swissnuclear is the the nuclear energy section of swisselectric. It comprises representatives of the Swiss electricity supply companies Alpiq, Axpo, BKW, CKW et EGL. This specialist technical section was originally founded in June 1985 under the title of "Unterausschuss Kernenergie (UAK)".

swissnuclear is committed to the safe and economic operation of the nuclear power plants in Switzerland. Its members operate the Swiss nuclear power plants Beznau, Gösgen, Leibstadt and Mühleberg, which together meet some 40% of Switzerland's electricity needs.

With Zwilag and Nagra, the member companies have significant holdings in companies that guarantee the safe and environmentally neutral disposal of radioactive waste.