Framework for the analysis of the potential of the rooftop photovoltaic system to achieve the net‐zero energy solar buildings

Abstract

New renewable energy is attracting considerable attention as a future energy source. The photovoltaic (PV) market, in particular, has grown significantly during the past decade. The use of the rooftop PV system in buildings in urban environments is being actively promoted. This research was conducted to develop a framework for the analysis of the potential of the rooftop PV system to achieve the net-zero energy solar buildings in terms of energy supply. To verify the feasibility of the proposed framework, a total of 5418 elementary school facilities located in 16 administrative divisions in South Korea were selected as case studies. This research (i) collected information on the elementary school facilities, the rooftop PV system, and the meteorological and geographical characteristics by region; (ii) conducted an energy supply analysis by applying the rooftop PV system; (iii) conducted an energy demand analysis; (iv) analyzed the energy substitution effect; (v) presented the current status of the energy supply and demand in each region using the geographical information system; (vi) analyzed the causal relationship between the energy supply and demand by region; and (vii) proposed an energy supply and demand strategy by region. This research can help elementary school facility managers or policymakers conduct an energy supply and demand analysis as well as propose an energy supply and demand strategy. It can be used as part of an educational facility improvement program. The framework proposed in this research can also be applied to any other country or sector in the global environment.

Development of the Monthly Average Daily Solar Radiation Map Using a-Cbr, Fem, and Kriging Method

“…In particular, the monthly average daily solar radiation (MADSR) data should be collected to accurately estimate the amount of electricity generation from the PV system (Ashhab 2008;Badescu 1999;Cano et al 1986;Chegaar, Chibani 2001;Coskun et al 2001;Gastli, Charabi 2010;Geraldi et al 2012;Hammer et al 2003;Hong et al 2013;Koo et al 2014b;Reddy, Ranjan 2003). However, it is too expensive to measure the actual MADSR data using the remote sensors in all the sites where the PV system would be installed.…”

An Economic and Environmental Assessment Model for Selecting the Optimal Implementation Strategy of Fuel Cell Systems—A Focus on Building Energy Policy

“…Among the various sectors that cause environmental load, the building sector consumes a considerable part of the global primary energy, and thus various efforts are being made globally to solve this issue [4][5][6][7][8][9][10][11][12][13][14]. Among the different measures to save primary energy in the building sector, new/renewable energy systems (NREs), as distributed energy supply systems, allow regional peak loads to be mitigated and building energy consumption to be reduced [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. In fact, as most of the commercially available fuel cell systems rely on fossil fuels (i.e., petroleum, natural gas, and coal) for hydrogen, they are not NREs in a strict sense.…”

The potential of net zero energy buildings (NZEBs) concept at design stage for healthcare buildings towards sustainable development

“…In this regard, innovative renewable energy system strategies have to be taken into consideration. Besides that, the utilization of renewable energy systems in buildings can be a critical need and solutions against global warming and environmental pollution [35].…”