Solar panels can be installed on your home and save you thousands a year in energy.

However, your house is not the only place they can be applied. You can save money and help preserve the environment by using solar panels in a number of outside-the-home applications.

Some smartphone cases come with solar panels on the back. When the panel faces the sun, it can generate electricity and charge your phone. It’s ideal for those who spend a lot of time on the road or doing outdoor recreation.

It sounds like something from a science fiction novel, but some boats have been designed to run entirely on solar panels and accessories. There’s no need for fuel or oil because the electricity generated by the sun alone can operate everything from the motor to the appliances on board. This technology continues to develop, and there are now some boats that can go on long-range trips without using any harmful fossil fuels.

Rather than letting your car idle while camping so your devices can charge, you can use solar energy. There are a number of solar-friendly devices designed just for campers, including solar-powered tents, charging stations, cook stoves and more. There’s no more need for propane tanks.

4. Flashlights

Say goodbye to expensive batteries that can explode and pollute the environment. Instead, you can simply leave your flashlight outside or near a window where it will store solar energy for use in an emergency or just when you’re trying to see in the dark.