Page 59: of Maritime Reporter Magazine (October 2001)

Environmental Focus

Statoil Ships Run on Gas... Liquefied Natural Gas That Is

Norway's Statoil has called upon ship- builder Kleven Verft to construct a pair of309-ft. (94.3-m) supply ships that will run on LNG. The vessels, which are scheduled for completion during 2003, and operated by Statoil, will be con- tracted from Eidesvik and Mokster Ship- ping. According to Knut Borland, Sta- toil's vice president for Environment, the

LNG power concept is expected to cut the vessels' nitrogen oxide (NOx) emis- sions by 85 percent; annual emissions are expected to be lowered by 420 tons.

By Regina P. Ciardiello, senior editor

Why would a company knowingly add $6 million to the construction price of a new vessel, and more than $1 million per year in operating costs? The answer is a multi-faceted one, but basically it comes down to environmental responsi- bility. Known as the first operator on the

Norwegian continental shelf to feature

LNG powered propulsion on its vessels,

Statoil said that a driving force behind its decision to go with LNG power was two-fold — the company wanted to employ a pair of vessels that would be environmentally sensitive — while building upon new technology. While the vessels are more expensive to build and operate, they also tremendously reduce emissions, a savings that can be distributed into the company's overall operations. According to Barland, the

Norwegian government has allowed Sta- toil to credit the NOx reduction against land-based entities. "Reductions achieved in one place, can be used in other places," Barland said. He's refer- ring to myriad of projects that Statoil is currently involved in, which includes two 400 MW gas-fired stations located in Kaarstoe and Kollsnes. The plants, which are part of a deal that involves

Statoil, Norsk Hydro and Statkraft, are an issue with the Norwegian Govern- ment, according to Barland, because of their carbon dioxide C02 emissions. Per the government, refineries must hold

NOx emissions down to five parts per million (ppm), which according to Bar- land, is an expensive task. The reasoning behind this, he adds, is to curb the acid rain problem that is prevalent on the

Norwegian continental shelf.

So instead of taking the conventional route, Statoil approached the Norwegian

Government with its idea for the LNG- powered vessels, and upon its approval, the innovation/creative process was begun. The task of bringing the innova- tive vessels to fruition has involved not only Statoil, but Eidesvik, who is char- tering the vessels, as well as Kleven

Verft, the Norwegian shipyard that has been designated as the builder.

So far, according to Eidesvik's admin- istration director, Nils Himle, the pro- duction process is one of trial and error. "One of the challenges of this project is making the rules as you go along,"

Himle said. "Since this (the construction of LNG-powered ships) has never been done before, there are no guidelines that have already been established." Himle added that the company, along with both the Norwegian Government and Det

Norske Veritas, is working to formulate a set of guidelines in hopes that this pro- ject is a blueprint for future LNG-pow- ered vessel projects.

The 4,400-gt vessels will have an overall length of 311 ft. (94.9 m), a breadth of 67 ft. (20.4 m) and design draft of 25 ft. (7.5 m), and will operate at a service speed of 16 knots. According to Himle, they will be larger than most supply vessels as more capacity than usual will be taken up by the LNG tanks, which when backed up by diesel fuel, will hold 1,000 cu. m. Water ballast capacity is 2,000 cu. m. and deck cargo capacity checks in at 2,500 tons.

Upon their scheduled 2003 comple- tion, the vessels, which will operate from the Coast Center Base near

Bergen, will supply oil and gas installa- tions in the Tampen area of the North

Sea.

Main Particulars

Flag Norway

Class DNV

Vessel Name (s) Yard No. 301 and 303

Owner/operator Eidesvik

Contract date June 2001

Length, (o.a.) 311 ft. (94.9 m)

Length, (b.p.) 268 ft. (81.6 m)

Breadth, (molded) ... 67 ft. (20.4 m)

GT Approximately 4,400

DWT Approximately 6,300

Draft, (design) 25 ft. (7.5 m)

Draft, (scantling) ... 26 ft. (8 m)

Speed, service 16 knots

Complement 20

Deck cargo capacity . .. .Approximately 2,300 tons

Bunker 1,000 cu.m.

Water ballast 2,000 cu m.

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