There is no need to tear apart your roof to use solar energy. You can make small switches like putting in solar powered outside lights. They charge their batteries during the day, switching on and providing illumination all night.
Demonstrating the 140 Watt polycrystalline solar panel in winter conditions, showing it’s output, effects of shading, and sizing the right MPPT charge controller to …
You might be able to get your solar energy equipment installed for a huge discount or perhaps even free. The government is trying to promote solar energy benefits and many wish to cover apart or all of the costs in return for its installation.
Look into solar powered appliances. There are a number of products that are available that are powered by solar energy. One of the most popular is the solar powered water heaters. Just having one appliance run by solar energy can save you hundreds of dollars each year in energy costs.