Our Technology

GRANEX® High Efficiency Organic Rankine Cycle (ORC) is an exclusive, globally patented enhancement by Granite Power of a technology which has been providing power to industry for over 50 years. It converts waste and low temperature heat to power.

It is the result of extensive research and development by our engineers in collaboration with the University of Newcastle. Granite Power is a remote area low risk producer of low-cost energy producer. It converts surplus or waste heat to power. It recycles heat into electricity. The heat source can be exhaust gas from conventional diesel or gas powered generators, other industrial waste heat, geothermal or solar thermal or a hybrid combination of these heat resources. This heat recovery process increases energy output – up to 40% more than that achieved by conventional ORC technology – and delivers substantial energy cost savings to the end user. The Rankine Cycle is a thermodynamic cycle which converts heat into work. The heat is supplied externally to a closed loop, which usually uses water as working fluid. The Rankine Cycle based on water provides approximately 85% of worldwide electricity production.

The robustness and reliability of GRANEX® is due to having its origins in the Rankine Cycle process of converting heat into electricity which was first rigorously described over a century ago. The Organic Rankine Cycle was developed in the 1960s. GRANEX® is a dynamic breakthrough which has taken this process to a completely new level of output and efficiency. GRANEX® is also based on tried and tested industry equipment including turbo expanders, heat exchangers and feed pumps.

The GRANEX® system is designed to the individual energy requirements of each customer and assembled and pre-commissioned in an off-site workshop. It is delivered to site in 20 or 40 foot container frames and mounted on skids for final re-commissioning.

The delivery/re-commissioning phase is completed in under a week and is carefully managed so it does not interfere with the customers existing business operations. This integrated end to end engineering is part of Granite Powers offering, meaning no distractions from their primary business for the customer. The offering is rounded out by the finance package so that the customer only need consider the power price being offered.

Technology Diagram