Do you believe it is a good idea to require consumers to save energy or should it be optional?

It is good to encourage energy saving, and people have to pay more when they use more energy. This is a way of encouraging people to save, but if someone wants to pay for more, they can. As long as global warming continues and our electricity comes from burning fossil fuels (releasing greenhouse gas emissions), then governments will worry about it. If the global warming situation becomes too serious to ignore, then governments should legislate.