LUZ II’s DPT technology consists of a number of solar clusters, each including a power tower surrounded on 3600 by an array of heliostats. Heliostats are flat glass mirrors which track the sun and reflect sunlight onto a receiver. The receiver is located on the top of the power tower. Power towers are linked together by pipelines to a central location where electricity is generated and sent to a power grid.
The DPT 550 technology heats water to superheated steam at pressures up to 160 bar and temperatures up to 565  C. A high efficiency steam turbine converts the superheated steam to electricity, which is sent to a power grid. The DPT 550 Technology is more than 40% efficient in thermal to electric conversion. Each power plant is designed to meet zero water discharge requirements. Both 100 MW and 200 MW power plants are currently being designed.

The Power Tower
The height of the power tower is generally between 60 and 80 meters, but varies according to the site and climactic conditions. The receiver is located on the top of the power tower. Heated water travels in pipes from the power tower to a central location.

The Heliostats
The heliostats are flat mirrors of standard glass with 7.3 m² of surface area. They reflect sunlight onto a receiver located on top of a power tower. Each heliostat is a sophisticated assembly, but all of its components are standard products readily available. Consequently, the LUZ II mirrors cost much less to manufacture than the parabolic mirrors used by most CSP (Concentrated Solar Power) thermal technologies.
Each heliostat can rotate in two axes (elevation and azimuth), enabling it to accurately track the sun and maintain the reflecting focus on the receiver. The aiming points are calculated by a computer program and updated every 15 minutes.

The Receiver
The receiver is a radiant forced circulation, drum type, steam boiler. The solar boiler application is unique in its response to the daily and seasonal variations in solar flux distribution. However, the boiler is designed and built according to proven steam boiler design criteria using standard materials and components. Panel radiation heat flux is kept within levels standard in the boiler industry. The boiler's source of radiation is the sun reflected onto the receiver by fields of heliostats. The boiler can superheat steam at a pressure of 140 -160 bar and a temperature of 550 - 565 degrees Celsius. One DPT 550 cluster is equivalent to one standard boiler.

Conversion to Electricity
Solar thermal power conversion to electricity is performed in a conventional Rankine cycle steam turbo-generator. The steam turbine consists of a 145 bar, 540º Celsius steam inlet, a mid pressure reheat, five to six extractions and an air cooled condenser.
The step-up transformer and switch yard interconnect to utility transmission lines at all required kV levels and electricity quality conditions. The thermal to electric conversion is above 40% net efficiency. This figure is the state of the art in the utility power plant market for similarly sized steam turbines.