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voda 18 maart 2022 06:37

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Akuo Announces Refinancing of 5 Hydroelectric Plants in Bulgaria

Strategic Research Institute
Published on :
18 Mar, 2022, 5:30 am

France-based independent global power producer & developer Akuo has announced that it has successfully secured the refinancing of a portfolio of five operational hydroelectric power plants in Bulgaria with a capacity of 15.5 MW. This deal follows the acquisition, in March 2021, of PVB Power Bulgaria who runs these five-assets that have been operational since 2010-2013 and are located on the Iskar River near Svoghe. Bridge funding from Eiffel Energy Transition Fund made the acquisition possible while the banking refinancing was undertaken by the EBRD and UniCredit Bulbank. Akuo is also partnering with RGREEN INVEST through its INFRAGREEN IV fund, who thus becomes a joint shareholder of these assets alongside Akuo, to the tune of 49%.

This refinancing operation by the EBRD and UniCredit Bulbank enables Akuo to free up financial resources that will be used to develop other greenfield renewable projects in the EBRD's countries of operation.

Bulgaria has set a target of increasing the share of renewable energy in its electricity mix to over 30% by 2030. This target includes a 2.6 GW increase in the country’s renewable electricity capacity to reach almost 7 GW by that time. The Svoghe portfolio will significantly bolster national efforts to meet this objective: by covering the electricity consumption of more than 20,000 Bulgarian households, it represents the equivalent of 35,000 metric tons of C02 emissions avoided annually.

voda 22 maart 2022 07:13

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GE to Refurbish Synchronous Generators at Bitsch Hydro Power Plant

Strategic Research Institute
Published on :
22 Mar, 2022, 5:30 am

GE Hydro Solutions has signed a service contract with HYDRO Exploitation SA, acting on behalf of the asset owner Electra-Massa SA, to refurbish two 120 MVA vertical synchronous generators at the Bitsch power plant station in Wallis, Switzerland. The main objectives of the generators’ refurbishment are to extend the lifetime of the plant for several decades and increase the performance as well as reliability of the power station. In addition, Electra-Massa SA aims to maintain the plant fully operational until and after the concession expires in 2048.

The 340 MW hydropower plant will be equipped with two new state-of-the-art generators tailored to meet the customer's specific operational needs. They will replace the previous equipment which reached the end of its life. Consequently, the hydropower plant Bitsch will benefit from more flexible generators that will improve the power plant’s overall efficiency.

HYDRO Exploitation SA, that operates the plant for Electra-Massa SA, will act as the project owner’s representative. Together with GE Hydro Solutions, the three partners are committed to deliver the highest engineering and design quality, to ensure continuity of operation, and to organize project integration and management. As the sixth largest hydropower plant in Switzerland, the hydropower plant Bitsch plays a major role in the Swiss energy supply. This upgrade of the power plant capacity underlines the role of hydropower as the major source of renewable energy in Switzerland.

GE Hydro Solutions will be responsible for the design studies, the engineering, the manufacturing and the delivery of the two generators. Once the generators are delivered, GE Hydro Solutions will be in charge of the erection and the commissioning of the new equipment.

The first modernized Bitsch unit is expected to be commissioned in August 2024, and the last one is expected to come online in 2025.

Joni-2 28 maart 2022 08:21

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Verbund AG (AT)
Begins Construction Of $88 Million Hydroelectric Power Plant In Mur (CH)
03/28/2022 | 12:23am EDT

(MT Newswires) -- Verbund (VER.VI) on March 25 commenced the construction of a new hydroelectric power plant in Mur, Switzerland, with investments by the group and Energie Steiermark set to reach about 80 million euros ($87.6 million).

The power plant, which could produce about 54 million kilowatt-hours of green energy, is expected to become operational in 2024.

voda 30 maart 2022 06:38

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GE Bags Sao Simao Hydroelectric Power Plant Contract

Strategic Research Institute
Published on :
30 Mar, 2022, 6:30 am

GE Renewable Energy’s Hydro division signed a contract with SPIC Brasil to lead the full modernization project of São Simão Hydroelectric Power Plant’s generating units and auxiliary services. Located in Minas Gerais and Goiás, between the municipalities of Santa Vitória (MG) and São Simão (GO), the plant has six generating units, that deliver up to 1,710 MW, enough energy to supply 6 million homes.

