Analysis of Electricity Data Produced by a Grid-Connected Household-Sized Small Power Plant (HMKE) and Consumed by the Household

EasyChair Preprint no. 11311

Abstract

In this paper, the amounts of electricity produced in the period of 2020-2022 by a grid-connected household-sized small power plant (HMKE) installed on the roof of a family house in Eger are analysed and compared to the amounts consumed by the family in the same period. The analysis is divided into years and months. By analysing the average of the 3-year data series, it can be stated that the HMKE generated annually ~1100 kWh of electricity surplus, but this was not evenly distributed, overproduction from April to October, while underproduction between the months of November and March was typical. Based on the online calculator of Photovoltaic Geographical Information System, the expected annual electricity production of the small power plant was also calculated and it was compared to the average of the examined 3 years. It was found that the HMKE produced only 1.9% less than what was calculated by the PVGIS, but the distribution of the deviation between theoretical and actual monthly data was not uniform. Based on this, one can conclude that the annual production of the photovoltaic system can cover the expected electricity demand of the household, but to optimize the consumption, it will be advisable to install a smart system.

Keyphrases: hálózatra visszatápláló üzem, háztartási méretű kiserőmű, napelemes rendszer, termelt és fogyasztott villamosenergia-mennyiség, összehasonlítás

@Booklet{EasyChair:11311,
  author = {Judit Somogyiné Molnár and Attila Kovács},
  title = {Analysis of Electricity Data Produced by a Grid-Connected Household-Sized Small Power Plant (HMKE) and Consumed by the Household},
  howpublished = {EasyChair Preprint no. 11311},

  year = {EasyChair, 2023}}