Switch off unnecessary power consumption. It saves you money, but more important, that amount of power you don’t use, does not have to be produced!
Also, look up the power consumption of your big devices, like fridge, freezer or oven. Often, it’s a good decision, to buy a new device that can do the same as the old one but, with the consumption of less electrical power. Sometimes, the amount of money comes back to you in only a few years of usage because of the saved amount of electrical power. Keep in mind, the price of electrical power increases every year. So, the amount of money also increases every year.
Less consumption of electrical leads to a lower number of needed power plants. Coal plants have an environmental impact by polluting the air. Nuclear power plants are an enormous high risk for the environment and the people. Just in case, an accident takes place, the environment is polluted for decades, if not centuries. I’d like to remind you to the accidents in Fukushima, Japan in 2011 (March, 11th) and Chernobyl, Russia in 1986 (April, 26th).