The scope includes the supply of equipment for the turbines, generators, and auxiliary systems, besides the engineering project and integration, assembly and commissioning of the six generating units of São Simão. In addition to the work to be performed by GE's Hydro division, the project will be supported by Powerchina. This company, which is part of the consortium led by GE to execute the project, is responsible for the supply of electrical and mechanical BOP (Balance of Plant) systems, DCS (Digital Control System) and hydromechanics.

The execution of the project is expected to be completed in nine years, covering the entire cycle of engineering, development, integration, supply, assembly, and commissioning. The stages of component acquisition and equipment manufacturing will take place at GE Renewable Energy's unit in Taubaté (Sao Paulo, Brazil) and in partnership with other suppliers, which creates opportunities for other companies operating in the hydroelectric industry and a positive impact for the sector’s supply chain in Brazil and outside the country.

The final phase of the project which will be carried out by experts from GE Renewable Energy, includes the assembly, installation and testing of the equipment.

Bijlage:

voda 31 maart 2022 07:35

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Enel Green Power Using Robotics in Hydropower Sector

Strategic Research Institute
Published on :
31 Mar, 2022, 6:30 am

Digitalization and robotics have very quickly risen to play a key role in the hydropower industry. Robots and drones are used to carry out inspections in areas where there’s insufficient space or that pose a danger to humans. And EGP personnel are at the forefront of developing such systems.

Hydropower has a long history behind it, it’s the oldest renewable energy source that’s ever been used, and a promising future in front of it, one which will see robots playing a prominent role. Indeed, as early as 2020, Enel Green Power was testing a number of robotic systems employed to inspect water pipes from the inside and provide information on their condition. Previously, even with the use of sophisticated digital instruments, such pipe inspections could only be conducted externally, particularly on pipes of a smaller diameter.

Today, hydropower plants play a key role in ensuring the security and stability of electricity supplies. For this reason, hydropower has a central role to play as a facilitator of the energy transition process, it is therefore essential to maintain and improve plant performance, including through the use of drones and robots.

Bijlage:

voda 5 april 2022 06:52

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Aker Solutions Acquires Norwegian Hydropower Company Rainpower

Strategic Research Institute
Published on :
05 Apr, 2022, 6:30 am

Aker Solutions has agreed to acquire Rainpower Holding AS, a leading technology provider to the hydropower industry. The acquisition builds on Aker Solutions’ growth strategy and will further strengthen its offering within renewables. Aker Solutions sees strong industrial synergies in further developing Rainpower into an innovative hydropower technology company to optimize hydropower developments and operations.

Rainpower develops, produces and delivers hydropower turbines, control systems and associated equipment for clients and projects worldwide. The company supplies equipment for new installations and performs upgrades of existing hydropower plants. Rainpower has more than 165 years of history dating back to 1853 when the Norwegian hydropower competence was developed by Kvaerner. The company has been involved in some of the world’s largest projects within hydropower development, including the Three Gorges Dam in China.

Aker Solutions has agreed to acquire 100 percent of the shares in Rainpower from a subsidiary of Aker Horizons, which announced an acquisition of Rainpower in January 2021. Aker Solutions and Rainpower have collaborated on both technical and strategic topics over the past year. Through this collaboration it has become apparent that Aker Solutions has complimentary capabilities with Rainpower, and is well positioned to realize the potential of the hydropower technology company.

The transaction is expected to be completed during the second quarter of 2022. The purchase price is about NOK 100 million, with an additional discretionary element which may bring the purchase price to NOK 150 million. A third-party valuation report has been obtained and the transaction remains subject to various closing conditions, including certain third-party approvals.

Rainpower is currently headquartered in Lillestrøm outside Oslo, Norway, and has offices in Norway, Sweden and China. The company employs about 200 highly skilled employees and offers proprietary technologies for integrated products and services to the hydropower industry worldwide. It has a strong reputation in delivering state-of-the-art technology for the hydropower industry. Rainpower has delivered turbines, control systems and equipment to most of the Norwegian hydropower plants.

voda 4 juli 2022 08:23

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US Launches Programs to Modernize Hydropower Fleet

Strategic Research Institute
Published on :
04 Jul, 2022, 6:30 am

The US Department of Energy has issued a Request for Information seeking public feedback to inform the Bipartisan Infrastructure Law’s nearly USD 630 million in investments in hydropower facilities. President Biden’s Bipartisan Infrastructure Law invests in the “Maintaining and Enhancing Hydroelectricity Incentives” and “Hydroelectric Efficiency Improvement Incentives” programs to modernize the nation’s hydropower facilities and produce clean, affordable power. The funding will cover capital improvement projects that will make hydropower facilities more energy efficient and resilient. Water is a critical resource for generating clean, carbon-free electricity and crucial to reaching President Biden’s goal of a net-zero emissions economy by 2050.

