Power and Heat Generation
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NEM exhaust gas bypass systems provide power plants with more flexible operation
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NEM Heat Recovery Steam Generators (HRSGs) for power and cogeneration are suited for any purpose, whether fast start power plants or cogeneration facilties.
Whether for gas turbine combined cycle power plants (CCPP) or combined heat and power (CHP) plants, NEM offers competitive solutions to support new flexible and efficient power generation.
The global power markets are changing quicker than ever before. The complexity of the energy system demands that new power plants solutions become more flexible, while also requiring a high level of efficiency.
The need for more flexibility has everything to do with an increasing amount of renewable energy connected to the grid. Power plants need to become more flexible, ramping up faster and dealing with a challenging operating regime in order to be able to cope with fluctuating renewables.
NEM offers a unique variety of product designs taking into account these market requirements, preparing customers for different plant operation scenarios in the future.
Gas turbine power plants are becoming more efficient in converting the chemical energy in the fuel, often natural gas, into electrical energy supplied to the grid. The steam cycle in a gas turbine based power plant is increasingly important as the waste energy of a gas turbine needs to be converted into electricity in the most efficient possible way.
NEM thermal design capabilities are second to none and allows for optimal heat transfer in a combined cycle power plant, leading to the highest efficiencies.
Oil & Gas
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Existing platforms – Conversion of open cycle gas turbines to combined cycle with our Ultra-Light approach
Ultra-Light Bottoming Cycle
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Compressor stations – remote gas turbines can be installed with efficient WHRUs for heating up fluids, gasses, or run an ORC-cycle.
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Refineries – Cogeneration applications require customized heat solutions using our modular heat recovery products
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FPSOs – Efficient heat recovery for steam or heat production with our modular heat recovery products.
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Offshore – NEM heat recovery products can be applied for any offshore GT application
The oil & gas markets are undergoing major changes.
In order the reduce the amount of CO2 emitted per barrel of oil or gas produced, companies are taking actions to increase efficiency and reduce their carbon emissions.
NEM offers a unique set of products, whether for onshore or offshore heat recovery. For instnace, onshore NEM is providing heat recovery solutions for gas turbines in mechanical drive applications. Often these gas turbines run in open cycle, but recovering waste heat can drastically improve efficiency of the overall plant. The waste heat can be used to heat up any other type of gas or liquid. For offshore applications NEM has a unique and patented ‘Ultra-Light’ design.
Here the installation is designed as such to reduce weight to the optimal extend. This results in the lowest total installed costs for our customers and allows customers in offshore areas to increase their gas turbine plant efficiency immensely. This so called Ultra-Light design can be supplied for new gas turbine facilities for FPSO, FLNG or fixed rigs as well as to convert an existing offshore open cycle gas turbine to a combined cycle.
Industries
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NEM WHRU can efficienty recover energy from waste heat sources
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ORC turbine and generator producing power from the recovered heat
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Waste Heat source. In this example a gas turbine
Energy intense industries often generate their own energy.
Pulp and paper is a good example of such an industry. The production process requires heat, and heat is often supplied as steam in the plant. Various pulp and paper companies combine the production of electricity with the production of heat for their production process.
Especially the combination of power and heat production can be done very efficiently using a co-generation process. Here a gas turbine and heat recovery steam generator are coupled to generate both electricity through the gas turbine and generator, while producing heat using the gas turbine waste heat as energy source. In case more steam is needed for the process the heat recovery steam generator can also be equipment with a supplementary firing system to fit to the plant’s requirements. Also in other industries heat and heat recovery play an important role.
NEM offers water/steam based heat recovery solutions as well as other types of heat recovery cycles such as for an Organic Rankine Cycle (ORC). Here waste heat is recovered using a organic heat transfer medium. The organic heat transfer medium is then routed to an ORC turbine rather than a steam turbine, for the generation of electricity.
Renewables
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Hydrogen production from renewables electricity
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Hydrogen storage
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Hydrogen distribution to power plant
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NEM Heat Recovery Steam Generator ready for hydrogen operations.
The energy transition is shaping a new energy system.
Hydrogen is playing an increasingly important role, also in power generation. New natural gas fired power generation is being prepared to make the shift to hydrogen, which is already happening today.
That means that new products need to be ready for the use of hydrogen, and in NEM, we are ready. All of the NEM products can be prepared for (future) hydrogen operations. With the use of hydrogen instead of natural gas for power generation, there are no assiciated CO2 emissions, or lower in case of a hydrogen natural gas mixture. However, there are some design considerations when it comes to dealing with it as fuel. At NEM, we know these challenges and we can support our customers becoming ready for that future.
Heat is one of the most important elements in the energy landscape. Most of the world’s energy demand comes in the form of heat. Many industries need heat in their production processes, from cement plants to petro-chemical facilities. All of those industries rely on heat supplies for their end product. At NEM, we are developping new energy solutions in the area of ‘power-to-heat‘, which literally means to be using electricity directly to generate heat. NEM aims to be a key supplier of electric heaters for higher temperatures in the higher megawatt range.
Energy Storage
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Wind energy needs to be stored in case of grid overcapacity and/or to avoid curtailment. The energy can be stored as heat.
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NEM heat transfer products are used for efficient heat transfer in thermal energy storage systems
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Solar power provides peak output during the mid-day which can be stored in energy storage systems for use at a later stage. The energy can be stored as heat.
Heat transfer is needed througout the energy value chain, also in energy storage applications.
For instance, in Compressed Air Energy Storage, known as CAES, where electrical energy can be storage for longer periods of time and on gigawatt-scale. CAES improves utilization of renewable energy resources by absorbing GW-hours of energy that would otherwise be curtailed and provides grid balancing and reserve services.
The CAES solutions works with a so called expander cycle where the exhaust heat is going through a waste heat recovery unit, one of NEM’s key products that can be used for waste heat recovery in various applications.
Thermal energy storage applications are also becoming increasingly popular. Here the energy is stored in the form of heat. In thermal energy storage heat transfer is key, as the electrical energy has to be converted into thermal energy and, often, also vice-versa.
Thermal energy storage applications has as advantage that these can be used in cases when heat is the primary need of the customer, either as back-up or as intermediate to balance the demand and supply of heat in the user’s process. NEM’s heat recovery products can be found in various thermal energy storage applications.