Advanced Solar Panels is a useful add-on for the Industrial Craft 2 mod. It adds several types of solar panels with various characteristics to Minecraft.
After installing this add-on, you can craft three new solar panels. The simplest of them produces only 10 eu during a sunny day and 1 eu at night and during rain. The most powerful panel will produce 512/64 eu, but it will require much more materials to craft it. Also in the addon there is a special quantum generator that produces an unlimited amount of energy. It is impossible to craft it, such a generator is available only to the server administrator.