Hydropower facilities, which use the flow of moving water to generate electricity, currently supply 6% of all electricity in the United States and account for 32% of renewable-electricity generation. Hydropower also provides critical energy storage, accounting for 93% of all utility-scale energy storage, helping to ensure that power is available when consumers need it. Many hydropower facilities, however, require upgrades to become more efficient or better integrated with other renewable energy sources.

The Maintaining and Enhancing Hydroelectricity Incentives Program, managed by DOE’s Grid Deployment Office, provides USD 553.6 million in incentive payments to enhance existing hydropower facilities through capital improvements directly related to three main areas: grid resiliency, dam safety, and environmental improvements.

The Hydroelectric Efficiency Improvement Incentives Program, also managed by GDO, provides a total of USD 75 million in incentive payments to owners or operators of existing hydroelectric facilities who may apply for funding to make capital improvements that can increase efficiency by at least 3%.

voda 15 juli 2022 06:56

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GE Commissions 180 MW Bajoli Hydro Project in Himachal Pradesh

Strategic Research Institute
Published on :
14 Jul, 2022, 7:32 am

GE Renewable Energy’s Hydropower businessGE Power India has commissioned the 180 MW Bajoli Holi Project. Three units of 60 MW each have been generating electricity since the project was connected to the grid in March 2022. The 180 MW run-of-the-river power facilities has a head race tunnel of more than 16 km and has been constructed on the river Ravi in the Chamba district of Himachal Pradesh in northern India.

The completion of this project is a step towards using the power potential of the state to support both Himachal Pradesh and the entire northern region of India. In addition to providing the local population with sustainable and clean energy, the Bajoli Holi Hydropower Plant actively contributes to the proper functioning of the country’s infrastructure. For instance, it generates 94 per cent of energy required by the Delhi International Airport Limited – the last 6 per cent coming from on-site solar power plants.

The Bajoli Holi Project was awarded in March 2015. GE Hydro Solutions was responsible for design and engineering, supply, transportation, erection, testing and commissioning of vertical Francis turbines, generators, penstock valve, Main Inlet Valve, digital governing system, excitation system, control and monitoring, protection system, electrical and mechanical balance of plant equipment.

As an engineering and manufacturing supplier of the Bajoli Holi Hydropower Plant, GE Hydro Solutions has cooperated in overcoming challenges and difficulties during the entire execution of the project and provided its customer GMR with a complete set of high-quality and reliable-performance hydropower equipment.

voda 21 juli 2022 08:51

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Webuild Sets Milestone at Rogun Hydropower in Tajikistan

Strategic Research Institute
Published on :
21 Jul, 2.022, 6:30 am

Leading Italy headquartered infrastructure developer Webuild has achieved a major milestone at the Rogun HPP hydropower project in Tajikistan with the commencement of the concrete pour for the construction of the core dam. Located in the upper reaches of the Vakhsh River in the Pamir Mountains west of the Himalayas, Rogun will be the highest dam in the world with a dam crest at 1,300 metres above sea level, breaking the record held by the Nurek Dam, also in Tajikistan. At 335 metres, Rogun will also be the tallest dam in the world.

Rogun Hydropower Plant Project is a massive undertaking that will double the Central Asian country’s production capacity with clean, renewable energy, providing crucial support for its sustainable development.

A project commissioned by OJSC Rogun Hydropower Plant, Webuild is responsible for the main civil works in the construction of the rockfill dam with a loam core.

Rogun already has two turbines that are producing electricity. Unit 5 and 6 each have a capacity of 600 megawatts. The early generation has allowed Tajikistan to reduce power shortages suffered during the winter months, and export part of the electricity produced to neighbouring countries. Once all six turbines each with a capacity of 600 MW have been installed and the project completed, Rogun will have a total installed capacity of 3,600 MW, making it the most powerful hydroelectric station in Central Asia.

voda 3 augustus 2022 06:03

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Gigantische waterbatterij in Zwitserse Alpen moet het Europese net gaan balanceren
admin - Gisteren om 23:01

Een gigantische waterbatterij onder de Zwitserse Alpen kan net zoveel energie opslaan als 400.000 batterijen voor elektrische auto’s. De batterij is vorige maand in gebruik genomen en wordt gebruikt om het elektriciteitsnet mee te balanceren.

