GGL offers efficient power generation options for recovered energy in industrial applications and binary geothermal applications. Medium and low temperature heat sources are our targeted applications.

Recovered energy power generation includes capturing unused waste heat from industrial processes and converting it to electricity for sale to third parties or for use on site without additional fuel costs and zero emissions.

Binary geothermal power generation includes utilizing the heat from liquid dominated geothermal resources to produce power more efficiently than ever before.

GGL is ready to analyze your energy-efficiency or renewable energy project. Download the data sheet that best describes your project, send it to us and we will use your project information to assess its energy generation potential.

Steel and Other Metal Melting Works

The effectiveness and reliability of the Kalina Cycle® technology has been proven in the steel manufacturing industry, with more than a decade of exceptional operating performance. Steel Works in Japan, operated by Sumitomo Metals has been successfully recovering waste process heat and generating 3,450 kW of sustainable power since 1999.

Oil Refineries

Commissioned in 2005, the Fuji Oil 4 MW waste heat plant uses heat from two sources, a lightweight hydrocarbon vapour and low pressure steam as part of a waste heat-to-electricity project within the Fuji Oil refinery in Chiba, Japan. The project is the first successful integration of a waste heat generation technology with the Eureka process for hydrocarbon processing.

Gas Processing and Gas Turbines

Gas turbine driven compressors and generators produce exhaust heat ideally suited as a source for power generation using the Kalina Cycle® . This application was demonstrated over a 5-year period at the 6.5 MW Canoga Park demonstration project in southern California. In this application, the Kalina Cycle® working fluid is directly heated with the exhaust gases exiting the gas turbine. No intermediate heat transfer fluid is required, making the power cycle simpler and more efficient to operate.

Cement and Lime Kilns

Cement and lime production are two of the most energy intensive processing industries, both are increasingly driven to use recovered energy power generation systems for the capture of the large amounts of waste heat. In many world regions, energy expenditures account for 50% to 60% of the direct production cost of cement. In cement production recoverable heat is available in clinker coolers hot air and preheater gases. In lime production recoverable heat is available in lime cooler hot air.

In June of 2011, Global Geothermal established a exclusive licensing agreement with the leading cement industry EPC provider, FLSmidth. With main offices in Denmark, India, and USA, FLSmidth is now the exclusive worldwide EPC provider of Kalina Cycle® turnkey waste heat recovery solutions to the cement industry.


The Orkuveita Húsavíkur Kalina Cycle® plant began generation operations in July 2000. In the performance test conducted after the plant’s shakedown period, the plant’s net output exceeded the design output. The plant reliably produces more than 1,600 kW at a notable level of efficiency and availability. The Orkuveita Húsavíkur power plant is the first geothermal application of the Kalina Cycle® and the first Kalina plant in Europe. On June 2, 2009, the German Environmental Ministry inaugurated the Unterhaching power plant built by Siemens AG. This Kalina Cycle® project is designed to produce 3.4 MW of electricity for the local municipality.

Ocean Thermal

For Ocean Thermal Energy Conversion (OTEC) – the process of using this easily-accessible, self-replenishing energy resource to generate power, desalinated water and other environmentally friendly products, the Kalina Cycle® can achieve remarkable results. In these low temperature power plant applications, the Kalina Cycle® can produce about 50% more electricity than competing technologies using pure component, low boiling temperature working fluids such as ammonia or refrigerants.

Solar Thermal

Solar trough technology is currently being demonstrated in the United States and Europe in which collectors concentrate solar radiation heating a fluid medium to about 750°F. The heated fluid flows through a heat exchanger, where the heat is transferred to a power cycle. The operating temperature is ideal for the Kalina Cycle®, resulting in increased net power generation, thereby improving project feasibility.

Energy recovery and binary geothermal power plant applications are effective at reducing greenhouse gas and other emissions, which result from fossil fuel burning for power generation. The improved efficiency that the Kalina Cycle® offers further improves the ability of the project to realize emissions reductions.