Hydrogen Power Plants
Hydrogen plants for both, existing and new units
Lowering CO₂ by using hydrogen for power generation
Siemens Energy is combining its unique portfolio of gas and steam turbines, electrolyzers, and heat pumps, and turning it into a unique optimized power plant solution with one operating system.
Benefits of integrating hydrogen into your gas turbine operations
Storing energy as well as generating electricity and heat
Increasing overall energy efficiency of hydrogen production by utilising waste heat
Producing electricity with lower emissions per kWh
Integration of renewable energy into reliable power and heat supply
100% future proof power plant
Supporting our customers on their way to achieve their decarbonization goals
Would you like to learn more?
The market and basic business case for H₂
Watch the video to learn more about a typical day in the life of a hydrogen combined cycle power plant, tapping into current and future trends of the electricity market.
Getting your plant ready for hydrogen co-firing
What steps are required for introducing hydrogen as a fuel in a natural gas power plant?
Watch the video to learn how to get your plant ready for hydrogen co-firing.
Our solution for hydrogen power plants
Our hydrogen power plants include use cases for newly build as well as existing installations. Our goal is clear: we support our customers with their hydrogen ambitions, whether for existing or new units, and we can help with creating a roadmap to a full hydrogen power plant.
The hydrogen power plant can be customized to your project-specific needs. The concepts can also be combined with other gas turbine models, depending on the required capacity.
- New build hydrogen power plants
- Upgrade for existing plants
Power Only Package
Power only package
The hydrogen power plant includes an H2-fired gas turbine (e.g. SGT5-9000HL, SGT-800, or SGT-400), electrolyzers with H2 compression and storage, and our Omnivise fleet management system to integrate all components including renewable energy sources feeding electricity into the electrolyzer.
Size L
e.g. with a SGT5-9000HL or SGT6-9000HL gas turbine
Size M
e.g. with a SGT-800 gas turbine
Size S
e.g. with a SGT-400 gas turbine
Baseline operations ~ 880 MWe @ 64% efficiency
[Combined Cycle]
| | Hydrogen Operational Case (Methane + 30% vol H₂) | Hydrogen Operational Case (Methane + 50% vol H₂) | Hydrogen Operational Case (100% H₂, planned development)* |
|---|---|---|---|---|
CO₂ Saving, g/kWh | - | -36 g/kWh | -72 g/kWh | -311 g/kWh |
CO₂ Output, g/kWh | 311 g/kWh | 275 g/kWh | 239 g/kWh | 0 g/kWh |
CO₂ Saving %, [kWh base] | - | -11% | -23% | -100% |
H₂ flow, tons/hr | - | ca 4.7 t/hr | ca. 9.5 t/hr | ca 41.3 t/hr |
Methane flow, tons/hr | ca 99 t/hr | ca 87.7 t/hr | ca. 76.1 t/hr | 0 t/hr |
*The results presented are only estimates for general information purposes and do not intend to provide legal, tax or accounting advice. The information and tools provided in this website are not designed to replace a professional project specific assessment. For an exact calculation the boundary conditions for the specific site should be considered. Expected capabilities or benefits may not apply or be realized in all cases. Information used to calculate results is subject to change without notice. Nothing on this site, including the results, shall be deemed or construed to be a warranty or guarantee of the information, product(s) or component(s) described herein.
Technical data / size L, SCC6-9000HL 1S (60 Hz)
Baseline operations ~ 655 MWe @ 64% efficiency
[Combined Cycle]
|
| Hydrogen Operational Case (Methane + 30% vol H₂) | Hydrogen Operational Case (Methane + 50% vol H₂) | Hydrogen Operational Case (100% vol H₂, planned development)* |
|---|---|---|---|---|
CO₂ Saving, g/kWh | - | -36 g/kWh | -72 g/kWh | -311 g/kWh |
CO₂ Output, g/kWh | 311 g/kWh | 275 g/kWh | 239 g/kWh | 0 g/kWh |
CO₂ Saving %, [kWh base] | - | -11% | -23% | -100% |
H₂ flow, tons/hr | - | ca 3.5 t/hr | ca. 7.1 t/hr | ca 30.7 t/hr |
Methane flow, tons/hr | ca 73.7 t/hr | ca 65.3 t/hr | ca. 56.7 t/hr | 0 t/hr |
*The results presented are only estimates for general information purposes and do not intend to provide legal, tax or accounting advice. The information and tools provided in this website are not designed to replace a professional project specific assessment. For an exact calculation the boundary conditions for the specific site should be considered. Expected capabilities or benefits may not apply or be realized in all cases. Information used to calculate results is subject to change without notice. Nothing on this site, including the results, shall be deemed or construed to be a warranty or guarantee of the information, product(s) or component(s) described herein.
