GE Hitachi Nuclear Energy has signed the initial agreement with Nuclear Power Corporation and BHEL to build reactors here. The three companies will collaborate to build advanced boiling water reactor (ABWR). After this initial agreement, they will proceed with techno-commerical aspects. It may be noted, NPC is also in talks with Westinghouse Electric Company for AP-1000 reactors and with Russian Atomstroyexport for VVER-1000 reactors. The nuclear reactor market is estimated at USD 175 billion.