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Reefton Power Station
Reefton Power Station supplied electricity to the very prosperous gold mining town of Reefton in New Zealand and was the first power station to supply municipal electricity in the Southern Hemisphere.New Zealand Historical Atlas'' – McKinnon, Malcolm (Editor); David Bateman, 1997, Plate 88 It started operation on 4 August 1888. Reefton man George Rich Wylde (1858-1942), son of James Wylde, brought samples of Edison and Swan electric lamps back from a visit to Victoria, Australia returning on 8 January 1883 and a public meeting was called to consider an electricity generating and distribution enterprise for Reefton. Ross & Glendinning had been lighting one of their Dunedin factories with electricity since 1882. The Reefton Electric Light and Power Company was formed in 1886. The decision to build a power station was taken in the same year, following a demonstration of electric lighting in four Reefton hotels. The demonstration was organised by amateur electrician Walter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penstock
A penstock is a sluice or gate or intake structure that controls water flow, or an enclosed pipe that delivers water to hydro turbines and sewerage systems. The term is inherited from the earlier technology of mill ponds and watermills. Hydroelectric systems and dams Penstocks for hydroelectric installations are normally equipped with a gate system and a surge tank. They can be a combination of many components such as anchor block, drain valve, air bleed valve, and support piers depending on the application. Flow is regulated by turbine operation and is nil when turbines are not in service. Penstocks, particularly where used in polluted water systems, need to be maintained by hot water washing, manual cleaning, antifouling coatings, and desiccation. The term is also used in irrigation dams to refer to the channels leading to and from high-pressure sluice gates. Penstocks are also used in mine tailings dam construction. The penstock is usually situated fairly close to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inangahua River
The Inangahua River is located in the northwest of New Zealand’s South Island. It is a major tributary of the Buller River, which it joins at the town of Inangahua Junction. The Inangahua River begins near the Rahu Saddle and flows northwest for , followed by State Highway 7, to the town of Reefton. The Reefton Power Station, now decommissioned, operated with water taken from the river from 1888 to 1949. At Reefton it turns north and continues for , passing Cronadun, before reaching the Buller some from the larger river's outflow into the Tasman Sea near Westport. The Inangahua's tributaries include the Waitahu River, Te Wharau River and Awarau River. The name ''Inangahua'' is from the Māori language; ''inanga'' means whitebait, small edible fish of ''Galaxias'' spp., and ''hua'' may mean the drying and preserving of them in sealed containers or may mean plenty of. The river was known for big catches of whitebait. Prior to 1866 settlers sometimes used the name Thackeray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Power Stations In New Zealand
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 1888
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In New Zealand
This is a list of power stations in New Zealand. The list is not exhaustive – only power stations over 0.5 MW and significant power stations below 0.5 MW are listed. Power plants in New Zealand have different generating roles – for baseload, intermediate or peaking. Baseload generators are those that run continuously (except for maintenance), and include all geothermal and run-of-the-river hydroelectric plants, which must 'use it or lose it'. Intermediate generators are load-following power plants. Peaking power plants generate only for minutes or hours at a time, during the sharpest peaks in electricity demand. Bioenergy Geothermal Hydroelectric Source: Decommissioned hydroelectric Heritage hydroelectric Fossil-fuel thermal Source: Wind Sources: Solar Grid battery storage Proposed power stations Source: See also *Energy in New Zealand *Electricity sector in New Zealand * List of New Zealand spans *New Zealand electricity market ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electricity Sector In New Zealand
The electricity sector in New Zealand uses mainly renewable energy, such as Hydroelectricity, hydropower, geothermal energy, geothermal power and increasingly wind energy. , 82% of electricity is generated from renewable sources, making New Zealand one of the countries with the lowest carbon dioxide emissions from electricity generation. Electricity demand grew by an average of 2.1% per year from 1974 to 2010 but decreased by 1.2% from 2010 to 2013. The New Zealand electricity market, electricity market is regulated by the Electricity Authority (New Zealand), Electricity Authority. Electricity lines businesses, including Transpower New Zealand, Transpower and the distribution lines companies, are regulated by the Commerce Commission. Control is also exerted by the minister of energy in the New Zealand Cabinet, though the minister for state-owned enterprises and the minister for climate change also have some powers by virtue of their positions and policy influence in the governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heritage New Zealand
