If you have animals that require electric fencing to contain them, use solar powered fencing units to provide power for them. A great advantage to these systems is that they are completely mobile, and can be easily moved. If you are a horse owner who enjoys overnight horse-camping, the fencer can be easily taken along.
Jonathan Rolande from https://housebuyfast.co.uk talks about installing solar panels and what affect this can have on your property value and saleability.
Be sure mountings on solar energy panels are engineer certified for your area. For instance, if if you're in an area that gets frequent cyclones, the mountings need to be cyclone rated. High-quality systems will be wind certified to ensure they don't blow away in a huge wind storm. Mounting is an important part of the system and not all suppliers regard them that way. Stay alert when buying your system to make sure they have proper certifications.
A solar powered fan for your attic is a good choice if switching completely to solar power is not feasible. The fan will have a temperature sensitive gauge and switch itself on when necessary. This will remove heat and lower the cost of cooling. It's also solar powered, so you don't have to pay to power it.