Waterkrachtcentrales bestaan al jaren en zijn een duurzame bron van energie. Zonne- en windenergie zijn namelijk afhankelijk van het weer, waardoor je er niet altijd van op aan kunt. De waterkrachtcentrale kan energie van het net halen als er te veel is en het opwekken als het nodig is. Maar omdat we in Nederland geen hoogteverschillen hebben bij gebrek aan bergen, kunnen wij daar niet op inzetten.

© Aangeboden door Change Inc.

Variabele snelheid
Daar hebben ze in Zwitserland geen last van. Er zijn daar verschillende watergrachtcentrales. Maar wat deze centrale – genaamd Nant de Drance – bijzonder maakt, is de pompsnelheid. Deze heeft namelijk een variabele snelheid. En dat is handig als je energie op wilt slaan.

“Met een turbine met een vast toerental moet je wachten tot de centrale op precies de juiste snelheid draait om te synchroniseren met het net”, zegt Pascale Radue, CEO van GE Renewable Energy Hydro tegen CNN, dat de apparatuur voor de faciliteit leverde. “Dit verspilt tijd en energie. Turbines met variabele snelheid leveren onmiddellijk elektriciteit aan het net, zodat er minder risico op stroomuitval is.”

14 jaar onderzoek
Na 14 jaar onderzoek openden Zwitserse onderzoekers afgelopen maand een nieuwe fabriek in de Zwitserse Alpen. Daar wekt de waterkrachtcentrale energie op met water, en kan de mega-batterij de energie opslaan.

De waterkrachtcentrale, waarvan de pompen 600 meter onder grond liggen, werkt als een dynamo. Zodra er energie nodig is, laat de dam water van het hoger gelegen reservoir naar het lager gelegen meer stromen. Een generator zet die waterkracht om elektriciteit. De elektriciteitscentrale van Nant de Drance heeft een vermogen van 900 megwatt en is daarmee – naar eigen zeggen – een van de krachtigste centrales in Europa.

Wanneer er teveel stroom op het net is en de energie moet worden opgeslagen, wordt het water van het lager gelegen deel omboog gepompt. Daarmee kan de centrale 20 miljoen kilowattuur opslaan. Dat is gelijk aan de opslagcapaciteit van 400.000 elektrische autobatterijen.

6.500 olympische zwembaden
Het water van de twee reservoirs is samen 25 miljoen kubieke meter. Dat is net zo veel als 6.500 olympische zwembaden. Het duurt zo’n 20 uur om al het water van het ene naar het andere reservoir te pompen.

Gelegen in het geografische hart van Europa zou Zwitserland stabiliteit kunnen bieden aan het elektriciteitsnet over het hele continent, zegt Rebecca Ellis, manager energiebeleid bij de non-profit International Hydropower Association ook tegen CNN. Maar aangezien het land geen lid is van de Europese Unie, vormt de regelgeving daarvoor momenteel een obstakel. “We moeten daarom nauwere afspraken maken met de EU”, zegt Ellis.

www.msn.com/nl-nl/nieuws/overig/gigan...

voda 23 augustus 2022 07:40

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CHARBONE HYDROGEN to Buy Shawano Hydropower from Northwoods

Strategic Research Institute
Published on :
23 Aug, 2022, 5:30 am

Brossard Quebec based CHARBONE HYDROGEN has announce the executionof a non-binding memorandum of understanding between its fully owned subsidiary Charbone Corporation USA and NORTHWOODS HYDROPOWER, pursuant to which the parties are entering into discussion and negotiation for the acquisition by Charbone USA of the Wolf River Hydro Limited Partnership, which own a 700 kW operating hydropower plant in Shawano in Wisconsin.

Further to the acquisition by Charbone USA of the Wolf River Hydro Limited Partnership, Charbone USA will complete and update its due diligence on the Tower Kleber Limited Partnership and the Black River Limited Partnership, consisting of a total of 2,760 kW portfolio of three operating hydropower plants located in the Onaway region in Michigan.

