ErP stands for Energy-related Products and is part of EU electronics regulations. Enables power management that reduces power consumption to less than 1 watt. Prevents all components from using power when PC is off or in standby
Glass recycling transforms waste into usable products through cullet processing. Internal cullet comes from manufacturing defects, while external cullet is collected waste. Glass must be purified and separated into different colors for recycling. Heat-resistant glass must be excluded from recycling due to viscosity issues
TRV controls room temperature by regulating hot water flow. Wax motor expands/contracts with surrounding temperature. Valve closes gradually as temperature increases. Must be kept clear of curtains. Should not be installed with room thermostat
Robert Stirling invented regenerator in 1816, improving Stirling engine efficiency. Edward Green patented first successful economizer design in 1845. Green's design used vertical cast iron tubes with water tank
First implemented in Port Arthur, Canada in 1908. First national implementation by Germany and Austria-Hungary in 1916. Only 34% of world's countries currently observe DST. Clocks advance one hour in spring, revert one hour in autumn
Power consumption measured using Kill-A-Watt meter with checkerboard pattern. Tested in SDR with local dimming disabled and HDR with maximum brightness