When considering geothermal project development, the complex assignment of aggregating and quantifying influencing factors their interactions is an inevitable task that enables comprehensive assessment energy utilization from many different aspects. The main purpose scientific work a revised set criteria for evaluation focusing on Enhanced Geothermal Systems (EGS) geological settings, technology, economic financial aspects societal environmental parameters. newly presented conceived as...

Deep geothermal energy presents large untapped renewable potential could significantly contribute to global needs. However, developing projects involves uncertainties regarding adequate brine extraction and huge costs related preparation phases consequently drilling stimulation activities. Therefore, evaluating utilization alternatives of such is a complex decision-making problem effectively addressed using multi-criteria (MCDM) methods. This study introduces the MCDM method utilizing...

Local electricity trading is a concept that allows active between consumers, producers and/or prosumers located in local low voltage distribution grid. The should provide added value to the participants and accelerate democratization, decarbonization decentralization of power sector. effects on levels grids are just early stage research, together with possible means control, market design, market-clearing approaches integration within markets. aim this work contribute research by examining...

This paper analyzes a price-taker hydro generating company which participates simultaneously in day-ahead energy and ancillary services markets. An approach for deriving marginal cost curves is proposed, taking into consideration price uncertainty opportunity of water, can later be used to determine hourly bid curves. The proposed combines an conditional value-at-risk, probability occurrence automatic generation control states water linear constraint form easy implement optimization...

Current trends of decentralization, digitalization, decarbonization and democratization in the power sector enable new business models featuring active participation distributed energy resources storage systems. Moreover, individual small market participants acting as peers want to trade electricity within local communities. Peer-to-peer decentralized trading microgrids using ledger technology could be a solution for establishing markets accelerating integration resources. In this paper,...

This paper presents the main features of a multiple-criteria decision-making tool for economic and environmental assessment enhanced geothermal systems projects. The presented holistic approach takes into account important influencing factors such as technical specifications, geological characteristics, spatial data, energy heat prices, social impact. uses weighted decision matrix evaluating different alternatives based on set criterions which are defined in this paper. paper, defines...

This paper proposes a coexistence model for two independent companies both operating hydropower plants in the same river flow, based on case study of Cetina basin Croatia. Companies are participants day-ahead electricity market. The incumbent company owns existing and holds concessions water. new decides to build pump storage plant that uses one reservoirs as its lower reservoir. Meeting reservoir water balance is affected by decisions which independently seeking maximal profit. Methods use...

Ongoing decentralization of electricity generation enables households to invest in small renewable energy sourced and benefit from those investments by selling their flexibility demand generation. Individual including end consumers, producers prosumers (acting as peers) could trade within community microgrids. The idea decentralized trading a microgrid can be achieved with distributed ledger technology for peer-to-peer transactions. In this paper, issue is examined some ideas behind the...

There are numerous oil fields that approaching the end of their lifetime and have great geothermal potential considering temperature water cut. On other hand, industry is facing challenges due to increasingly stringent environmental regulations. An example this case France where extraction will be forbidden starting from year 2035. Therefore, some companies switching business investing in projects conducted on existing wells. The proposed methodology developed conversions present evaluation...

One of the major tools for implementation low carbon strategy goals is increasing penetration renewable sources, which are mostly intermittent in nature, into power system that also increases needs additional storage and flexibility capacity system. Among other possible solutions, one very most promising tool significant electrification transport sector. A slightly modified already verified model used Croatian low-carbon was here. The PLEXOS software to by simulating different scenarios. Two...

This paper analyses potential geothermal sites in North-East Croatia which is part of the Pannonian Basin System where a substantial was discovered during hydrocarbon exploration using Multi-Criteria Decision-Making Tool specially developed for purposes Horizon 2020 project: Multidisciplinary and multi-context demonstration EGS Exploitation Techniques potentials (H2020 MEET). Most these use available energy commercial purposes, mainly balneology more recently agriculture electricity...

This study analyses the short-run hydro generation scheduling for wind power differences from contracted schedule. The approach construction of joint marginal cost curve hydro-wind coordinated is proposed and applied on real example. (SRMC) important its participation in energy markets economic feasibility assessment such coordination. credibly describes costs which this coordination bears “real life”. based duality framework a convex programming as novelty combines...

This study analyzes the short-run hydro generation scheduling for wind power differences from contracted schedule. The approach construction of joint marginal cost curve hydro-wind coordinated is proposed and applied on real example. important its participation in energy markets economic feasibility assessment such coordination. credibly describes costs which this coordination bears “real life”. based duality framework a convex programming as novelty combines shadow price risk mitigation,...

Peer-to-peer electricity trading between consumers, producers and/or prosumers located in a low voltage distribution grid is concept that goes well with the trends of democratization, decarbonization and decentralization power sector. However, impacts peer-to-peer on levels grids are still early stage research. The aim this work to investigate effects near real-time levels. It analyzed if contribution sustention voltages under limits can be achieved without security-constrained dispatch...

Local energy trading is a concept that allows between distribution grid participants such as consumers, producers, and prosumers on local level in transparent competitive way. This can provide better demand-supply balancing, decrease voltage deviations, improve social welfare. However, economic feasibility of implementation greatly depends regulatory framework, certain provisions either lead to barriers costs undermine the potential benefits trading, or support projects. In this paper, under...

Wind power varies over time, mainly under the influence of meteorological fluctuations. The variations occur on all time scales. Understanding these and their predictability is key importance for integration optimal utilization wind in system. There are two major attributes variable generation that notably impact participation exchanges: Variability (the output changes resulting fluctuations plant scales) Uncertainty magnitude timing less predictable, has low levels predictability). Because...

In the context of sustainable development and aspirations for low carbon future, renewable energy sources are imposed as foundation power systems future. Due to unpredictable nature these adaptation traditional system new conditions is necessary. This change particularly needed in form generation which able balance supply demand realtime due intrinsic variability a storage. paper, through scenario analysis optimization, considers future prospects sourced Croatian system. It analyses...

Utilization of microgrids is an integral part the efforts for increased resiliency and deep integration renewable energy sources in power systems, as they allow maximization use locally available resources operational harmonization internally interconnected parts systems - either grid-connected or island mode. Development laboratory setups studying different aspects has been recognized a valuable tool preparation real-life implementation. In this paper we present developed AC/DC setup that...

The business models for peer-to-peer electricity trading are emerging but number of challenges still must be solved to allow large-scale deployment. aim this paper is investigate effects producer's offering prices on power flows within a distribution grid where simulated. simulated as near real-time auction-based local market and tested the IEEE European low voltage test feeder. That way, peak load requirements energy balance studied. results point out that can enhance participation...

The paper presents an analysis of a one-semester technical course "Electrical facilities". goal the is to show how system real-time knowledge testing at undergraduate level, using radio-frequency clicker and conventional assessment methods, was implemented on single University Zagreb. Using statistical analysis, students are clustered in groups influence clickers student population. It shown that have faborable impact work accordance with each student's abilities, as confirmed assesment methods.

The crucial design elements of a good capacity remuneration mechanism are market orientation, insurance long-term power system adequacy, and optimal cross-border generation utilization. Having in mind these elements, this research aims to propose financially fair pricing that will guarantee enough new not present state aid. proposed is an easy-to-implement linear program problem presented its primal dual form. shadow prices the variables used calculate firm which needed for adequacy under...