Charbone brings to the table its expertise in the development and the construction of modular and scalable facilities dedicated to the production of green hydrogen. All plants provide access to Charbone for land space so as to accommodate the green hydrogen facilities while Charbone believes that the actual capacities of the existing plants can be increased by the automation and modernization of the facilities with newer hydro turbine technologies.

Northwoods, Wolf River Hydro Limited Partnership, Tower Kleber Limited Partnership and Black River Limited Partnership are U.S. based businesses, wholly owned by a Canadian family, that have been operating the Michigan and the Wisconsin hydropower plants for over 20 years.

voda 12 september 2022 07:06

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Axpo Postpones Reservoir Renovation for More Winter Power

Strategic Research Institute
Published on :
12 Sep, 2022, 5:30 am

The extensive renovation work at the Gigerwald dam in the Taminatal SG will be suspended immediately and postponed for two years. The postponement is due to the imminent power shortage expected in the upcoming winter. Although the work is critical for the long-term operation of the plant, owing the extreme energy situation the priority will be placed on ensuring the production of up to 160 GWh of energy from the water in the reservoir and recirculation operation.

The Gigerwald dam is part of Kraftwerke Sarganserland, in which Axpo holds a share of 98.5%. The installation was scheduled for extensive renovation this winter and would have required the full drainage of the reservoir. Although the renovation work is necessary for the long-term operation of the plant and cannot be delayed for a longer period, the priority has been placed on utilising the up to 160 GWh of electricity in the winter months to benefit security of supply under the current extreme energy situation. Construction preparations that began in the spring of 2022 have been suspended immediately and renovation work has been postponed until the winter of 2024/25.

Construction work can only take place during the winter because there is less water flow has to be diverted through the construction site. The Gigerwald reservoir will be fully drained in the winter of 2024/25 to ensure that renovation work can be carried out smoothly. The plant is expected to go back into operation in early summer of 2025.

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voda 3 oktober 2022 08:23

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GE Bags Belo Monte Hydropower Maintenance Contract

Strategic Research Institute
Published on :
3 Oct, 2022, 6:02 am

GE Renewable Energy's hydropower business has signed a five-year contract with Norte Energia covering the full scope of routine, planned and corrective maintenance of the Belo Monte 11 GW hydropower plant and its complementary powerhouse 223 MW Pimental.

GE Renewable Energy was previously selected to supply equipment and solutions for the construction and installation of the plants. The contract covers all maintenance work for a total of 24 power generation units. Eighteen of them are located at Belo Monte and another six are at the complementary Pimental powerhouse, located just a few kilometers from the main Belo Monte hydropower plant.

The Belo Monte power plant is the largest hydropower plant in Brazil and the fourth largest in the world. Ensuring the proper maintenance of the Belo Monte project will help make the best use of its assets and resources to generate clean, affordable and reliable energy for millions of Brazilians. To execute the contract, GE Renewable Energy will assemble a team of professionals with expertise in mechanical, electrical, planning, health and safety, administration, and project management.

Bijlage:

voda 19 oktober 2022 06:50

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Axpo Announces Further Investments in Grisons Hydropower

Strategic Research Institute
Published on :
19 Oct, 2022, 4:53 am

Leading Nordic power supplier Axpo announced that Albula-Landwasser Kraftwerke is replacing the switchgear of its hydropower plants in Filisur and Tiefencastel. Thanks to the renewal, the two power plants will continue to reliably produce renewable energy for the equivalent of around 90,000 four-person households.

The switchgear is the interface between the power plants and the electricity grid. It ensures that the electricity produced can be transported away. The switchgears of the Filisur and Tiefecastel power plants have both been in operation for several decades. In order to ensure reliable electricity production in the long term, ALK has decided to renew these switchgears at a cost of around 13 million Swiss francs. The building permits for the corresponding work have been issued.

ALK is constructing new buildings for the 50-kilovolt switchgear at both power plants. The switchgears will therefore be rebuilt from the ground up. This will enable the power plants to continue producing during the realization phase between August 2023 and May 2024. Electricity production will thus be maintained in winter when Switzerland urgently needs domestic electricity.

