Testing at around -20c, amazing results.
You don't necessarily have to stick the solar panels in the typical locations you see in the brochures. There only needs to be a small gap of approximately 1" behind the panel for air circulation. You can find interesting positions anywhere on your property that work with the style and design of the surrounding area.
If you invest in a large solar energy system, you could actually make money off of it. If you can pull enough solar power with a collection of solar panels, you may be able to sell your excess electricity to neighbors or even the power company. Contact your local company to see if this could work for you.