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CCS technology could capture up to 90% of carbon dioxide from emissions and This paper presents the levelised cost of electricity of CCGT with CCS and. Prior to delivery to the CCGT power block, the fuel gas is heated to 78°C as an efficiency measure, using waste heat in the form of low pressure steam generated. Tom will be providing an overview of Combined Cycle Gas Turbine (CCGT) is part of the team engaged in developing the Peterhead CCS Project – one of two .

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The rest of the fuel is sent to the gas turbine. Process air for the reforming process is extracted from the gas turbine compressor.

Interfaces with the CCGT | Global CCS Institute

The estimate of fuel price from to is on the basis of DECC [19] fossil fuel price assumptions report. CCS will play a vital role in efforts to limit the global warming. Typically when firing hydrogen in a gas turbine, the turbine nozzle area must be increased from that of the reference plant, to accommodate the increased volumetric flowrate of fuel which is required due to the lower heat content relative to natural gas and to maintain the design pressure ratios of the machine.

This limitation of renewable could be solved by coal and gas-fired power station fitted with carbon capture storage CCS technology. If the LCOE of CCGT with CCS could be reduced to an appropriate price level, the UK government could use CCS technology to maintain secure and low carbon electricity as more intermittent renewables and inflexible nuclear come onto the grid, and does not worry about the suddenly increased household electricity bills.

LCOE of Wind and solar PV technologies is decreasing due to the reduction of construction cost and increment of average load factor. The required concentration of N 2 is achieved by varying the amount of process air sent to the ATR.

The LCOE of pre-combustion technology is the highest amongand respectively. Currently, there are 8 operational commercial-scale CCS plants in U. According to the International Energy Agency, more than CCS projects vcs be set up and be running by worldwide [6]. To achieve the greenhouse gases reduction target, CCS technology will play as an important role to a low-carbon future, which allows continued use of fossil fuels whilst limiting global temperature rises.


Scientific Research An Academic Publisher. There is a gap between the LCOE and the financial costs in real electricity market due to some specific uncertainties such as fuel and cct price. In addition, cooling water is derived from a common cooling water system. A de-rating of the standard GT inlet temperature that has been modelled may be required in practice for H 2 firing due to the greater heat transfer to the blades, and this would result in a slight reduction in efficiency of the overall plant; however, the development of components for high hydrogen combustion may minimise such an effect.

Cite this paper Luan, T. Discounted rate, also known as the hurdle rate, is the minimum Internal Rate of Return IRR that a company expects to earn when investing in a project.

The boiler feed water supplied to the heat recovery system is obtained from the CCGT a larger boiler feed water system has been allowed for. The LCOE equation is an evaluation of the life-cycle energy cost and life-cycle energy production [11]. The LCOE of project starting from to International Energy Agency, Par-is. Arup and Leigh [Fisher [16] [17] provide cost and technical assumptions for the renewable technologies and non-renewable technologies individually; NERA Economic Consulting [18] provide a report on hurdle rates for projects starting development from First, carbon dioxide will be separated and captured either by before the combustion process by pre-combustion capture, or after the combustion process by post-combustion ccgt or oxy-combustion capture [4].

Principle The LCOE is an important measurement for comparing the unit costs of different electricity technologies to guide discussion and decision-making [10].

6.3 Interfaces with the CCGT

However, renewable energy is difficult to meet the increasing energy demand and keep lights on. Although wind and solar PV technology are become more and more mature and cheaper, CCS as a developing technology has the potential to be one of the most cost-ef- fective technologies [8].

To evaluate the total cost of electricity, the streams of costs are converted to a net present value using the time value of money by discounted cash flow model. The hydrogen fuel gas for the gas turbine is supplied at a molar ratio of about The paper is not in the journal.

The LCOE represents the present value of the unit cost of electricity over the lifetime of the powerstation. In the UK electricity system, gas and coal- fired power station with CCS is an unavoidable option in order to meet the increasing energy demand and keep lights on whilst minimizing the environmental damage [7]. On the contrary, post.

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Skip to main content. IP steam at a pressure of about 49barg is produced by heat recovery from the synthesis gas produced in the ATR. And renewable energy would make a huge contribution to the low-carbon economy. This steam export has resulted in a larger STG and condenser than would otherwise be required. And the rest of greenhouse gases need to be paid the carbon cost, so the increasing carbon price leads to the increase of LCOE. But, the CCS technology has much potential to reduce its LCOE, such as investing in large CO 2 storage clusters with shared pipelines to decrease the operation cost; re-use of existing oil and gas infrastructure to reduce the construction cost; developing a subsidiary supply business to increase the revenue of power plant.

It denotes the level of risk to invest a project, riskier projects generally have higher hurdle rate [13].

In general, every reasonable effort has been made to maximise use of the waste heat which is generated by the process and to thereby optimise the net efficiency of the overall plant.

Moreover, oxyfuel combustion technology has the trend to be the cheapest CCS technology. According to Figure 1. The overall pressure ratio of the GT is therefore similar to that of the reference plant without need for nozzle modifications. The total costs of power station include:. Conflicts of Interest The authors declare no conflicts of interest. However, since the configuration of Scenario 5 is such that the GT compressor is sized to also supply compressed air for use in the reforming process, the increase in volumetric flow of fuel into the GT is offset by the equal amount of additional air extracted for the process.

The waste heat IP intermediate pressure steam generator is a major element of the reforming process heat recovery system. The LCOE is an important measurement for comparing the unit costs of different electricity technologies to guide discussion and decision-making [10]. The acceptability of low carbon technologies is decided by the market principle the lowest generation cost will win the biggest market share [2].