1. Describe in words the main features of the curve showing how the power output of a wind turbine depends on the wind speed.
2. Define the following four terms, with reference to your description of the power/wind-speed curve: cut-in wind speed, rated wind speed, shut-down wind speed, and rated power.
3. Briefly explain the function of a heat pump.
4. Describe the main features and mode of operation of a ground source heat pump (GSHP) system for space heating in a domestic building.
5. List TWO merits of the use of GSHP systems for space heating.