Identification of technical risks in the photovoltaic value chain and quantification of the economic impact

Abstract

In photovoltaic (PV) projects, it is important to establish a common practice for professional risk assessment, which serves to reduce the risks associated with related investments. The objective of this paper is to present a methodology on how to improve the current understanding of several key aspects of technical risk management during the PV project lifecycle, with the identification of technical risks and their economic impact. To achieve this, available statistical data of failures during a PV project have been collected with the aim to (i) suggest a guideline for the categorisation of failure and (ii) develop a methodology for the assessment of the economic impact of failures occurring during operation but which might have originated in previous phases. The risk analysis has the aim to assess the economic impact of technical risks and how this can influence various business models and the levelised cost of electricity. This paper presents the first attempt to implement cost-based failure modes and effects analysis to the PV sector and to define a methodology for the estimation of economic losses because of planning failures, system downtime and substitution/repair of components. The methodology is based on statistical analysis and can be applied to a single PV plant or to a large portfolio of PV plants in the same market segment. The quality of the analysis depends on the amount of failure data available and on the assumptions taken for the calculation of a cost priority number. The overall results can be linked to the cost of periodic and corrective maintenance and form the basis to estimate the impact of various risk and mitigation scenarios in PV business models.

Managing technical risks in PV investments: How to quantify the impact of risk mitigation measures for different PV project phases?

“…The CPN is given in €/kWp or €/kWp per year. The methodology of quantification was also introduced in Moser et al…”

“…Basically, the CPN consists of frequency and the economic impact of a failure. The main outcome of the report was then further analysed and published in Moser et al While failures arising from technical risks belonging to the first group have an impact on the overall uncertainty of the energy yield, failures with a CPN have a direct impact on the annual cost of running a PV plant. The latter are caused by economic losses due to downtime (reduction in the use factor) and component repair or substitution (Operational Expenditures, OPEX) and it is given in €/kWp or €/kWp per year.…”

Enhancing the Performance of DPFC on Dc Side Using Reboost Converter

“…In this request side, with the improvement of double correspondence, estimation &demand reaction innovation, the controllability of the mechanical and private burden is hugely upgraded [7][8]. When the framework is in a crisis task express, the system topology modification strategy, for example, load move is likewise a powerful methods for hazard control, particularly the network dynamic division innovation can rapidly and precisely search and alter explicit crisis plans So as to adapt to the referenced issue of PV incorporated power framework chance appraisal and control, the current investigations primarily center around the accompanying viewpoints: 1) a few researchers make a solid examination of network operational hazard sources and segregate hazard variables as per the key components in the PV power plant and power lattice [9][10][11]. 2) some focus on the particular issues of power-network examination covering dependability investigation, static security investigation and transient steadiness examination and set forward inventive hazard pointers to reflect and measure the segment level or framework level static and transient hazard [12].…”

Control of the STC power in PV modules' supplies for utility scale plants

“…Particularly in Spain, commercial plants supported by a guaranteed feed‐in tariff were built. Here, it is necessary to highlight that the key aspect in the development and implementation of controls of the STC power in PV projects was the financing format widely spread in the sector, the “Project Finance.” In this type of financing, the guarantee for the financial institution in case of nonpayment is the PV plant itself, and therefore, the owner/developer was required to implement mechanisms to assess and reduce technical risks in the PV projects, such as the quality control of the modules.…”