Plug-in solar panels can be fitted to balconies, walls and gardens, but safe installation depends on the right location, permissions and connection method.

Solar panels can help you save money on energy costs, but it takes years for those savings to pay off. Here's why it takes so long to break even financially.

For millions of households, the question is not just whether solar panels are worth the cost. But instead, if adding solar panels is even possible at all. Solar has long been sold as a home upgrade ...