$($b$)$ Design and size a hybrid wind$-$solar photovoltaic power system for the house by following the procedure listed below:

Draw a schematic diagram of the hybrid system.

Choose a location $($a town or city$)$ and determine the annual average sunshine period $($hours$).$ The annual average sunshine hours can be obtained in the form of monthly data from the monthly internet sources or available data elsewhere. Determine also the annual average wind speed $(\frac{m}{s})$ using Hellman equation. This

$3$

can also be obtained in the form of monthly data from the monthly internet sources or available data elsewhere depending on the height of the location and the Hellman exponent for land, sea or residential area.

Calculate the solar panels and select the suitable ones for your design $($from internet sources or manufacturers' catalogues$).$

Calculate the wind turbine $($take the power coefficient as the Betz limit$)$ and select the suitable wind turbine for your design $($from internet sources or manufacturers' catalogues$).$

Calculate and select the appropriate battery $($battery capacity and number of batteries$)$ from internet sources or manufacturers' catalogues.

Calculate $($amperage and number$($s$))$ and select the charge controller from internet sources or manufacturers' catalogues.

Calculate $($power and number$($s$))$ and select the inverter $($from internet sources or manufacturers' catalogues$).$