Electrical performance results of an energy efficient building with an integrated photovoltaic system

2010 ◽  
Vol 21 (3) ◽  
pp. 2-8 ◽  
Author(s):  
Sosten Ziuku ◽  
Edson L. Meyer
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Electrical Power ◽  
Electrical Energy ◽  
Photovoltaic System ◽  
Electrical Performance ◽  
Solar Panels ◽  
Building Integrated Photovoltaics ◽  
The North ◽  
Indoor And Outdoor

A 3.8 kW rooftop photovoltaic generator has been installed on an energy efficient house built at the University of Fort Hare, Alice campus, South Africa. The system, located on the north facing roof, started generating electrical power in February 2009. In addition to providing electrical energy, the photovoltaic panels also act as the building roofing material. An instrumentation and data acquisition system was installed to record the indoor and outdoor ambient temperature, indoor and outdoor relative humidity, wind speed and direction, solar irradiance, electrical energy produced by the solar panels and the household energy consumption. This paper presents the initial results of the electrical performance of the building integrated photovoltaics (BIPV) generator and energy consumption patterns in the energy efficient house.

scholarly journals Electrical system design of solar powered electrical recreational boat for Indonesian waters

2018 ◽  
Vol 67 ◽  
pp. 04011
Author(s):  
Sunaryo Sunaryo ◽  
Adri Wirawan Ramadhani
Keyword(s):  
Solar Energy ◽  
Fossil Fuel ◽  
Electrical Power ◽  
Electrical Energy ◽  
Green Energy ◽  
Solar Panels ◽  
Electrical System ◽  
Literature Study ◽  
The Government ◽  
Solar Powered

Indonesia has more than 17,000 islands and has plenty of beautiful beaches and underwater spots which have great potential for maritime tourism. Tourism was ranked 3rd on Indonesia's foreign income and plays an important role for the country’s ecomony. Despite having potential advantages, the government has not yet maximized its efforts to develop the attractiveness of its maritime tourism. Beside the beautiful spots Indonesia is also blessed with all year long sun shine, which could be tapped as renewable and green energy as substitution to fossil fuel. Refer to these great advantages of natural resources the research was aimed to support the government’s program in developing its maritime tourism and to promote the use of green and renewable energy by designing a solar-powered tourism recreational boat which has 12 meters of length. The paper is focused on the design of solar energy and its electrical system, which includes conversion of solar energy to electrical energy and store it in the battery, the required electrical power is also predicted based on the appliances and equipment installed in the boat, the optimum attachment of solar panels on the boat structure is also calculated. All the methods and information we use are obtained from literature study, discussion with experts, and surveys to Jagur as solar-powered electric boat from Universitas Indonesia.

scholarly journals Optimalisasi Stand-Alone Photovoltaic System dengan Implementasi Algoritma P&O-Fuzzy MPPT

2018 ◽  
Vol 10 (1) ◽  
pp. 1-10
Author(s):  
Dimas Juniyanto ◽  
Tatyantoro Andrasto ◽  
Suryono Suryono
Keyword(s):  
Renewable Energy ◽  
Energy Use ◽  
Hardware Implementation ◽  
Electrical Energy ◽  
Buck Converter ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Solar Panels ◽  
Fuzzy Algorithm ◽  
Point Tracking

The need for electrical energy continues to increase every time. Concerns about the depletion of fossil energy reserves encourage the acceleration of the development of renewable energy use. One of renewable energy is the solar energy. Due to the irreversible irradiation conditions, it takes controls to keep the solar panel's maximum power. The most widely in Maximum Power Point Tracking (MMPT) is Perturb Algorithm and Observe (P&O) but P&O Algorithm has deficiency of oscillations when steady state and MPP trace errors when irradiation changes rapidly. In this paper proposed P & O-Fuzzy algorithm is a modification of conventional P & O to improve the efficiency of solar panels. This research uses Matlab for simulation and hardware implementation using microcontroller Arduino Uno and buck converter topology. The result of simulation and hardware implementation, conventional P & O has an average efficiency of 85.03% while MPPT modification with P & O-Fuzzy algorithm can improve MPP tracking efficiency with 89.67%.

scholarly journals Energy Consumption Optimization in Irrigation Networks Supplied by a Standalone Direct Pumping Photovoltaic System

2018 ◽  
Author(s):  
M. A. Pardo ◽  
Juan Manzano ◽  
Diego García
Keyword(s):  
Energy Consumption ◽  
Photovoltaic System ◽  
Solar Panels ◽  
Available Energy ◽  
Water Demands ◽  
Irrigation Networks ◽  
Energy Consumption Optimization ◽  
Programming Software ◽  
Schedule Type

Due to the fact that irrigation networks are water and energy-hungry and that both resources are scarce, many strategies have been developed to reduce this consumption. Otherwise, solar energy sources have become a green alternative with lower energy costs and, as a consequence, lower environmental impacts. In this work, it is proposed a new methodology to select the scheduled program for irrigation which minimizes the number of photovoltaic solar panels to be installed and which better fits energy consumption (calculated for discrete potential combinations; using a programming software to assist) to available energy obtained by panels without any power conditioning unit. So, the irrigation hours available to satisfy the water demands are limited by sunlight, the schedule type of irrigation has to be rigid (rotation predetermined) and the pressure at any node has to be above the minimum pressure required by standards. A real case study has been performed.

