මණ්ඩලයට නොදැනෙන්න ගෙදර විදුලි බිල අඩු කරන හැටි / How to reduce the electricity bill at home
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සෝලා පැනල් හයිකරගෙන අමාරුවෙ වැටුනද ? ප්රශ්න සහ පිළිතුරු / Sola panel related questions and answers
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විදුලි කප්පාදුවට එරෙහිව නිවසේ සූර්ය පැනල භාවිතය / Is it really cheap to install solar panels in home
• විදුලි කප්පාදුවට එරෙහි...
Smart meters are modern electricity meters giving customers more information about their energy use & control over their bills. An advanced electronic meter ...
A smart meter is an electronic device that records information such as consumption of electric energy, voltage levels, current, and power factor. Smart meters communicate the information to the consumer for greater clarity of consumption behavior, and electricity suppliers for system monitoring and customer billing. Smart meters typically record energy near real-time, and report regularly, short intervals throughout the day.[7] Smart meters enable two-way communication between the meter and the central system. Such an advanced metering infrastructure (AMI) differs from automatic meter reading (AMR) in that it enables two-way communication between the meter and the supplier. Communications from the meter to the network may be wireless, or via fixed wired connections such as power line carrier (PLC). Wireless communication options in common use include cellular communications, Wi-Fi (readily available), wireless ad hoc networks over Wi-Fi, wireless mesh networks, low power long-range wireless (LoRa), Wize (high radio penetration rate, open, using the frequency 169 MHz) ZigBee (low power, low data rate wireless), and Wi-SUN (Smart Utility Networks).
Solar power is the conversion of renewable energy from sunlight into electricity, either directly using photovoltaics (PV), indirectly using concentrated solar power, or a combination. Concentrated solar power systems use lenses or mirrors and solar tracking systems to focus a large area of sunlight into a small beam. Photovoltaic cells convert light into an electric current using the photovoltaic effect.[1]
Photovoltaics were initially solely used as a source of electricity for small and medium-sized applications, from the calculator powered by a single solar cell to remote homes powered by an off-grid rooftop PV system. Commercial concentrated solar power plants were first developed in the 1980s. Since then, as the cost of solar electricity has fallen, grid-connected solar PV systems have grown more or less exponentially. Millions of installations and gigawatt-scale photovoltaic power stations have been and are being built. Solar PV has rapidly become an inexpensive, low-carbon technology.
The International Energy Agency said in 2021 that under its "Net Zero by 2050" scenario solar power would contribute about 20% of worldwide energy consumption, and solar would be the world's largest source of electricity.[2] China has the most solar installations. In 2020, solar power generated 3.5% of the world's electricity, compared to under 3% the previous year.[3] In 2020 the unsubsidised levelised cost of electricity for utility-scale solar power was around $36/MWh,[4] and installation cost about a dollar per DC watt.[5]
Concentrated solar power
A parabolic collector concentrates sunlight onto a tube in its focal point.
Main article: Concentrated solar power
Concentrated solar power (CSP), also called "concentrated solar thermal", uses lenses or mirrors and tracking systems to concentrate sunlight, then use the resulting heat to generate electricity from conventional steam-driven turbines.[16]
A wide range of concentrating technologies exists: among the best known are the parabolic trough, the compact linear Fresnel reflector, the dish Stirling and the solar power tower. Various techniques are used to track the sun and focus light. In all of these systems a working fluid is heated by the concentrated sunlight, and is then used for power generation or energy storage.[17] Thermal storage efficiently allows up to 24-hour electricity generation.[18]
A parabolic trough consists of a linear parabolic reflector that concentrates light onto a receiver positioned along the reflector's focal line. The receiver is a tube positioned along the focal points of the linear parabolic mirror and is filled with a working fluid. The reflector is made to follow the sun during daylight hours by tracking along a single axis. Parabolic trough systems provide the best land-use factor of any solar technology.[19] The Solar Energy Generating Systems plants in California and Acciona's Nevada Solar One near Boulder City, Nevada are representatives of this technology.[20][21]
#madhuraeco #madhurananayakkara #solarpower
Негізгі бет ලඟදීම ඔබේ නිවසටත් ස්මාට් විදුලි මීටර් විදුලි බිල ලැබෙන්නේ ඊමේල් මගින් / New smart electricity meter
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