Combined Cycles

In combined cycles, Turboden ORC units can be installed downstream of gas turbines and reciprocating engines, producing electricity by recovering waste heat. In both cases the combined cycle achieves an efficiency greater than 50%. The power of Turboden turbogenerators in this application generally ranges up to 40 MW electric per single shaft.

16

plants*

26.7

MWe total

2008

first plant delivered

*4 plants are under construction

In combined cycles, Turboden ORC units can be installed at the bottom of:

Gas turbines, with up to 40% of additional power
Reciprocating engines, with up to 15% of additional power

In both cases the combined cycle reaches an efficiency greater than 50%.

WHY ORGANIC RANKINE CYCLE TECHNOLOGY?

Efficient use of high-to-low grade and variable heat sources
Low operational costs and no water needed
Add a reliable source of power, even in remote locations
Improve power plants’ efficiency with a lower impact on Levelized Cost of Electricity (LCOE)

ORC-BASED COMBINED CYCLE

Designed upon specific site features, the ORC-based heat recovery system exploits the prime movers' exhausts to produce up to 30% ÷ 40% of additional useful power. The ORC system follows the prime movers' operation mode producing additional power (for the plant itself or for external users) without any impact on the power plant operation.

TYPICAL SOLUTIONS

COMBINED CYCLE MAIN REFERENCES

ORC size	location	customer	status	notes
0.5 MWe	Mezzana Bigli, Italy	Termoindustriale S.p.A.	In operation since 2008	Electric power production from waste heat from 1x8 MWe MAN diesel engine
0.5 MWe	Portogruaro, Italy	Cereal Docks	In operation since 2012	Electric power production from waste heat from 1x7 MWe Wärtsilä diesel engine with direct exchange
0.5 MWe	Catania, Italy	E&S Energy S.p.A.	off	Electric power production from waste heat from 2x1 MWe Jenbacher gas engines + 3x0.8 MWe Jenbacher gas engines + 1x0.6 MWe Jenbacher gas engine - Landfill gas
0.6 MWe	Kempen, Germany	Stadtwerke Kempen	In operation since 2012	Electric power production from waste heat from gas engines
0.7 MWe	Senden, Germany	AGO AG Energie+Anlagen	In operation since 2012	Electric power production from waste heat from 2x2 MWe Jenbacher gas engines and from the process
0.7 MWe	Pescara, Italy	Alma CIS / Fater (P&G Group)	In operation since 2013	Electric power production from waste heat from 1x8 MWe Wärtsilä diesel engine with direct exchange
0.7 MWe	Antwerp, Belgium	BiogasTech NV	In operation since 2019	Electric power production from waste heat 4 x 3.3 MWe Jenbacher gas engines with direct exchange
1 MWe	Rosetown, Canada	TransGas	In operation since 2011	Electric power production from waste heat from a 3.5 MW Solar Centaur 40 gas turbine in a gas compressor station
1 MWe	Chivasso, Italy	Ricciarelli S.p.A	In operation since 2012	Electric power production from waste heat from 1x17 MWe Wärtsilä diesel engine
1 MWe	Hodzhaabad, Andijan Region, Uzbekistan	Uztransgaz	Under construction	Electric power production from waste heat from 3x15 MW GE gas turbines in a gas compressor station
1.3 MWe	Espoo, Finland	HSY	In operation since 2011	Electric power production from waste heat from 4x4 MWe MWM gas engines - Landfill gas
1.8 MWe	Pisticci, Italy	Ricciarelli S.p.A.	In operation since 2010	Electric power production from waste heat from 3x8 MWe Wärtsilä diesel engines
2.3 MWe	Odayeri, Turkey	Ortadoğu Enerji	In operation since 2020	Electric power production from waste heat from 12x1.4 MWe Jenbacher gas engines - Landfill gas
4 MWe	Pisticci Scalo, Italy	Ricciarelli S.p.A.	In operation since 2012	Electric power production from waste heat from 2x17 MWe Wärtsilä diesel engines
4.6 MWe	Komurcuoda, Turkey	Ortadoğu Enerji	Under construction	Electric power production from waste heat from 20x1.4 MWe Jenbacher gas engines + 4x1.2 MWe MWM gas engines - Landfill gas
25 MWe	Dahshour, Egypt	Sacyr Fluor S.A./Egyptian Natural Gas Company (Gasco)	Under construction	Electric power production from waste heat from 5 gas turbines (4 in operation and 1 in stand-by) of 30 MWe each in a gas compress station

TURBODEN AND SIEMENS FOR HEAT RECYCLE® SOLUTION

In 2019 Turboden and Siemens launched the Heat ReCycle® solution, a gas turbine based power plant with an Organic Rankine Cycle unit as bottoming cycle. This power plant is designed specifically to reduce both CAPEX and OPEX compared to a water/steam cycle while maintaining a relatively high level of efficiency.

Global trends are creating market challenges

Enormous growth in population, resulting in increasing energy demand.
Urbanization: villages turn into major cities with the need for reliable electricity supply.
Given environmental circumstances, this has to be achieved in a way where we take the climate (change) into account.