Small Hydro

Work progresses on several small plants in Norway

A significant amount of work is advancing at small hydro projects in Norway.

First, Smakraft AS has named two manufacturers to supply equipment for its portfolio of small projects: Leroy Somer Norden Ab of Sweden and Koncar-Generators and Motors of Croatia.

The developer said it proposed framework agreements for two years beginning in 2011, with options to extend twice for periods of two years each. With a total scope of supply at about 10 units per year, Smakraft said estimated cost would be NOK115 million to 120 million (US$18.75 million to $19.5 million).

Bergen-based Smakraft builds and operates small run-of-river projects, with 23 operating and another 10 under construction.

Second, the Nordic Investment Bank (NIB) and Norway’s Sparebanken Vest approved a NOK500 million ($88.9 million) loan in October 2011 for construction and upgrade of small projects.

NIB is providing a 10-year-maturity loan to finance Sparebanken Vest’s loan program for construction of new and upgrading of existing small projects from 2010-2013 within western Norway.

Thirdly, consultant Norconsult AS awarded contracts in September 2011 to two Norwegian companies for construction and electromechanical equipment for the 5.6 MW Nye Folkedal project.

Nye Folkedal (New Folkedal) is to replace Hardanger Energi AS’s 950 kW Folkedal project, which was built in 1939 and upgraded in 1962, on the Folkedal River in Hordaland County.

Spilde Entreprenor As received a contract to restore the dam, build a new 900 meter-long tunnel and power station, and drill a 330 meter-long shaft. Norconsult said four bidders made offers between NOK49.3 million and 56.3 million ($8.5 million and $9.7 million).

At Folkedal Dam on the Folkedal River in Norway, the original 950 kW generating facility is being replaced with a 5.6 MW powerhouse.

AS Fadum Tekniske of Norway received a contract to supply two Pelton turbines with synchronous generators, controls, two main stop valves, inlet pipes, a cooling water system, and electrotechnical equipment. The contract also includes project management and administration, engineering design, procurement, installation, testing, and commissioning. Norconsult said six bidders made offers between NOK11.2 million and 16.4 million ($1.9 million and $2.8 million).

Fourthly, Norwegian utility Dalane Kraft AS is proceeding with development of the 5 MW Haukland project at Lund.

The company plans to install one horizontal Francis turbine-generator in a new power station to be built at the site of the 3.9 MW Haukland project. The unit is to be designed for maximum flow of 2.2 m3/sec and head of 246 meters. The utility also plans to install a 1,110 meter-long penstock for the new power station, replacing the existing station.

Czech firm awards contracts to equip Klastersky, build Doudlevce

Hydro developer RenoEnergie a.s. has awarded contracts to Czech firms to equip the Klastersky project and to build the 180 kW Doudlevce project in the Czech Republic.

The developer awarded a CZK10 million (US$548,445) contract in November 2011 to Hydrohrom s.r.o. to supply turbines and other equipment for Klastersky, on the Otava River. Hydrohrom was one of two bidders for the work.

RenoEnergie awarded a CZK19.4 million ($1 million) contract to the consortium Sdruzeni firem MVE Doudlevce to construct the Doudlevce small hydro on the left bank of the Radbuza River. Led by Metrostav of Prague, the consortium was one of three bidders for the work.

Solomon Islands to develop 14 MW Tina River project

The government of the Solomon Islands is working to hire a firm to develop the 14 MW Tina River project on a build-own-operate-transfer basis.

The government appointed the World Bank’s International Finance Corp. to serve as transaction adviser for project preparation and tendering.

The Solomon Islands government plans to select a developer to design, finance, build, own, and operate the project on the Tina River on Guadalcanal in the Solomons. A detailed feasibility study funded by the European Investment Bank is being carried out by Entura, and completion was expected in December 2011.

Macedonia awards contract for dam and 5 MW Crn Kamen

A Macedonia utility has awarded a contract to Civil Engineering Institute Makedonia to provide geological investigation services for construction of Lukovo Pole Dam on the Kosovo border and construction of the 5 MW Crn Kamen plant.

