Feasibility of a vertical photovoltaic system on a high-rise building in Malaysia: economic evaluation

Better systems can be produced from various utility outputs that are integrated to make choices. The emergence of polygeneration after triggers and cogeneration can be used as sustainable solutions, making it possible to utilize resources optimally, efficiently and environmentally friendly. Polygeneration can be conceptualized with several possibilities because, theoretically, the working system has been well received as contained in some literature. Various scientific works have reported that the input and output vary greatly. The results of experimental analyses and prototypes developed have also been widely investigated and reported. Optimization tools that are based on the function of each objective are also used as a step to develop polygeneration effectively and efficiently. Polygeneration assessment has multidimensional criteria and their definitions can be applied based on cases with specific objectives. The main objective of this article is to comprehensively review the various literature available to investigate the status of polygeneration for renewable and sustainable energy solutions in the future. Various possible logical and predictable future works on polygeneration are also discussed at the end of this article.

Section: Solar and Coal For Polygenerationmentioning

confidence: 99%

An Overview of Polygeneration as a Sustainable Energy Solution in the Future

Hani

Mahidin

Erdiwansyah

et al. 2020

“…Kalogirou [22] studied a water-based PV/T system consisting of four monocrystalline PV panels in Cyprus and achieved an increase of average annual electrical efficiency from 2.8% to 58 7.7% with the payback periods of 4.6 years. Ghazali et al, [23] show that the photovoltaic system on a vertical façade of a high-rise building can be implemented with a careful design approach in Malaysia's climatic conditions. It was found that the payback period for the vertical photovoltaic system is about 12 years while the horizontal system is 6 years.…”

Section: Cooling Techniquesmentioning

confidence: 99%

Feasibility of Cooling a Photovoltaic Fresnel System by Water Spraying

Shenouda

Abd-Elhady

Kandil

2020

The Fresnel system can achieve high electrical energy yield compared to the traditional photovoltaic (PV) panel techniques due to the concentration of solar energy. However, this huge energy might cause overheating of the PV panel. The objective of this research is to mathematically model a linear Fresnel system that is cooled by either spraying the PV panel by tap water or chilled water, in order to determine the maximum possible concentration ratio, which is called the critical concentration ratio. Then, the model is further used to study the effect of cooling on the PV panel in real life operating conditions in two cities; the first one is a hot city which is Cairo, Egypt, and the other one is a cold city which is Stuttgart, Germany. The objective is to find out the Critical concentration ratio (Cr) at which the maximum energy output from the system can occur as a function of the operating conditions. The results of this study show that cooling of the PV panels using chilled water system is not feasible. Therefore, in order to improve the feasibility, a low energy cooling system should be adopted. Such system may include spraying tap water on the PV panels, recollecting the water and cooling it naturally underground and finally spraying it again on the panels. The maximum output energy has increased by approximately 75%, compared to the nocooling case, due to water spraying, which indicates the feasibility of water spraying in Fresnel systems.

“…To encourage the growth of solar energy sector in domestic, commercial, and even industrial consumers, the first introduced policy was Feed in Tariff (FiT) scheme in 2011 where grid-connected solar photovoltaic (PV) generators will be paid in cash for the amount of extra electricity they have generated [4]. According to the study published by Solar Energy Research Institute (SERI) from Universiti Kebangsaan Malaysia, the payback period for vertical photovoltaic facade system on a high rise building in Malaysia is about 12 years while the horizontal façade system is about 6 years for Tariff C1 (Medium Voltage General Commercial Tariff) under FiT scheme [5]. Nevertheless, the application of FiT scheme was closed for registration in the year 2016.…”

Section: Introductionmentioning

confidence: 99%

“…To solve the problem above, Net Energy Metering (NEM) scheme was introduced in Nov 2016 where energy produced from solar PV system installed will be consumed first, and any excess to be exported and sold to the Distribution Licensees (DLs) i.e. TNB /SESB at the prevailing Displaced Cost prescribed by the Energy Commission [5]. Sadly, as of October 2018, the total amount of NEM quota taken up is disappointingly low at only 17 MW (megawatt) or 3 %, out of the 500 MW [6].…”

Section: Introductionmentioning

confidence: 99%

The Potential of Solar Energy for Domestic and Commercial Buildings in Malaysia

Saad

Wei

2020

The rise in electricity consumption can affect global warming and climate change. Exploitation of solar energy is amongst the most sustainable and relatively cheap solution in Malaysia. It is imperative to study the potential of its application for domestic and commercial buildings. In this paper, financial viability of grid-connected solar photovoltaic (PV) system for domestic and commercial buildings is analysed using payback period and return on investment (ROI). The payback period and ROI are determined and compared based on Feed-in Tariff (FiT) and revised Net Energy Metering (NEM) schemes. Various scenarios and case studies were conducted using factors such as availability, installation, maintenance, and depreciation. It was found that domestic consumers i.e. homes with monthly electricity bills of RM2500 and RM5000 had the shortest payback period at 8.7 years for both schemes. For the commercial buildings with average bill of RM5003.43 the shortest payback period was 8.2 years for both schemes. The ROI of solar PV system installed for this commercial building were 155.03 % (FiT) and 203.65 % (revised NEM). Thus, solar PV system under FiT and revised NEM schemes would be financially viable for commercial buildings with monthly electricity bills of RM2500 and RM5000.