ALK is a partner plant of Axpo (75%), EWD Elektrizitätswerk Davos AG (15.74%), the canton of Grisons (5%) and the concession municipalities of Albula/Alvra, Bergün, Filisur and Schmitten (4.26%). ALK's power plants in Filisur (65 megawatts) and Tiefencastel (24 megawatts) as well as the Tischbach small hydropower plant use water from the Albula and Landwasser rivers to produce electricity.

voda 16 november 2022 08:15

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GE to upgrade Don Pedro Hydroelectric Power Plant in California

Strategic Research Institute
Published on :
15 Nov, 2022, 1:38 pm

GE Renewable Energy has signed a refurbishment contract with the Turlock Irrigation District to modernize the powerhouse of the Don Pedro hydropower plant in California, which is jointly owned by TID and Modesto Irrigation District. Upon completion of the refurbishment project, the maximum capacity of the facility will increase from 203 MW to approximately 268 MW. This amount of energy is sufficient to meet the energy needed to power approximately 150,000 homes. The new units will increase the power plant's efficiency, operating range and have a design life of 50 years.

The scope of the project includes the replacement of 4 turbines and 3 generators and the repair of one additional generator. The main objective of the refurbishment is to maintain the overall plant equipment reliability for another five decades to come. In addition, the replacement of the units will increase their efficiency and performance in a way that responds to the growing needs of TID and MID customers. This upgrade will also help the Districts accomplish long term clean energy goals, and capture more flexible, fast ramping capacity for grid support.

Beyond providing electricity to the region, the Don Pedro power plant has another important mission. The original dam was built in 1923, with a storage capacity of only 289,000 acre-feet, the original dam held virtually enough water to accommodate farmers’ irrigation needs for a single growing season. Recognizing the need for increased storage to weather multiple dry year periods, the new Don Pedro Project, including the current dam and powerhouse, was built, creating a 2,030,000 acre-feet reservoir, not only providing for irrigation needs but also creating opportunities for recreation, flood control, and increased generation.

Bijlage:

voda 25 november 2022 16:50

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Stuwmeren en waterkrachtcentrales vallen droog
Artikel van Cécile Janssen • 9 uur geleden

Bij hernieuwbare energie denken we vooral aan zonne- en windenergie. Dat zijn de technologieën waarmee we onze onafhankelijkheid van olie en kolen willen bewerkstelligen en de broeikasgasuitstoot reduceren. Er is nog een heel andere schone energiebron, die ons al eeuwenlang goede diensten bewijst: waterkracht. Maar die oude bron van schone energie dreigt letterlijk op te drogen als gevolg van de klimaatverandering.

In 2021 bereikten we een mijlpaal: voor het eerst kwam er wereldwijd meer elektra uit schone bronnen dan uit kolen. "Zon, wind, waterkracht, nucleair en bioenergie leverden in 2021 38% van de opgewekte hoeveelheid elektriciteit; kolen bleven steken op 36%," bleek uit de Global Electricity Review 2022 van denktank Ember.

Waterkracht is, na kolen en gas, de derde bron van 's werelds elektriciteit. In 2021 leverde waterkracht 15% van de wereldwijde elektriciteitsvoorziening, meer dan alle andere hernieuwbare bronnen samen. Paraguay haalt 100% van zijn elektriciteit uit waterkracht, een land als Noorwegen meer dan 90% en Spanje en Frankrijk meer dan 10%.

Waterkrachtcentrales zijn bovendien betrouwbaar: ze leveren gemiddeld 42% van de tijd stroom, tegen 25% voor zonnepanelen en 12% voor windmolens. Bovendien kunnen ze flexibel ingezet worden voor de elektriciteitsproductie; ze zijn simpel aan en uit te zetten door water langs de turbines te leiden. Mits er water is.

waterkracht wereldwijd
© Aangeboden door Foodlog
The World's biggest Hydro Generators, Ember
Waterpeil

Maar de traditionele betrouwbaarheid van waterkrachtcentrales neemt drastisch af door droogte en hitte die het gevolg zijn van klimaatverandering.

Deze week moest de Mequinenza-centrale, de op 4 na grootste waterkrachtcentrale van Spanje, voor het eerst sinds de bouw in 1966 worden stilgelegd. Het reservoir dat de centrale voedt, heeft nog maar 23% van zijn capaciteit, aldus Gizmodo.

