Carbon Cycle Chemical Reactions Involved: Photosynthesis: Air and water molecules and the energy from the sun to produce a simple sugar such as glucose and oxygen molecules as a by product. During photosynthesis plants use carbon dioxide and produce oxygen.
Similar to shore power for ships, a ground power unit (GPU) may be used to supply electric power for an aircraft on the ground, to sustain interior lighting, ventilation and other requirements before starting of the main engines or the aircraft auxiliary power unit (APU).
The UTS is also configured to use with a UPS (Uninterruptible Power Source), a battery backup. A UPS can provide temporary back up power for immediate needs before starting your generator. For example, you might use the UPS to power your garage door, a few lights, or your computer to check the weather forecast.