I I live in a house with a stream running next to it. Because my house is quite high, I also get a lot of wind. One of my roofs faces south. 

Now I want to invest in renewable energy. When I ask friends and family what they think I get many different opinions. After some research I have come to the conclusion that I can implement 2 types of renewable energy. But which 2 would be best? Please also provide a prediction of wattages and return on investment.
Implementing a combination of renewable energy sources such as solar panels and wind turbines can be a great way to increase your reliance on renewable energy and reduce your carbon footprint. However, the best combination of renewable energy sources for your specific situation will depend on a number of factors, such as your location, the amount of available space, the amount of available resources, and the amount of energy you need.

To make an informed decision, it would be best to hire a qualified professional or company that specializes in renewable energy system design and installation. They can help you determine the best combination of renewable energy sources for your specific situation, as well as provide predictions on the expected wattages and return on investment.

In general, however, solar panels are a popular and efficient choice for generating electricity from sunlight, while wind turbines can be effective in areas with high wind speeds. The combination of the two can help to ensure that you have a reliable source of energy throughout the year, even during cloudy or low-wind periods.

It's worth noting that the installation and maintenance of renewable energy systems can be expensive, but the long-term savings on energy costs and the reduced environmental impact can make them a worthwhile investment for the right situation. You may also be eligible for government subsidies or tax breaks for installing renewable energy systems, which can help to offset the initial costs.
Lets say I went with all three i.e wind, solar and water turbine generated electricity. Give me some numbers and figures for a number of different setups to achieve enough energy for 2 homes.