SIMULATION BASED COMPLEX ENERGY ASSESSMENT OF OFFICE BUILDING FENESTRATION

2010 ◽  
Vol 16 (3) ◽  
pp. 345-351 ◽  
Author(s):  
Violeta Motuzienė ◽  
Egidijus Saulius Juodis
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Energy Demand ◽  
Office Building ◽  
Negative Effects ◽  
Energy Assessment ◽  
The North ◽  
Complex Evaluation ◽  
Lighting Energy ◽  
Glazed Facade

The number of office buildings with highly fenestrated facades is currently increasing in Lithuania and neighboring countries. Highly fenestrated facades reduce energy consumption for lighting and simultaneously increase energy consumption for heating, cooling, air conveying and may cause thermal and visual discomfort. Pursuing to reduce negative effects of the highly glazed facade, special glasses are frequently used. However, such windows usually increase demand for lighting energy. Therefore, when making early decisions about glazing the building, it is important to have a complex evaluation of energy demand related to the specific case. The paper presents the results of analysis made using energy simulation tools. The obtained results have shown that when shading is not applied, the north is the most energy efficient orientation to glazing for an air conditioned office building in cool climate zones like Lithuania. The most energy efficient window‐to‐wall ratios (WWR) for the south, east and west oriented façade are 20%, whereas for the north it makes 20–40%. However, such WWR values do not satisfy standard requirements for day lighting. Santrauka Pastaraisiais metais Lietuvoje ir kaimyninese šalyse daugeja administracines paskirties pastatu, kuriu dauguma išoriniu atitvaru yra skaidrios. Didesnis istiklinimo plotas lemia mažesnius energijos poreikius apšvietimui, tačiau didina šildymo ir vesinimo sistemu energijos poreikius, sukelia šilumini bei vizualini diskomforta. Neigiamai dideliu skaidriu atitvaru itakai sumažinti naudojami tamsinti ir kitu specialiu charakteristiku stiklai, tačiau tai savo ruožtu didina energijos poreiki apšvietimui. Todel, priimant sprendimus del pastato istiklinimo, svarbu prieš tai kompleksiškai išnagrineti konkretaus sprendimo itaka pastato energijos poreikiams. Straipsnyje pateikiama modeliuojant gautu rezultatu analize. Rezultatai parode, kad vesaus klimato šalyse, kurioms priklauso ir Lietuva, kondicionuojamu administraciniu pastatu fasadu, kai nenaudojamos apsaugos nuo saules priemones, energiškai efektyviausias istiklinimas yra i šiaures puse. Energiškai efektyviausias santykinis fasado istiklinimo plotas pietines, rytines ir vakarines orientacijos fasadams yra 20 %, o šiaurines ‐ 20–40 %. Tačiau tokie istiklinimo plotai neatitinka norminiu natūralaus apšvietimo reikalavimu.

THE POTENTIAL ECONOMIC ANALYSIS OF SOLAR HOME SYSTEM WITH SWITCHING METHOD ON HOUSEHOLD ELECTRICITY SCALE

2020 ◽  
Vol 9 (2) ◽  
pp. 125-134
Author(s):  
Kurnia Paranita Kartika ◽  
Riska Dhenabayu
Keyword(s):  
Electrical Power ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Point Of View ◽  
Solar Panels ◽  
Economic Point ◽  
Household Appliances ◽  
Cost Of Energy ◽  
Solar Home System ◽  
Switching Method

This study aims to design a Solar Home System with an Arduino-based Smart Switching system so that the use of electrical energy generated by solar panels can be adjusted without adding power from other electricity sources, such as PLN. Calculation of Leveled Cost of Energy (LCOE) is used as the basis for the switching process that will be carried out to regulate the use of household appliances that are routinely used, regulate electricity consumption automatically, minimize usage, and calculate the effectiveness of electric power usage. The way SHS works is to collect electrical energy from sunlight, then convert DC voltage to AC so that it can be used to run household electronic equipment. To accommodate the adequacy of electrical power, an automatic adjustment is made for household appliances that are routinely used, namely house lights, which includes setting the lights on and off and the number of lights that can be activated. The advantage of this research is that the SHS system is integrated with the automatic setting of the lights installed in the house so that the number of lights on will adjust the availability of electrical energy in the battery. In addition, with the LCOE method, the level of usage can be calculated so that users can save electricity. From the results of usage testing, it is found that the application of this switching technology provides benefits for users because it is no longer dependent on PLN supply. From an economic point of view, based on the calculation of Leveled Cost of Energy (LCOE), there is a kWh value savings of Rp. 77, - for each kWh price or about 4.53% compared to purchasing electricity with prepaid mode.