Heritage New Zealand Pouhere Taonga (initially the National Historic Places Trust and then, from 1963 to 2014, the New Zealand Historic Places Trust) ( mi, Pouhere Taonga) is a Crown entity with a membership of around 20,000 people that advocates for the protection of ancestral sites and heritage buildings in New Zealand. It was set up through the Historic Places Act 1954 with a mission to "...promote the identification, protection, preservation and conservation of the historical and cultural heritage of New Zealand" and is an autonomous Crown entity. Its current enabling legislation is the Heritage New Zealand Pouhere Taonga Act 2014. History Charles Bathurst, 1st Viscount Bledisloe gifted the site where the Treaty of Waitangi was signed to the nation in 1932. The subsequent administration through the Waitangi Trust is sometimes seen as the beginning of formal heritage protection in New Zealand. Public discussion about heritage protection occurred in 1940 in conjunction with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motor–generator
A motor–generator (an M–G set) is a device for converting electrical power to another form. Motor–generator sets are used to convert frequency, voltage, or phase of power. They may also be used to isolate electrical loads from the electrical power supply line. Large motor–generators were widely used to convert industrial amounts of power while smaller motor–generators (such as the one shown in the picture) were used to convert battery power to higher DC voltages. While a motor–generator set may consist of distinct motor and generator machines coupled together, a single unit dynamotor (for dynamo–motor) has the motor coils and the generator coils wound around a single rotor; both the motor and generator therefore share the same outer field coils or magnets.Radio Amateur's Handbook 1976, pub. |
Alternating Current
Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''current'' or ''voltage''. The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with positive direction of the current and vice versa. In certain applications, like guitar amplifiers, different waveforms are used, such as triangular waves or square waves. Audio a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Current
Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC). A term formerly used for this type of current was galvanic current. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''current'' or ''voltage''. Direct current may be converted from an alternating current supply by use of a rectifier, which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alternating current via an inverter. Direct current has many uses, from the charging of batteries to large power sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Grid (New Zealand)
The National Grid is the nationwide system of electric power transmission in New Zealand. The grid is owned, operated and maintained by Transpower New Zealand, a state-owned enterprise, although some lines are owned by local distribution companies and leased to Transpower. In total, the national grid contains of high-voltage lines and 178 substations. Much of New Zealand’s electricity generation is hydroelectric, the majority of which is from power stations on lakes and rivers in the lower half of the South Island, while most of the electricity demand is in the North Island, in particular, the Auckland region. Consequently, large amounts of electricity need to be transmitted long distances from power stations to electricity users, including transmission across Cook Strait through the HVDC Inter-Island link. Investments in new transmission are regulated by the Electricity Commission and the Commerce Commission. In a news release in January 2012, the Commerce Commission report ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotary International
Rotary International is one of the largest service organizations in the world. Its stated mission is to "provide service to others, promote integrity, and advance world understanding, goodwill, and peace through hefellowship of business, professional, and community leaders". It is a non-political and non-religious organization. Membership is by invitation and based on various social factors. There are over 46,000 member clubs worldwide, with a membership of 1.4 million individuals, known as Rotarians. History The first years of the Rotary Club The first Rotary Club was formed when attorney Paul P. Harris called together a meeting of three business acquaintances in downtown Chicago, United States, at Harris's friend Gustave Loehr's office in the Unity Building on Dearborn Street on February 23, 1905. In addition to Harris and Loehr (a mining engineer and freemason), Silvester Schiele (a coal merchant), and Hiram E. Shorey (a tailor) were the other two who attended this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
