Techno-economic analyses

TECHNO-ECONOMIC ANALYSIS OF THE PYROLYSIS OF POLY(METHYL METHACRYLATE)... 

The basic principles for the design and pre-feasibility analysis of hydrogen-based autonomous power systems are also given. The main outcome of the techno-economic analysis is the identification of technical and non-technical barriers and respective potential benefits for the implementation of hydrogen-based autonomous power systems in the short term and medium term as well. The analysis performed in this section of the book is based on real technology and market parameters acquired during the operation of these autonomous power systems rather than on theoretical assumptions. 

Techno-economic Analysis of Hydrogen Technologies Integration in Existing Conventional Autonomous Power Systems - Case Studies... 

To perform simulation and optimisation of a power system using the HOMER tool, information and data on natural resources (such as wind and solar irradiance data), electric and thermal loads, economic constraints, current and future equipment costs, user behaviour and control strategies are required. The main purpose of the techno-economic analysis presented in this chapter was to investigate the impact of diesel generators and batteries replacement with hydrogen technologies, including fuel cells both in technical and financial terms. 

A basic scheme of the configuration of the existing PV-diesel autonomous power system is presented in Figure 5.2. The main power components of this system are PV panels, diesel generating set, batteries and a converter. To simulate this system and perform a techno-economic analysis individual costs (capital cost, replacement cost, operation and maintenance cost) have to be identified for each component. The identification of these costs was mainly based on the RETScreen database developed in Canada (Natural Resources Canada, 1998). 

The operational parameters calculated in the context of the simulation process and the results of techno-economic analysis of the hybrid system were used in the comparison of the PV-diesel and the envisaged PV-hydrogen power system in order to evaluate its technical feasibility and financial viability of the proposed hydrogen-based autonomous power system. 

Kythnos PV-hydrogen Power System Techno-economic Analysis To asses the economic viability of the proposed PV-hydrogen power system two different scenarios for equipment costs were considered. In the first one, current capital costs for hydrogen energy equipment were taken into account, while in the second one, long-term (2020) forecasts for equipment costs were introduced. 

It should be noted that the techno-economic analysis performed with HOMER software showed that the wind turbines installed on this island have been overdimensioned and this is the reason for the relatively high annualised cost attributed to wind energy for this system. On the other hand, this is a feature of Fair Isle s power system that most probably makes the introduction of hydrogen energy technologies economically viable. 

Fair Isle Wind-hydrogen Power System Techno-economic Analysis As for all case studies presented in this chapter the scenarios for current and longterm costs for hydrogen energy equipment, presented in Table 5.5, were used in the techno-economic analysis of the optimum wind-hydrogen power system. 

The HOMER software tool was also used for the techno-economic analysis of both the existing diesel-based autonomous power system and the envisaged wind-hydrogen system of Rauhelleren. The detailed results and respective discussion of power system analysis performed are given in the following sections. 

Finally, the techno-economic analysis of specific case studies of already existing autonomous power systems revealed that such systems can be a significant short- to medium-term market niche. In the presented case studies it was shown that specific hydrogen-based autonomous power systems can be financially competitive to respective power systems using conventional power-generation equipment, even in the short term. Moreover, the introduction of hydrogen in autonomous power systems has significant environmental benefits and it can contribute to the security of power supply of remote communities. 

Techno-economic Analysis of. the Integration of Hydrogen in Autonomous Power Systems f... 

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