scholarly journals Intelligent Energy Management Strategy for Automated Office Buildings

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4326 ◽  
Author(s):  
Simplice Igor Noubissie Tientcheu ◽  
Shyama P. Chowdhury ◽  
Thomas O. Olwal
Keyword(s):  
Energy Consumption ◽  
Intelligent System ◽  
Weather Condition ◽  
Electrical Energy ◽  
Integrated System ◽  
Office Buildings ◽  
Photovoltaic System ◽  
Energy Management Strategy ◽  
Significant Saving ◽  
The Impact

The increasing demand to reduce the high consumption of end-use energy in office buildings framed the objective of this work, which was to design an intelligent system management that could be utilized to minimize office buildings’ energy consumption from the national electricity grid. Heating, Ventilation and Air Conditioning (HVAC) and lighting are the two main consumers of electricity in office buildings. Advanced automation and control systems for buildings and their components have been developed by researchers to achieve low energy consumption in office buildings without considering integrating the load consumed and the Photovoltaic system (PV) input to the controller. This study investigated the use of PV to power the HVAC and lighting equipped with a suitable control strategy to improve energy saving within a building, especially in office buildings where there are reports of high misuse of electricity. The intelligent system was modelled using occupant activities, weather condition changes, load consumed and PV energy changes, as input to the control system of lighting and HVAC. The model was verified and tested using specialized simulation tools (Simulink®) and was subsequently used to investigate the impact of an integrated system on energy consumption, based on three scenarios. In addition, the direct impact on reduced energy cost was also analysed. The first scenario was tested in simulation of four offices building in a civil building in South Africa of a single occupant’s activities, weather conditions, temperature and the simulation resulted in savings of HVAC energy and lighting energy of 13% and 29%, respectively. In the second scenario, the four offices were tested in simulation due to the loads’ management plus temperature and occupancy and it resulted in a saving of 20% of HVAC energy and 29% of lighting electrical energy. The third scenario, which tested integrating PV energy (thus, the approach utilized) with the above-mentioned scenarios, resulted in, respectively, 64% and 73% of HVAC energy and lighting electrical energy saved. This saving was greater than that of the first two scenarios. The results of the system developed demonstrated that the loads’ control and the PV integration combined with the occupancy, weather and temperature control, could lead to a significant saving of energy within office buildings.

scholarly journals Feasibility Study on Installation of Rooftop Photovoltaic System in Complied with Thailand Energy Building Code

2020 ◽  
Vol 186 ◽  
pp. 01004
Author(s):  
Pathomthat Chiradeja ◽  
Atthapol Ngaopitakkul
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Electrical Power ◽  
Current Trend ◽  
Building Energy ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Economic Perspective ◽  
Pv System

Renewable energy especially solar energy has become a significant part in electrical power generation with its advantage in the environmentally friendly and current trend of decrease in installation cost. The photovoltaic (PV) system on a rooftop is one of the power generating system based on renewable energy that can fit building to utilize space efficiently. This paper is analyzing the feasibility of installing a solar PV rooftop on the building using a case study building located in Bangkok, Thailand. The performance will be evaluated in term of both energy and economic perspective. The comparison with Thailand building energy code also been done to show that overall energy consumption with PV system complies with the law. The result has shown that with rooftop photovoltaic system installation, annual energy consumption in the building can be reduced significantly and it can achieve feasibility in term of economic perspective.

scholarly journals POTENSI PEMANFAATAN ATAP GEDUNG PUSAT PEMERINTAHAN KABUPATEN BADUNG UNTUK PLTS ROOFTOP

2018 ◽  
Vol 5 (2) ◽  
pp. 119
Author(s):  
I Dewa Gde Yaya Putra Pratama ◽  
I Nyoman Satya Kumara ◽  
I Nyoman Setiawan
Keyword(s):  
Total Energy ◽  
Electrical Power ◽  
Electrical Energy ◽  
South Side ◽  
North East ◽  
The North ◽  
North Side ◽  
Simulation Results ◽  
East West