Afgelopen zomer lag de reusachtige waterkrachtcentrale in de Drieklovendam in de Chinese Yangtze, zo goed als stil. Het productievermogen was drastisch afgenomen door hoge temperaturen en ernstige droogte stroomopwaarts, waardoor het stuwmeer tot minimale afmetingen was ingekrompen. Het waterpeil van Lake Mead, achter de Californische Hooverdam is sinds de bouw van de dam in 1937 nog nooit zo laag geweest; het meer is 73% geslonken.

Balans

Als de stuwmeren droog en de waterkrachtcentrales stil vallen, wordt pas goed duidelijk welke evenwicht stuwdambeheerders moeten zien te vinden. Zij moeten de vraag naar water door de landbouw, steden, productie en vervoer goed verdelen. Stuwdammen zoals de Hooverdam leveren water voor de irrigatie van gewassen en dus bijvoorbeeld de Amerikaanse wintergroenten. Ze voorzien steden van drinkwater (zoals Las Vegas, dat voor 90% van zijn waterbehoefte afhankelijk is van de Hooverdam en Los Angeles). Maar ze moeten ook zeker stellen dat de waterwegen voor de scheepvaart toegankelijk blijven (de Drieklovendam schroefde de elektriciteitsproductie omlaag om het scheepsverkeer naar Chongqing, de grootste stad in Midden-China, veilig te stellen) én dat er elektriciteit geleverd wordt. China 'loste dat op' deze zomer door de elektriciteitsleveringen aan grote bedrijven (Apple, Tesla) op te schorten en meer kolen en olie te verstoken.

Minder waterkracht

Alles bij elkaar leidt dat tot de verwachting dat het belang van waterkracht in de elektriciteitsopwekking van de wereld gaat afnemen. Klimaatverandering vermindert hun betrouwbaarheid.

Nieuwe stuwmeren zijn ongewenst omdat die grote ecologische en humane gevolgen hebben. Voor de bouw van de Drieklovendam moesten 1,3 miljoen Chinezen verhuizen - en wind- en zonne-energie groeien gewoonweg harder. Bloomberg-analisten verwachten dat "tot 2050 de elektriciteitsopwekking met waterkracht wereldwijd nog met slechts 18% zal toenemen, terwijl zonne-energie minstens zal verachtvoudigen en windenergie verdrievoudigen," aldus het FD.

Dat neemt niet weg dat er ook voor stuwmeren volop geïnnoveerd wordt. Zo drijven in China al grote vlotten met zonnepanelen in stuwmeren. Die leveren extra stroom en gaan tegelijk verdamping tegen. Ook 'pompcentrales' zijn in opkomst. Dat zijn systemen die bij weinig elektriciteitsvraag het water terugpompen in een reservoir, vanwaaruit het bij een grotere stroomvraag weer langs de turbines geleid wordt. Zo ontstaat, in combinatie met wind- en zonne-energie een gesloten systeem dat continu emissievrij elektriciteit kan produceren. China zou in 2025 in totaal al 270 gigawatt opwekken met pompcentrales. Voor waterkrachtcentrales staat dan nog maar 60 gigawatt gepland.

Voor meer, zie link:

www.msn.com/nl-nl/gezondheid/other/st...

voda 8 december 2022 10:18

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Rio Tinto Completes Kemano Hydropower Project

Strategic Research Institute
Published on :
8 Dec, 2022, 4:30 am

Rio Tinto has commissioned a second tunnel to carry water into the Kemano Powerhouse in British Columbia in Canada, marking the end of the Kemano T2 hydropower project. The new, 16-kilometre tunnel was filled up with water and produced its first megawatt of electricity in July 2022 after its construction was completed in May 2022. Both T1 and T2 are now operating together, ensuring the long-term reliability of the power supply for Rio Tinto’s BC Works aluminium smelter in Kitimat and neighbouring communities.

The original tunnel was developed in the 1950s and operated on its own for over 70 years. At the time, a 50-metre long intake stub-tunnel was also built at Tahtsa Lake, but the construction of the second tunnel only started in the early 1990s. The project was then halted in 1995 after 8.4 kilometres, then restarted in 2018 to refurbish the initial portion of the tunnel and complete the last 7.6 kilometres. This final section of the tunnel took 30 months to dig, using a 1,300 tonne tunnel boring machine named tl’ughus by the Cheslatta Carrier Nation after a legendary giant monster snake.

voda 14 december 2022 09:52

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GE Commissions Pumped Storage Unit at Jinzhai Hydropower Plant

Strategic Research Institute
Published on :
14 Dec, 2022, 4:15 am

GE Hydro Solutions was selected by Anhui Jinzhai Pumped Storage Power, one of the divisions of State Grid XinYuan, to supply four new 300 MW pumped storage turbines, generator-motors as well as the balance of plant equipment for the Anhui Jinzhai pumped storage power plant located in the Jinzhai County, Anhui Province, China. The first two units have been successfully delivered to the project, have passed the trial operation period, and are now connected to the grid.

