Complex sentence: Rossi said in an October 2015 interview that there have been US $3 billion worth of pre-orders for the Energy Catalyzer, and that if the results of a one-year contractual test period ending February 2016 are positive, manufacturing will begin.
Split into simpler sentences: Rossi said in an October 2015 interview that there have been US $3 billion worth of pre-orders for the Energy Catalyzer. If the results of a one-year contractual test period ending February 2016 are positive, manufacturing will begin.