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  Person who has the switch off (power saving)
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  Firewood
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  Oil plant