scholarly journals A Comparative Study for Different Sizing of Solar PV System under Net Energy Metering Scheme at University Buildings

2018 ◽  
Vol 7 (3) ◽  
pp. 450-457
Author(s):  
T. M. N. T. Mansur ◽  
N. H. Baharudin ◽  
R. Ali
Keyword(s):  
Solar Energy ◽  
Net Energy ◽  
Solar Pv ◽  
Pv System ◽  
Electricity Bill ◽  
Energy Metering ◽  
Solar Pv System ◽  
University Buildings ◽  
The University ◽  
Net Energy Metering

Malaysia has moved forward by promoting the use of renewable energy such as solar PV to the public to reduce dependency on fossil fuel-based energy resources. Due to the concern on high electricity bill, Universiti Malaysia Perlis (UniMAP) is keen to install solar PV system as an initiative for energy saving program to its buildings. The objective of this paper is to technically and economically evaluate the different sizing of solar PV system for university buildings under the Net Energy Metering (NEM) scheme. The study involves gathering of solar energy resource information, daily load profile of the buildings, sizing PV array together with grid-connected inverters and the simulation of the designed system using PVsyst software. Based on the results obtained, the amount of solar energy generated and used by the load per year is between 5.10% and 20.20% from the total annual load demand. Almost all solar energy generated from the system will be self-consumed by the loads. In terms of profit gained, the university could reduce its electricity bill approximately between a quarter to one million ringgit per annum depending on the sizing capacity. Beneficially, the university could contribute to the environmental conservation by avoiding up to 2,000 tons of CO2 emission per year.

scholarly journals Technical and Economic Analysis of Net Energy Metering for Residential House

2018 ◽  
Vol 11 (2) ◽  
pp. 585 ◽  
Author(s):  
T. M. N. T. Mansur ◽  
N. H. Baharudin ◽  
R. Ali
Keyword(s):  
Research Work ◽  
Design System ◽  
Net Energy ◽  
Solar Pv ◽  
Pv System ◽  
Environmental Aspect ◽  
Energy Metering ◽  
Solar Pv System ◽  
Residential House ◽  
Net Energy Metering

Renewable Energy Act (RE Act) has been gazetted by the Malaysian Government in 2011 to encourage energy generation from renewable resources. Under Feed-in Tariff (FiT) scheme, solar PV has gained popularity due to its high FiT rates. However, the FiT scheme for solar PV has expired in 2016 and been replaced by the Net Energy Metering (NEM) scheme. The objective of this research work is to technically and economically analyze the solar PV system for a residential house under NEM scheme. The methodology involves gathering solar energy resource information and daily residential load profile, sizing PV array together with grid-connected inverter and then lastly simulation of the design system by using PVsyst software. Based on the results obtained, the amount of energy generated is higher when the capacity of solar PV system is increased. While most of the energy generated is exported to the grid, only up to 25% of load demand is supplied by the solar PV system. From economic aspect, the residential house does not need to pay the electricity bill due to the self-consumed of energy generated and profit gained from excess energy exported to the grid. From the environmental aspect, 2,434 kWh energy generated from renewable resource annually and consumed by the residential load has replaced the fossil fuel based power from grid. This value is equivalent to almost 1.7 tons of CO2 avoidance to the environment.

scholarly journals Annualized Electricity Cost of Residential Solar PV System under Malaysia’s NEM Scheme

2020 ◽  
Vol 19 (1) ◽  
pp. 50-54
Author(s):  
Abdul Hafiz Razali ◽  
Md Pauzi Abdullah ◽  
Dalila Mat Said ◽  
Mohamad Yusri Hassan
Keyword(s):  
Solar Irradiation ◽  
Net Energy ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Electricity Cost ◽  
Energy Metering ◽  
Solar Pv System ◽  
Pv Generation ◽  
Net Energy Metering