Technical data / size M, SCC-800 2x1 (50/60 Hz)
Baseline operations ~ 182 MWe @ 60.6 % efficiency
[Combined Cycle]
|
| Hydrogen Operational Case (Methane + 30% vol H₂) | Hydrogen Operational Case (Methane + 75% vol H₂) | Hydrogen Operational Case (100% vol H₂, planned development)* |
|---|---|---|---|---|
CO₂ Saving, g/kWh | - | -37 g/kWh | -155 g/kWh | -328 g/kWh |
CO₂ Output, g/kWh | 328 g/kWh | 291 g/kWh | 173 g/kWh | 0 g/kWh |
CO₂ Saving %, [kWh base] | - | -11% | -47% | -100% |
H₂ flow, tons/hr | - | ca 1 t/hr | ca. 4.3 t/hr | ca 9 t/hr |
Methane flow, tons/hr | ca 21.6 t/hr | ca 19.2 t/hr | ca. 11.4 t/hr | 0 t/hr |
*The results presented are only estimates for general information purposes and do not intend to provide legal, tax or accounting advice. The information and tools provided in this website are not designed to replace a professional project specific assessment. For an exact calculation the boundary conditions for the specific site should be considered. Expected capabilities or benefits may not apply or be realized in all cases. Information used to calculate results is subject to change without notice. Nothing on this site, including the results, shall be deemed or construed to be a warranty or guarantee of the information, product(s) or component(s) described herein.
Hydrogen Upgrade for existing gas power plants
As an OEM for key components, Siemens Energy has the experience, technical domain expertise and standardized approach for co-firing and recommends a collaborative approach to exploring the current capabilities of a facility and establishing a path forward to accomplish optimal hydrogen co-firing milestones.
Siemens Energy recommends a plant-specific feasibility study to guide sites towards understanding current capabilities, realistic target setting, hydrogen design package development and establishing a milestone execution plan. The resulting plan will leverage existing technologies and infrastructure to the extent possible to develop and design a package specific to the facility and aligned with the organization’s decarbonization goals.
From 0 to 100% hydrogen operation
When existing gas turbine plants are made ready for hydrogen co-firing, the facility can be extended to produce and store its own hydrogen using Siemens Energy Silyzers.
The below example shows an operational SCC-4000F power plant incrementally moving from 100% methane operation to 100% hydrogen using Silyzer 300 electrolyzers with storage as shown in the images above.
By transforming the conventional power plant into a hydrogen power plant, the facility is able to leverage cheap renewable energy from the grid and turning that into hydrogen for use when the gas turbine facility is being called upon. This feature brings immediate CO2 emissions reduction, it saves money on CO2 taxation and provides an energy storage capability with potential gains from storage credits.
Technical data / size L, example SCC5-4000F 1S
Baseline operation ~ 445 MWe @ 59.4% efficiency
[Combined Cycle]
| Baseline operation (pure methane) | Hydrogen Operational Case (Methane + 15%vol H₂) | Hydrogen Operational Case (Methane + 30%vol H₂; development ongoing) | Hydrogen Operational Case (100% H₂; planned development) |
|---|---|---|---|---|
CO₂ Saving, g/kWh | - | -17 g/kWh | -37 g/kWh | -335 g/kWh |
CO₂ Output, g/kWh | 335 g/kWh | 318 g/kWh | 298 g/kWh | 0 g/kWh |
CO₂ Saving %, [kWh base] | - | -5% | -11% | -100% |
H₂ flow, tons/hr | - | ca. 1.1 t/hr | ca. 2.6 t/hr | ca. 22.5 t/hr |
Methane flow, tons/hr | Ca. 53.9 t/hr | ca. 51.3 t/hr | ca. 47.9 t/hr | 0 t/hr |
*The results presented are only estimates for general information purposes and do not intend to provide legal, tax or accounting advice. The information and tools provided in this website are not designed to replace a professional project specific assessment. For an exact calculation the boundary conditions for the specific site should be considered. Expected capabilities or benefits may not apply or be realized in all cases. Information used to calculate results is subject to change without notice. Nothing on this site, including the results, shall be deemed or construed to be a warranty or guarantee of the information, product(s) or component(s) described herein.
H2-ready power plant concept
An optimized H2-Ready concept can reduce future retrofit costs, while keeping front-end investments low
Hydrogen Power Plants - Service and Solutions
Serving the entire power generation value chain on your PATH2Decarbonization
Hydrogen Decarbonization Calculator
Calculate your carbon dioxide (CO₂) reduction and cost-savings potential by running your aeroderivative, industrial, and heavy-duty gas turbines fully or partially on hydrogen.
Combining power with heat generation allows for an excellent overall efficiency - watch the video to learn how:
Combining the re-electrification of hydrogen with heat generation can significantly increase the overall efficiency of the hydrogen power plant solution.
This option includes a heat pump for heat recovery and a thermal storage system as buffer.
The heat pump captures waste heat from the electrolysis process and increases its temperature to feed either directly into a district heating network, or temporarily store it in a thermal energy storage system as a buffer before feeding it into the heat network.
