Our products allow our customers to get the most from their investment in renewable energy, providing environmental sustainability. They are also designed to be affordable, reliable, and maintainable, providing financial sustainability.
The fundamental task of any electric power system is to deliver electricity reliably and at a well regulated frequency and voltage. Sustainable Power Systems has created a suite of products that work together to achieve this end.
Hybrid System Supervisory Controller
The Hybrid System Supervisory Controller (HSSC) is the heart of a hybrid micro power grid. The HSSC is a fully integrated control panel incorporating proprietary software that orchestrates the operation of a wide variety of power system components, including diesel generators, wind turbines, photo-voltaic arrays, secondary loads, and energy storage devices. The HSSC also provides data-logging, report generation, and remote monitoring capability, thereby ensuring the long term viability and supportability of our remote systems.
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Secondary Load Controller
Secondary loads, such as electric boilers, are needed in hybrid power systems to dissipate excess renewable energy and maintain system stability. Our Secondary Load Controller (SLC) precisely regulates power flow to an electric boiler by rapidly switching an array of solid-state relays connected to individual boiler heating elements. Because of its very fast response, the SLC can actually control the frequency of the micro-grid, allowing the diesels to be shut down during periods of high wind, reducing fuel consumption and diesel maintenance costs. During diesel operation, the SLC minimizes load fluctuations on the diesel generator, prolonging its life and improving frequency regulation.
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Synchronous Condenser
Synchronous condensers are a well-established technology for providing reactive power and correcting power factor in industrial settings. Sustainable Power Systems’ Synchronous Condensers are specially designed to meet the needs of hybrid renewable power systems. When paralleled with diesel generators, they assist the diesels in regulating voltage. During high wind and/or solar periods, the diesel generators are turned off, and the Synchronous Condenser handles voltage control on its own.
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Grid-Forming Inverter
Energy storage (usually batteries or flywheels) is increasingly used in renewable hybrid power systems to increase reliability of supply, improve power quality, and minimize diesel run time and fuel consumption. Unlike most industrial sized power converters, which must be grid-connected to operate, our Energy Storage Power Converters are specifically designed for off-grid applications, where they can either be paralleled with diesel generators or operate standalone. They also use proprietary algorithms to manage battery state of charge and maximize battery life. We also plan to leverage our expertise in storage systems to develop storage converters for on-grid distributed generation applications, allowing the Company to expand its market and participate in the Smart Grid revolution.
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