AD Elektrani na Makedonija-Skopje (JSC Macedonian Power Plants-Skopje) recruited consultants in April 2011 to define geotechnical conditions for construction of the alignment and engineering structures of the dam, 20 km-long headrace canal, and small hydro plant.

The €545,544 (US$756,432) bid of Civil Engineering Institute was chosen in October 2011 over bids by a joint venture led by Karst d.o.o. and a joint venture of SEA Consulting S.r.l. (Geidata Engineering S.p.A. – INTERGEO Environmental Techology Ltd.).

Lukovo Pole is to be a 71 meter-tall rockfill dam, reservoir and intake canal to divert water from the Korab Mountains through the existing Mavrovo River cascade, resulting in additional generation at the 150 MW Vrutok, 19.2 MW Raven and 12.8 MW Vrben plants. The 5 MW Crn Kamen plant is to be built at the primary outlet of Lukovo Pole.

French utility advances work on Saint Julien Montdenis

SAEM SOREA of France plans to install a penstock for the proposed 2.864 MW Saint Julien Montdenis project on St. Julien Creek in Saint-Julien-Mont-Denis.

Work will proceed in four lots: earthworks, civil engineering and construction of intake areas; supply and installation of pressure pipe and penstock connecting water intakes to the powerhouse; powerhouse construction with integrated equipment including a crane; and supply and installation of electromechanical equipment including valves and turbines.

In other news, the city of Toulouse has named MJ2 Technologies SARL to supply electromechanical equipment to the 1 MW Cavaletade project, proposed for the Garonne River in Toulouse.

MJ2 of France received a contract valued at €1.36 million (US$1.84 million). It is to supply a turbine-generator, controls, oil and grease, manuals, operating instructions, maintenance and training.

Rehab, new development work planned for Azores

Utility Empresa de Electricidade e Gaz (EEG) plans to rehabilitate the 1.66 MW Alem Fazenda project and build the 1.1 MW Ribeira Grande project in the Portugal-owned Azores Islands.

Both projects are located on the island of Ilha das Flores in the mid-Atlantic.

Rehabilitation of Alem Fazenda is to involve canal repair and heightening of a section, supply of two replacement turbine-generators of 510 kW each and refurbishment of a third unit of 640 kW. Work also will include automation of the plant, which is expected to generate 5.28 GWh annually upon completion.

The Ribeira Grande project includes cosntruction of three dams on the Ferreiro River, Grande River, and a tributary, plus an intake on a second tributary on Flores Island. The work will involve construction of a powerhouse containing two 550 kW turbine-generators, other electromechanical and hydromechanical equipment, and automation. This project is expected to generate 5 GWh annually upon completion.

The total work is valued at €8.5 million (US$11.6 million).

Three firms to refurbish units at 4.5 MW Charmey

Swiss utility Gruyere Energie SA has named three companies to refurbish generating units at the 4.5 MW Charmey hydroelectric project on Switzerland’s Jogne River.

The utility produces nearly 12% of its electricity from Charmey, which was built in 1893 and relocated in 1957.

Grimsel Hydro, Kraftwerke Oberhasli AG of Switzerland received a contract worth CHF1.66 million (US$1.81 million) to refurbish the three turbines.

Gruyere Energie awarded a contract worth CHF953,550 ($1 million) to Gebruder Meier of Switzerland to refurbish the three generators. And ABB of Switzerland received a contract worth CHF853,200 ($930,062) for control group, automation and pipe work.

Sri Lanka to implement micro-hydro project program

Sri Lanka’s Sustainable Energy Authority (SEA) plans to hire a consultant to help implement a program to develop or rehabilitate micro-hydro projects on Sri Lanka’s tea and rubber estates.

With funding from the Asian Development Bank, Sri Lanka seeks to develop renewable energy sources for transmission grid interconnection. SEA said about 250 sites of up to 250 kW each have been found on tea and rubber estates but are considered too small for commercial development under its existing renewable energy initiative.

To facilitate this work, SEA asked ADB to help it establish a credit line to estate companies and other developers. The plants would be grid-connected, with surplus energy to be “banked” by the Ceylon Electricity Board.

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