The 1.2 GW project will play a role to help China achieve its goal to build more than 200 pumped storage stations with a combined capacity of 270 gigawatts by 2025 (Source: Bloomberg). The project annual generating capacity represents about 1.4 times the annual household electricity consumption in Jinzhai. Acting as a sustainable large-scale energy storage system, the Jinzhai pumped storage station will save up to 89,500 tons of coal and reduce 179,000 tons of carbon dioxide emissions every year.

These pumped storage units will act as giant batteries that will help solve grid stability challenges for the province: water is pumped from the lower to the upper reservoir in times of surplus energy and, in times of demand, water from the upper reservoir is released, generating electricity as the water passes through the turbine.

voda 23 januari 2023 07:24

0

Charbone Hydrogen to Acquire 3 Hydropower Plants in Michigan

Strategic Research Institute
Published on :
23 Jan, 2023, 3:30 am

Brossard Québec based Charbone Hydrogen has concluded the final negotiations and executed the Purchase and Sale Agreement between its wholly owned subsidiary, Charbone Corporation & Northwoods Hydropower, for the acquisition of all of the general partner and limited partner interests of Tower Kleber Limited Partnership a Michigan Limited Partnership and Black River Limited Partnership, respectively the owner of the Tower 560 kW, Kleber 1,200 kW and Alvemo 1,000 kW operating hydropower plants in the Onaway in Michigan area. The purchase price for the acquisition is USD 3.6 billion, subject to adjustments.

The terms and conditions of PSA stipulate that the acquisition of TKLP and BRLP is to be closed on or before February 28, 2023, subject to customary closing conditions.

Charbone’s strategy is to acquire its own hydropower plants, modernize and optimize them to increase their production capacity and, consequently, the value of the assets for Charbone and our shareholders, and to further assist Charbone with its deployment of a green hydrogen regional hub in Michigan and other locations.

Charbone plans to develop and construct modular and scalable green hydrogen production facilities in both Wisconsin and Michigan within the next few years. All plants provide land space to accommodate green hydrogen facilities or increase capacities by the automation and modernization of the facilities with newer hydro turbines and other technologies that would allow Charbone USA to produce power at one end and then to transmit its own power via utilities’ power lines, subject to a transmission fee, to a hydrogen production facility in a large industrial or urban center close to end users of such hydrogen.

The Northwoods management and operation teams have agreed to continue to perform their duties under Charbone’s ownership and will work and assist Charbone’s engineering team to implement optimisation, modernization, and automation projects at each of the plants. Charbone aims to be one of the first green hydrogen producers in the Midwestern United States.

Charbone is a Canadian green hydrogen company established in North America. The company’s strategy consists of developing modular and expandable hydrogen facilities.

voda 7 februari 2023 07:17

0

GE Connects All Units of Jinzhai Pumped Storage Hydro Power Plant

Strategic Research Institute
Published on :
7 Feb, 2023, 3:12 am

In line with the planned schedule, all units of the Jinzhai pumped storage power plant have now been successfully connected to grid and completed 15 days of trial operation, by this moment, all units are under commercial operation.

Under the contract signed in 2017, GE Hydro Solutions was selected by Anhui Jinzhai Pumped Storage Power, one of the divisions of State Grid Xin Yuan, to supply four new 300 MW pumped storage turbines, generator-motors as well as the balance of plant equipment for the Anhui Jinzhai pumped storage power plant located in the Jinzhai County, Anhui Province, China. The first two units were connected to the grid in October 2022.

The 1.2 GW Jinzhai hydro power plant project will play a key role in this journey to a stronger energy mix in the country. The project annual generating capacity represents about 1.4 times the annual household electricity consumption in Jinzhai. Acting as a sustainable giant energy storage system, the Jinzhai pumped storage station will save up to 120,000 tons of coal and reduce 240,000 tons of carbon dioxide emissions every year.

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