ACPI
Energy saving, as does most of the world.
The "produced energy" would most likely be transmitted in the form of an electrical current; you can use standard equipment to measure that. If you manage to measure the voltage, the current, and the power factor, you can multiply everything together to get the power; multiply power by time, and you get energy.
phillips
The most energy saving ceiling fan that is on the market are energy star approved ceiling fans. Those with adjustable speed control and adjustable light dimmers also save energy.
There are great energy saving washers made by GE that are priced cheaper than most.
CTRL+S for most Windows-standard programs.
labor saving
DVI
Home Depot, which is located in most areas, offers options for energy saving cooling systems for your home. You can purchase air conditioners, heaters, and more systems that are energy efficient on their website or in store.
They may emit some energy in that wavelength, but most of their output is in the ordinary visible band.
Something like the 84" Premiere Energy Saving Insulated Curtain will help save energy.
I have no idea, but if you researched more on this topic you could most likely find out.