We design, manufacture and sell direct current, or DC, power systems for applications in the telecommunications, military, electric vehicle charging, cogeneration, distributed power and uninterruptable power supply markets. Our systems provide reliable and low-cost energy to service applications that do not have access to the utility grid (off-grid applications) or have critical power needs and cannot be without power in the event of utility grid failure (back-up power applications). Our product offerings include: DC base power systems. These systems integrate our DC generator with automated controls that are programmed to efficiently charge various battery chemistries to provide backup energy during a power failure. In addition, these systems are also used to provide prime power in off-grid and bad-grid locations to power DC loads in telecommunications towers. DC hybrid power systems. These systems combine our DC base power systems with lithium-ion batteries (or other advanced battery chemistries) to efficiently store energy from DC generator, grid and solar photovoltaic systems. Our DC hybrid power system replaces lead acid systems with a longer-life and higher efficiency lithium batteries equipped with our proprietary battery management system, or BMS, which protects batteries from being over charged or over discharged during daily use. DC solar hybrid power systems. In remote off-grid and bad-grid applications fuel costs of a generator is a significant part of the overall operation cost. Our DC solar hybrid power systems produce and store lower cost energy generated by the solar panels into lithium batteries, thereby reducing overall fuel costs.