Integrated FAST/TOOLS, HXS10, and STARDOM Solution for First-of-its-kind Solar Thermal Tri-generation System

NEP Solar logo
Download (253 KB)

Executive Summary

NEP Solar, Ultimo, NSW, Australia
NEP Solar, Ultimo, NSW, Australia

NEP Solar developed, manufactures, and supplies the PolyTrough, a patented parabolic trough solar collector. NEP Solar also provides consulting services and delivers projects from conceptual design through to turnkey supply of solar thermal systems. Industrial heating is NEP Solar's key market where heat, normally generated by burning fossil fuels, is replaced with heat captured from the sun. The typical temperature is up to 250° C, although higher temperatures are possible.

The Urban Power Station, as NEP Solar and EnergyAE have dubbed it, is a first-of-its-kind solar thermal tri-generation system which has been installed in a new building for the Faculty of Engineering and IT (FEIT) at the University of Technology Sydney (UTS). The system comprises four PolyTrough 1200 parabolic trough solar collectors, a thermal storage tank, a 10 kWe organic Rankine cycle (ORC) turbine and a 19 kWr absorption chiller, heat exchangers, pumps, instruments, and a control system. The system can deliver electrical power, chilled water, lower temperature hot water (from the chiller and ORC condenser, for use in household hot water tanks), and higher temperature hot water.

System overview

System overview

Given that this system operates with water at high temperatures and pressure levels, and is located in a building used for teaching, it was essential to have a control system that would be able to safely control the process while allowing researchers to change the configuration and test conditions without having to stop the process. An added requirement was for the researchers to have local and remote access to all process data.

To meet these needs, NEP Solar turned once again to a Yokogawa FAST/TOOLS supervisory control and data acquisition (SCADA) solution. Its functions include a data historian that allows the development team to compare results from the entire testing period and evaluate modifications, thus improving the learning aspect of the project. Yokogawa HXS10 solar tracking controllers are used to keep the solar collectors aligned with the sun and to monitor environmental parameters, and a single Yokogawa STARDOM FCN controller is used for the overall control of both the solar array and all key system equipment including the ORC, chiller, pumps, three-way valves, flow meters, and temperature and pressure sensors.

NEP Solar and UTS plan also to use a collaboration center that incorporates live video feeds to demonstrate this system to other researchers around the world.

The Challenges and the Solutions

The NEP Solar development team had prior experience with the Yokogawa systems, so they continued the partnership with Yokogawa and relied on their local engineering expertise to understand the challenges and supply a flexible, cost effective, and workable control solution.

The development team worked very closely with the Yokogawa engineering team, drawing on the core competencies of both companies to develop solutions for the unexpected challenges that were encountered during the project. The NEP Solar team developed the control strategy and the Yokogawa engineers programmed the controller accordingly.

The use of a single STARDOM controller for the integrated control of the solar field, ORC, chiller, and balance of plant (BOP) facilities enabled significant savings in both space and cost. The FAST/TOOLS SCADA provided an all-in-one monitoring, alarm, data historian, trending, and reporting solution, and enabled easy remote access for offsite use.

The FAST/TOOLS software could be installed on the notebook PCs used by the development team, eliminating the need for costly dedicated servers.

Plant room
Plant room

Customer Satisfaction

With its advanced capabilities, the integrated Yokogawa control solution provides an ideal and highly flexible solution that can easily be customized as the plant evolves.
Johan Dreyer, NEP Solar's Managing Director, said, "The FAST/TOOLS STARDOM solution was perfect for this system as it offered us the flexibility needed to control the system well with plenty of scope for future optimization by the faculty. This system is a first of its kind and is used as a technical demonstrator of a commercially possible solution as well as a learning platform for research and development by the faculty at UTS."

PolyTrough collectors on the roof
PolyTrough collectors on the roof

2014 AIRAH Awards
Johan Dreyer recently commented, “We are pleased to announce that NEP Solar has
just been awarded the Denis Joseph Award for Innovative Use of Solar Energy in HVAC
and Refrigeration category at the 2014 AIRAH Awards.”


  • Power

    In the mid 1970s, Yokogawa entered the power business with the release of the EBS Electric Control System. Since then, Yokogawa has steadfastly continued with the development of our technologies and capabilities for providing the best services and solutions to our customers worldwide.

    Yokogawa has operated the global power solutions network to play a more active role in the dynamic global power market. This has allowed closer teamwork within Yokogawa, bringing together our global resources and industry know-how. Yokogawa's power industry experts work together to bring each customer the solution that best suits their sophisticated requirements.

    See More
  • Renewable Energy

    Renewable energy helps protect the environment and brings both society and industry closer to the goal of achieving sustainability. However, compared to conventional energy sources, there are certain challenges that stand in the way of its rapid adoption, such as higher production costs and greater instability in the supply of power to the grid. As a leading company in the control and instrumentation business, Yokogawa has always striven to help its customers in various industries achieve stable operations and improve productivity in their plants. We provide solutions for renewable energy applications worldwide, thus contributing to the sustainable development goals.

    See More
  • Solar Power

    The sun is an inexhaustible source of clean energy, and humans have used this in a variety of ways down through the ages. Today, solar power generation is a topic of considerable interest all over the world. With more than 100 years of control experience, Yokogawa now offers a fully integrated control and monitoring solution for solar PV and CSP power plants.

    See More

Related Products & Solutions

  • FA-M3

    Featuring ultra high-speed, stable control, link functions and improved network performance, the FA-M3V controller is created by improving every aspect to deliver stable control at the highest speeds.

    See More
  • FCJ All-in-one PLC/RTU

    The brick type model FCJ autonomous controller fulfills the basic requirements of the utility control. It also provides the reliability for the SCADA communication with network redundant capability.

    See More
  • SCADA Software (FAST/TOOLS)

    Originating as the Flexible Advanced System Techniques (FAST) project, FAST/TOOLS today is a comprehensive, fully-integrated SCADA application suite. Powerful and flexible, FAST/TOOLS serves installations ranging from 50-point unit processes to multimillion-point offshore production and pipeline systems that extend over thousands of miles.

    See More