POWER SUPPLY OF DECENTRALIZED HOUSEHOLD IN KAZAKHSTAN VIA PHOTOVOLTAIC SYSTEM

B.Sc. Mikhail Ignatenko

Master's thesis

Abstract:

The practical part of the present research was focused on the design proposal of an off-grid photovoltaic system for the power supply of a decentralized household located in the South of Kazakhstan. To make a design of such kind of technical solution, a methodology was presented. Firstly, the current situation related to solar energy in Kazakhstan was reviewed. It was found that climatic conditions, as well as the level of solar irradiation, are favorable for the implementation of the technology for the power supply of both: urban and rural areas. This fact promotes the rapid development of energy generated by photovoltaics on large-scale and small-scale levels. The proposed power supply system was designed taking into account such inputs as electrical loads, energy demand through the year, level of solar irradiation. Due to the location of the model household remotely from the electrical grid, an off-grid photovoltaic system with battery bank and diesel generator were proposed. It was found that in conditions of Kazakhstan for autonomous power supply in rural areas, hybrid photovoltaic systems are effective from both technical and economical points of view. It is confirmed by the conducted economic analysis using such investment criteria as net present value, internal rate of return, payback period, and profitability index. In addition, comparative analysis for an alternative scenario and sensitivity analysis were conducted. The scientific contribution of the work is in the proposed universal methodology for the design of such kinds of projects. The universality of the methodology lies in the fact that it is applicable not only to the local conditions of Kazakhstan but also to other countries, which can contribute to sustainable energy development.

Keywords

off-grid, hybrid system, PV system, renewable energy, solar energy, photovoltaic modules

Language used: English

Date on which the thesis was submitted / produced: 6. 8. 2021

Thesis defence

• Supervisor: doc. Ing. Vladimír Krepl, CSc.

Czech University of Life Sciences Prague

Faculty of Tropical AgriSciences

Master programme:
Agri-food Systems and Rural Development