Bereni (; Hungarian pronunciation: ) is a commune in Mures County, Transylvania, Romania. It became an independent commune along with 6 other villages when it split from Magherani (Nyárádmagyarós) in 2004. It has an absolute Székely Hungarian majority. The commune is composed of seven villages:

• Bâra / Berekeresztúr
• Bereni / Székelybere
• Cându / Kendo
• Drojdii / Seprod
• Eremieni / Nyárádszentimre
• Maia / Mája
• Marculeni / Márkod

The CANDU (short for CANada Deuterium Uranium) reactor is a Canadian-invented, pressurized heavy water reactor. The acronym refers to its deuterium-oxide (heavy water) moderator and its use of (originally, natural) uranium fuel. CANDU reactors were first developed in the late 1950s and 1960s by a partnership between Atomic Energy of Canada Limited (AECL), the Hydro-Electric Power Commission of Ontario (now Ontario Power Generation), Canadian General Electric (now GE Canada), and other companies. All power reactors built in Canada are of the CANDU type. The reactor is also marketed abroad and there are CANDU-type units operating in India, Pakistan, Argentina, South Korea, Romania and China. In October 2011, the Canadian Federal Government licensed the CANDU design to Candu Energy (a wholly owned subsidiary of SNC-Lavalin), which also acquired the former reactor development and marketing division of AECL at that time.