In the RUPTL PT PLN Years 2017 untill 2026, the goverment aim to reach 5000 MW of PV plant potential in 2025. But, until November 2016, the number of PV plant in Indonesia is around 11 MW. To reach the 5000 MW target, many approach must be use. One of the approach is install PV plant on goverment buildings. Pusat Pemerintahan Kabupaten Badung (Puspem Badung) is a goverment buildings complex which located in Badung Regency, Bali is one of the goverment building that can be use for this approach. This paper aim to know the potency of electrical power dan electrical energy produced by Puspem Badung if the PV plant installed on the north, east, west, and south side of the roof. Electrical energy produced by PV plant is simulated by using System Advisor Model (SAM). From the simulation results, north side of the roof can produce energy of 1.847.361 kWh/year. From the analysis, the total energy that can be produced by PV plant is 6.169.092 kWh/year. This amount can supply Puspem Badung energy need by 124,72 %.

scholarly journals Energy-efficient desalination by forward osmosis using responsive ionic liquid draw solutes

2015 ◽  
Vol 1 (3) ◽  
pp. 341-347 ◽  
Author(s):  
Yufeng Cai ◽  
Wenming Shen ◽  
Jing Wei ◽  
Tzyy Haur Chong ◽  
Rong Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Forward Osmosis ◽  
Electrical Energy ◽  
High Flux ◽  
Electrical Energy Consumption ◽  
Thermally Responsive

New thermally responsive ionic liquid draw solutes generate high flux against seawater with substantially reduced electrical energy consumption.

ANÁLISE TÉCNICO ECONÔMICA DO APROVEITAMENTO DA PALHADA DA CANA-DE-AÇÚCAR NA GERAÇÃO DE ENERGIA ELÉTRICA NO NORTE DO PARANÁ

2017 ◽  
Vol 32 (2) ◽  
pp. 120
Author(s):  
Thiago Ometto Zorzenoni ◽  
Rai Rigonatto Batista ◽  
Rai Rigonatto Batista ◽  
Cristiane De Conti Medina ◽  
João Tavares Filho
Keyword(s):  
Power Generation ◽  
Electrical Power ◽  
Electrical Energy ◽  
Industrial Area ◽  
Primary Energy ◽  
Selling Price ◽  
Fleet Sizing ◽  
The North ◽  
Technical And Economic Analysis ◽  
The City

A palhada representa um terço da energia primária da cana-de-açúcar, mas a sua utilização ainda é incipiente, apesar da grande potencialidade para o seu aproveitamento. O objetivo do trabalho foi avaliar o potencial de geração de energia elétrica da palhada de cana-de-açúcar em conjunto com o bagaço, através de uma análise técnico-econômica. Realizou -se o dimensionamento de uma frota dedicada ao recolhimento da palhada e de uma nova planta de cogeração, com substituição das caldeiras e turbinas existentes, inclusive as turbinas de acionamento dos equipamentos de preparação e extração, em uma usina típica do norte do Paraná. Foram estimados os investimentos necessários para a aquisição dessa frota e da modernização proposta para a área industrial. Os custos do recolhimento da palhada e da geração de energia elétrica foram calculados, bem como o preço mínimo de venda da energia. Também foram calculados a quantidade de consumidores residenciais e os municípios que poderiam ser abastecidos por essa energia. A capacidade de exportação é de 111,912 kWh por tonelada de cana-de-açúcar, com custo da palhada no pátio de bagaço da usina a R$68,08 t-1, custo da energia-elétrica de R$125,55 MWh e preço mínimo de comercialização da energia a R$316,64 MWh. A energia elétrica exportada pode atender uma população de 87.946 pessoas, o que corresponde a energia consumida pela cidade onde estaria localizado o projeto e de mais seis municípios canavieiros do Norte do Paraná. O projeto proporciona a criação de 96 novos empregos diretos.PALAVRAS-CHAVES: Cogeração, eletricidade, bioenergia, biomassa, enfardamento. TechnIC-economic evaluation of sugarcane straw FOR power generation in ParanA STATEABSTRACT: The straw represents one-third of the sugarcane’s primary energy, but its exploitation is still incipient, despite having a huge potential for its utilization. This research aimed to evaluate the potential energy generation of sugarcane residues together with the bagasse, through a technical and economic analysis. The fleet sizing dedicated to straw harvesting and a new combined heat and power plant, replacing the existing boilers and turbines, inclusive the turbines of preparation and extraction, was made in a north of Parana’s typical sugarcane mill. All the investments required were estimated in order to purchase this new fleet and proposals for the modernization of the industrial area. The straw harvesting and electrical power generation expenses were determined, as well as the energy’s minimum selling price. The residential consumers were also estimated and as well as the cities that could be supplied with this energy. The export capability is 111.912 kW per ton of cane, the straw in the plant’s stockyards R$68.08 t-1, electrical energy cost R$125.55 MWh and the energy selling minimum price, R$316.64 MWh. The exported energy attends an 87,946 population, what corresponds to the power consumption of the city where the project takes place and over 6 sugar cane producer cities in the North of Parana. This project provides 96 new direct employment creation.KEYWORDS: Cogeneration, electricity, bioenergy, biomass, baling.

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