Net energy metering (NEM) is a financial scheme that allows a consumer to generate, use and sell their excess energy to the grid. The main purpose of NEM is for self-consumption to reduce demand from the grid. It will allow customer to avoid being charged with expensive electricity tariff and hence reducing their monthly electricity bill. In other words, the annualized electricity cost could be reduced. NEM is commonly offered to residential solar photovoltaic (PV) system. Different PV size will determine the amount of energy that can be generated. This paper compares the annualized electricity cost of different residential customer types (large, medium and small) for different PV size under Malaysia’s net energy metering (NEM) scheme. This paper utilizes the load profile and solar irradiation data for Malaysia. The results show that high PV size does not guarantee reduction in annualized electricity cost especially for medium customers as the excess PV generation can only be accumulated for 24 months. Large customers may have benefited the most with lower annualized cost with larger PV system, while small customers may not have benefited at all.

scholarly journals Revisiting Solar Photovoltaic Roadmap of Tropical Malaysia: Past, Present and Future

2021 ◽  
Vol 29 (3) ◽  
Author(s):  
Hedzlin Zainuddin ◽  
Hazman Raziq Salikin ◽  
Sulaiman Shaari ◽  
Mohamad Zhafran Hussin ◽  
Ardin Manja
Keyword(s):  
Solar Energy ◽  
Equatorial Region ◽  
Net Energy ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Incentive Programs ◽  
Energy Metering ◽  
The Government ◽  
Net Energy Metering ◽  
Emission Of Greenhouse Gases

Environmental issues and economic factors such as emission of Greenhouse Gases (GHGs), fossil fuel depletion and fluctuation of oil prices are also the reason behind the utilization of sunlight as a source of energy. Even though with the spread of unprecedented pandemic of COVID 19, the industry of solar photovoltaic (PV) is surviving at a very promising rate compared to the oil industry. Malaysia has a high potential to be successful at harnessing solar energy as this country is located within the equatorial region. The government of Malaysia (GoM) introduced various policies, acts and incentives programs for the purpose of increasing this country’s potential to harness solar energy. Along with the efforts, goals and aims have also been set as a benchmark to measure Malaysia’s success in utilizing sunlight as an energy source. This study reviews the roadmap programs executed by GoM to elucidate the significant roles played in the development of solar PV starting from a few pilot projects in1980s until present. The roadmap focuses on incentive programs namely Feed-in Tariff (FiT), Net Energy Metering (NEM), Self-Consumption Scheme (SELCO), Large Solar Scale (LSS), Supply Agreement with Renewable Energy (SARE) and ‘Peer-to-Peer’ (P2P), which complement all the projects and solar PV applications in Malaysia. The contributing result of this roadmap is the highlights on the continuous solar PV programs stimulated by GoM, the identification and effort to improve the less performing GoM incentive programs combined with the positive responses from communities and industries, have laid a strong platform to forecast a promising future of solar PV industry in Malaysia.

scholarly journals Feasibility Study of the Technical and Economic Performance of Grid-Connected PV System for Selected Rooftops in UTHM

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Mohamad Fakrie Mohamad Ali ◽  
◽  
Mohd Noor Abdullah ◽  
Keyword(s):  
Feasibility Study ◽  
Crystalline Silicon ◽  
Electricity Consumption ◽  
Payback Period ◽  
Net Energy ◽  
Pv System ◽  
Pv Module ◽  
Electricity Bill ◽  
Pv Modules ◽  
Energy Metering

This paper presents the feasibility study of the technical and economic performances of grid-connected photovoltaic (PV) system for selected rooftops in Universiti Tun Hussein Onn Malaysia (UTHM). The analysis of the electricity consumption and electricity bill data of UTHM campus show that the monthly electricity usage in UTHM campus is very high and expensive. The main purpose of this project is to reduce the annual electricity consumption and electricity bill of UTHM with Net Energy Metering (NEM) scheme. Therefore, the grid-connected PV system has been proposed at Dewan Sultan Ibrahim (DSI), Tunku Tun Aminah Library (TTAL), Fakulti Kejuruteraan Awam dan Alam Bina (FKAAS) and F2 buildings UTHM by using three types of PV modules which are mono-crystalline silicon (Mono-Si), poly-crystalline silicon (Poly-Si) and Thin-film. These three PV modules were modeled, simulated and calculated using Helioscope software with the capacity of 2,166.40kWp, 2,046.20kWp and 1,845kWp respectively for the total rooftop area of 190,302.9 ft². The economic analysis was conducted on the chosen three installed PV modules using RETScreen software. As a result, the Mono-Si showed the best PV module that can produce 2,332,327.40 kWh of PV energy, 4.4% of CO₂ reduction, 9.3 years of payback period considering 21 years of the contractual period and profit of RM4,932,274.58 for 11.7 years after payback period. Moreover, the proposed installation of 2,166.40kWp (Mono-SI PV module) can reduce the annual electricity bill and CO2 emission of 3.6% (RM421,561.93) and 4.4% (1,851.40 tCO₂) compared to the system without PV system.

