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

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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.”


Related Products & Solutions


초고속, 안정된 제어, 링크 기능 및 향상된 네트워크 성능을 특징으로하는 FA-M3V 컨트롤러는 모든면을 개선하여 최고 속도로 안정적인 제어를 제공함으로써 만들어졌습니다.


FAST(Flexible Advanced System Techniques) 프로젝트로 시작된 FAST/TOOLS는 포괄적인 완전 통합형 SCADA 애플리케이션 제품군입니다. 강력하고 유연한 FAST/TOOLS는 50포인트 단위공정에서 수천 마일이상 확장되는 수백만 포인트 규모의 offshore 생산 및 Pipeline 시스템에 이르는 설비를 제공합니다.

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.


Field Control Node(FCN) 자율 컨트롤러의 저전력 소모 모델은 전력이 부족한 외딴 곳에서도 까다로운 요구 사항을 충족합니다.

Process Control PLC/RTU

프로세스 공장에서 원격 위치에 이르기까지 당사의 공정제어 PLC 및 원격 터미널 장치 (RTU)는 사용자가 운영의 우수성을 극대화하도록 돕습니다.


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