A 20 kW electric roof top A/C unit (RTU) is 10 years old, and has a COP of 2.0 . It operates at full load for 3,000 hours a year. The electric cost is $0.10 per kWh. If this to unit to be replaced with a new 20 kw, what is the minimum value of COP for the ?new unit to reach an annual savings of $1,500 3.5 4.0 4.5 Can not be determined

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A: The given figure is shown below:

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Q: Talk about the history of Renewable Energy in 300 line.

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Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.