Solar Hybrid Power System for Marine Diesel Engine

2013 ◽  
pp. 1-8
Author(s):  
Oladokun Sulaiman Olanrewaju
Keyword(s):  
Climate Change ◽  
Solar Energy ◽  
Global Climate ◽  
Solar Pv ◽  
Pv System ◽  
Power Requirement ◽  
Fuel Savings ◽  
Auxiliary Power ◽  
Solar Pv System ◽  
Economic Analyses

Like all modes of transportation that use fossil fuels, ships produce carbon dioxide emissions that significantly contribute to global climate change and ocean acidification. Additionally, ships release other pollutants that also contribute to the problem and exacerbate climate change. Considering the large volume of ships on the high seas, ship emissions pose a significant threat to human health. The ocean is exposed to vast amounts of sunrays and has a great potential to be explored by the maritime sector and green power industry. Solar energy hybrid assisted power to support auxiliary power for the instruments on board the vessel is explored in a UMT vessel. The vessel that is used in this case study is Discovery XI, which is a 16.50 meter diving boat owned by University Malaysia Terengganu. The study explores the feasibility of using solar energy as a supporting power for marine vessel auxiliaries. The reduction of fuel usage after installing the solar PV system on the boat is determined, as well as an economic analysis. The power requirement for the vessel’s electrical system is estimated. The fuel and money saved is also estimated for comparison purposes of the vessel using the solar PV system and the vessel without the PV system. Economic analyses are performed, the Annual Average Cost (AAC) between a vessel using solar PV system and a vessel without solar PV system is estimated, and the period of the return of investment for the vessel with solar PV system is also estimated. The use of a photovoltaic solar system to assist the boat power requirement will benefit the environment through Green House Gas (GHG) reduction, and the use of solar as a supporting alternative energy could cut the cost of boat operation through fuel savings.

scholarly journals Relationship between installed capacity with total installation cost on solar PV among prosumer NEM 2.0 in Malaysia

2021 ◽  
Vol 5 (S1) ◽  
pp. 1467-1479
Author(s):  
Noriza Mohd Saad ◽  
Izzaamirah Ishak ◽  
Amar Hisham Jaaffar ◽  
Mohd Zamri Laton
Keyword(s):  
Energy Savings ◽  
Secondary Data ◽  
Fixed Effect Model ◽  
Capacity Allocation ◽  
Net Energy ◽  
Solar Pv ◽  
Effect Model ◽  
Energy Metering ◽  
Installed Capacity ◽  
Net Energy Metering

Generate energy by Solar PV installation among prosumer, i.e; domestic, commercial, industrial as well as agriculture for self-consumption under Net Energy Metering (NEM) system become more popular in Malaysia. One, if not the only reason, is that day-to-day installation costs are kept at a decreasing rate and this is one of the reasonable ones for future investments and energy savings. By considering this issue, this study is motivated to investigate the relationship between installed capacity with the total installation costs as represented by equipment costs, installed costs, and operating costs. Secondary data was utilized provided by Sustainable Energy Development Authority (SEDA) Malaysia and retrieved from Malaysian Energy Information Hub (MEIH). The data is then run by multivariate regression, which is focused on the random and fixed-effect model. Overall, the findings indicate that there is a significant relationship between installed capacities with total installation costs among all categories of the prosumer in Malaysia. It would be recommended that the policymaker can increase the quota capacity allocation to the prosumer since the costs are at a diminishing rate that led to the take-up rate increase.

scholarly journals Review on Optimised Configuration of Hybrid Solar-PV Diesel System for Off-Grid Rural Electrification.

