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Chakachamna hydro seeking $5M TDX riding favorable Integrated Resource Plan recommendation and pending FERC permit into legislative session, asking for money to help fund fieldwork for studies this summer Eric Lidji For Petroleum News
The profile of Chakachamna Lake hydropower, a project proposed for the west side of Cook Inlet in Southcentral Alaska, has risen a lot in the last two months.
In early December, a study of Railbelt energy needs placed Chakachamna ahead of a much larger and more widely discussed hydropower project on the Susitna River.
The Federal Energy Regulatory Commission is currently deciding whether to extend the permit that lets TDX Power, the sponsor of the Chakachamna project, study the project.
Now, TDX hopes those developments will bolster its case before the Alaska Legislature. The company wants $5 million in state funds to help pay for fieldwork this summer.
Lake Chakachamna sits near the southern end of the Alaska Range, about 80 miles west of Anchorage across Cook Inlet. Updating a concept from the 1980s (based on site work conducted by the U.S. Bureau of Reclamation in the 1960s), TDX would use the lake’s elevation to generate power by sending water down a 10-mile tunnel from the eastern end of the lake to an underground power plant on the north side of McArthur River.
The power would be fed into the Railbelt grid through a new transmission line.
TDX, a subsidiary of the Tanadgusix Native Corp., estimates the project could produce an average of 1.6 gigawatt hours of energy from an installed capacity of 330 megawatts.
TDX estimates the project would cost $1.6 billion in 2008 dollars with an additional $58 million in transmission costs and around $10 million in annual operating expenses.
Good, but not yet certain Although based on a decades-old idea, Chakachamna often found itself overshadowed by a much larger and much more heavily debated hydropower project on the Susitna River.
That balance shifted slightly in December, when the engineering firm Black & Veatch Corp. released a draft of its Integrated Resource Plan. The plan gives some direction to policy makers by taking a comprehensive look at the future energy needs in the Railbelt and by examining power projects currently being proposed or developed.
The study found that Susitna would provide more power than the Railbelt needs, and that even a scaled back version of the project would not be as cost-effective as Chakachamna.
The report even recommended that the state help pay for Chakachamna by offering large loans that would be built into power costs and paid back over the life of the project.
But Chakachamna isn’t a sure thing, yet.
“Chakachamna could fail to develop because of licensing or technical issues,” the report noted, adding that if costs increased to the point where Chakachamna power became equal to Susitna power, it would no longer be the more preferable of the two projects.
As a result, the report recommended that Chakachamna, Susitna and other hydro projects all advance for now until environmental, geotechnical and cost uncertainties get resolved.
49 studies still remain TDX is close to resolving one of those licensing issues: an extension from FERC.
TDX got a preliminary permit from FERC in late 2006, giving it exclusive rights to study a hydropower project at Lake Chakachamna. The permit only lasted for three years, though, and so this past November, TDX applied for another permit to keep studying the project.
The comment period on that application ends on Feb. 15, meaning TDX should know soon whether or not it’s cleared to continue looking into the feasibility of the project.
Although TDX told regulators it has spent more than $2.5 million on the project so far, there is still a lot of work to do. In filings, TDX listed 49 studies — most related to fish, animals and engineering — that it still needs to complete during the studying phase.
TDX hopes to conduct 11 of those this year, according to project manager Eric Yould.
Asking for money, and soon To do that, TDX is asking the state for $5 million this year.
The request is timely, but also competing for attention.
Lawmakers convened in regular session in Juneau right now not only have the draft Integrated Resource Plan on their desks, but will also be considering another round of Renewable Energy Fund applications. Humming along in the background is a leftover goal from the administration of former Gov. Sarah Palin to have at least half of the state’s electricity produced from renewable sources by 2025.
Yould said the draft Integrated Resource Plan bolsters TDX’s case.
“We were always confident in ourselves,” Yould said. “The Legislature and the administration, they needed their own individual assessment of the project and that’s essentially what the IRP did. And so we’re seeing much more support for it.”
That support may not only help TDX get the money it wants in the capital budget, but also help get some of it sooner rather than later. Yould said the company ideally wants $2 million of its requested appropriation to come in the supplemental budget, allowing TDX to have cash in hand by May so that it can pay for fisheries studies this summer.
“That’s when the fish start to run,” Yould said. “If we miss the fish, we basically miss the summer.”
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