They do, but if you are asking why it is not done on a larger scale, it has to do with money. For the current energy companies to switch over to a new technology cost money upfront. This will cut into the business's short term profits, and in big business (which is who owns the energy sectors) the short term profits are valued higher than long term.
its expsensive 717 for life
Because it would be far too costly.
Because renewable energy use does not make for good consumers.
Why cant we get all the power we need from renewable energy sources right now?
Renewable means wind or sunshine, which keep on coming even if we use them to produce energy. So a TV is non-renewable.
Yes because nonrenewable energy can run out and you can use renewable energy for a long time
As of now, no spacecraft are launched with renewable energy all use petrolieum. Many satalittes use solar however to provide electrical power when in orbit
They are sometimes called alternative energy sourcesbecause they are not the ones used now. (Yet!)
It is renewable because you can always raise an object or raise yourself and gain gravitational potential energy. You cannot run out of gravitational potential energy and even now you have some of the the energy because gravity is always pulling you. It is just a matter of how much gravitational potential energy you have. Go on the top Mt. Everest and you will have more gravitational potential energy than most of the people in the world.
It is renewable because you can always raise an object or raise yourself and gain gravitational potential energy. You cannot run out of gravitational potential energy and even now you have some of the the energy because gravity is always pulling you. It is just a matter of how much gravitational potential energy you have. Go on the top Mt. Everest and you will have more gravitational potential energy than most of the people in the world.
Convenience and efficiency
It is renewable because you can always raise an object or raise yourself and gain gravitational potential energy. You cannot run out of gravitational potential energy and even now you have some of the the energy because gravity is always pulling you. It is just a matter of how much gravitational potential energy you have. Go on the top Mt. Everest and you will have more gravitational potential energy than most of the people in the world.
It is renewable because you can always raise an object or raise yourself and gain gravitational potential energy. You cannot run out of gravitational potential energy and even now you have some of the the energy because gravity is always pulling you. It is just a matter of how much gravitational potential energy you have. Go on the top Mt. Everest and you will have more gravitational potential energy than most of the people in the world.
If you are talking about a normal light bulb no, the energy has been used and is now useless