2018 ◽  
Vol 9 (3) ◽  
pp. 1374
Author(s):  
Amanda Halim ◽  
Ahmad Fudholi ◽  
Stephen Phillips ◽  
Kamaruzzaman Sopian
Keyword(s):  
Solar Energy ◽  
Electricity Generation ◽  
Efficient Solution ◽  
Energy Sources ◽  
Rural Electrification ◽  
Solar Pv ◽  
Pv System ◽  
Solar Pv System ◽  
System Configurations ◽  
Electric Loads

<p>At present, solar energy is perceived to be one of the world’s contributive energy sources. Holding characteristics such as inexhaustible and non-polluting, making it as the most prominent among renewable energy (RE) sources. The application of the solar energy has been well-developed and used for electricity generation through Photovoltaic (PV) as the harvesting medium. PV cells convert heat from the sun directly into the electricity to power up the electric loads. Solar PV system is commonly built in a rural area where it cannot be powered up by the utility grid due to location constrains. In order to avoid the electricity fluctuation because of unsteady amount of solar radiation, PV solar hybrid is the efficient solution for rural electrifications. This paper presents a review on optimised Hybrid Solar-PV Diesel system configurations installed and used to power up off grid settlements at various locations worldwide.</p>

scholarly journals Short Review on recent solar PV policies in Malaysia

2020 ◽  
Vol 191 ◽  
pp. 01002
Author(s):  
A AF Husain ◽  
M H Ahmad Phesal ◽  
M Z Abdul Kadir ◽  
U A Ungku Amirulddin
Keyword(s):  
Solar Energy ◽  
Fossil Fuel ◽  
Harmful Effect ◽  
Cost Effective ◽  
Energy System ◽  
Short Review ◽  
Net Energy ◽  
Solar Pv ◽  
Primary Roots ◽  
Energy Metering

Energy in developing countries essential for economic growth and development. In result of the rapid growth of development, society demands more electricity. In addition to that, unsustainable energy production can have a harmful effect on our environment. Solar energy is the most inexhaustible method of energy. With that has been stated, it is evident that PV technology is starting to be one of the primary roots of energy generator to supply power for development. The economic ambition is to create solar energy more cost effective and efficient, nevertheless, it is still not compatible with fossil fuel. Typically, in order for solar energy to replace the fossil fuel or at least support the development demands of energy, the implementation of solar energy system must increase in homes and plantation projects. This problem drove governments to come up with policies that encourage implementing solar system in homes of citizens. The most used policies are fed in tariff and net energy metering, which is applied in 80 nations round the globe. This paper studied the policies applied in solar energy in Malaysia in the past 8 years. The paper went over each policy and considered their financial and environmental welfare. It did show the effect of the policy applied at the time on the capacity installed in Malaysia.

scholarly journals Comparison of New and Previous Net Energy Metering (NEM) Scheme in Malaysia

2019 ◽  
Vol 18 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Abdul Hafiz Razali ◽  
Md Pauzi Abdullah ◽  
Mohammad Yusri Hassan ◽  
Faridah Hussin
Keyword(s):  
Cost Savings ◽  
Excess Energy ◽  
Net Energy ◽  
Electricity Cost ◽  
Pv Panel ◽  
Electricity Bill ◽  
Energy Metering ◽  
Net Energy Metering ◽  
Malaysian Government

The introduction of new Net Energy Metering (NEM) scheme in 2016 in Malaysia is seen as an improvement from the previous FIT scheme. NEM allows a user to generate, use and export the net excess energy to the grid instead of selling all the generated energy as in FIT scheme. However, the NEM scheme (NEM 2016) still have a problem which is small size residential customers will not get benefited from the scheme in term of electricity bill savings. Therefore, the Malaysian government introducing a new NEM scheme (NEM 2019) to replace previous NEM scheme (NEM 2016) to overcome drawbacks of NEM 2016. This paper will investigate the performance of NEM 2019 overcome the previous problem by comparing the performance of NEM 2019 and against NEM 2016 in term of NPC (net present cost) and electricity cost savings by using HOMER software. The analysis is conducted on three different size of residential customers; small, medium and large with different PV panel sizes from 1kWp to 8kWp. The results show that NEM 2019 will produce lower NPC compared to NEM 2016 for most cases.

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