U.K., Sweden firms are low bidders for Iceland plant rehab

Iceland utility Landsvirkjun found firms from the United Kingdom and Sweden to be low bidders in separate tenders for generator refurbishment and for excitation equipment at the 27-MW Steingrimsstod hydroelectric project. (HNN 6/2/06)

Landsvirkjun received five bids for design, manufacture, testing, installation supervision, and commissioning of stator core, stator windings, and field windings for refurbishment of one 16.5-megavolt-ampere generator. The engineer’s estimate for the work was 70.7 million kronur (US$1.007 million).

Bids by lowest to highest price were:
o Cegelec, United Kingdom, 516,304 pounds (US$981,007);
o GE Energy, Spain, 778,125 euros (US$992,126);
o Alstom Hydro, Sweden, 8.019 million kronor (US$1.097 million);
o VG Power, Sweden, 9.882 million kronor (US$1.352 million);
o Koncar, Croatia, 1.119 million euros (US$1.427 million).

Landsvirkjun received six bids for design, manufacture, testing, installation supervision, and commissioning of excitation equipment for two 16.5-MVa generators. The engineer’s estimate was 13.7 million kronur (US$195,212).

Bids by lowest to highest price were:
o VG Power, Sweden, alternative bid, 1.552 million kronor (US$212,476);
o VG Power, Sweden, primary bid, 2.114 million kronor (US$289,409);
o VA Tech Hydro, Germany, 236,851 euros (US$301,990);
o Alstom Hydro, Sweden, 2.690 million kronor (US$368,318);
o Koncar, Croatia, 399,712 euros (US$509,641);
o Cegelec, United Kingdom, 354,451 pounds (US$673,477).

Landsvirkjun did not say when it would name winning bidders.

Steingrimsstod began operation in 1959 on the Upper Sog River, where it drains Lake Thingvallavatn into Lake Ulfljotsvatn. It has two turbine-generators of 13.5-MW each.

Powerhouse work progresses at 690-MW Karahnjukar

Landsvirkjun also reported powerhouse work progressing at the new 690-MW Karahnjukar hydroelectric project in Fljotsdalur Valley of eastern Iceland. (HNN 5/31/06) It said concrete work inside Valbjofsstadarfjall Mountain is nearly complete, including concrete for installation of six turbines.

The utility said VA Tech Hydro is responsible for turbine installation and has made great progress, with turbine No.1 nearing completion. The remaining five units are in various stages of installation, it said. It added that four of six transformers are in place in the transformer hall, power cables from the transformers to the switchgear house are in place, and connection work is being carried out.

Tunnel-boring machine (TBM) No. 1 is being dismantled inside the headrace tunnel where it broke through the last rock in its path on September 9, 15 kilometers and two years after it began. TBMs 2 and 3 continued to drill toward each other, separated by 1,700 meters.

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