The Xcalak hybrid system was built by Condumex S.A. de C.V. The generation system
consists of six Bergey Windpower nominally rated 10 kW Excel wind turbines and 11.2 kW of
Siemens PV modules. Energy is stored in two battery strings using 216 GNB Resource
Commander batteries for a combined total of 1738 Ah at 220 volts. The stored energy is
provided to the town’s electric grid via an Advanced Energy Systems (AES) 40 kW sinewave
inverter. A separate diesel generator also powers the community grid independently (must
be manually transferred).