Your goal may be to utilize energy at home without having an impact on the environment. That's a noble goal, but it is technically one that is impossible to achieve. Even so-called "green energy" sources have some impact on our planet. Solar panels, for example, harness energy from an unlimited resource, but manufacturing them still requires the mining of metals, which has some impact on the environment.
Perhaps a better goal is to reduce your environmental impact with your energy choices. That's a goal you can continually work towards by making more responsible choices. Check out the articles on this website, which we created to help educate caring people like you about the connection between energy and the environment.