Business – Undersea cable to transport electricity

DFN: Castle & Cook is involved here. Wind farms on Lanai, cable will transport electricity underseas to Oahu.

Planning begins for Hawaii undersea cable system
Project could reduce state’s oil use, but at a cost of up to $3B
By Sean Hao
Advertiser Staff Writer
http://www.honoluluadvertiser.com/article/20091222/NEWS01/912220361/Planning+begins+for+Hawaii+undersea+cable+system

While a plan to build a $5.4 billion commuter rail line on O’ahu has generated an intense public debate, another major project in Hawai’i that could have a total price tag of up to $3 billion has avoided similar attention.

The state has started the planning necessary for laying a network of undersea cables to transfer wind-generated electricity from Lana’i and Moloka’i to O’ahu. The generators could provide up to one-third of Honolulu’s power needs and would play a key role in reducing the state’s dependence on fossil fuels.

The cables could cost up to $1 billion, and two envisioned wind farms could cost private developers up to $1 billion each.

Much of the money will ultimately come from taxpayers and utility customers. However, the exact cost of the cable project is still unclear, as is who will build it and how it will be financed.

The state hopes to answer those questions during the next year by spending $5 million in federal stimulus money on consultants and studies.

Ted Liu, director of the state Department of Business, Economic Development and Tourism, acknowledged last week that there’s no guarantee the investment will pay off.

"End of the day, we can’t guarantee that the project will actually get done," he said during a legislative briefing on how agencies are spending stimulus money. "A lot of it depends on market conditions, but in our discussions with developers there’s been a lot of interest."

A recently released $1.5 million report conducted for DBEDT by the University of Hawai’i concluded that the undersea power cable project is feasible, despite environmental and engineering challenges.

Now the state plans to spend $4.94 million in federal stimulus money on consulting contracts and an environmental impact study. The state is rushing to spend the money before a federal deadline of April 2012 for using stimulus funds.

subsidized studies

The money for cable studies represents about 20 percent of federal Department of Energy stimulus funds awarded to Hawai’i to pay for alternative energy and energy-efficiency projects. Much of that money is being spent on projects that are likely to have a clear and immediate payoff such as building retrofits and appliance rebates.

"What we are doing as government is making sure we’re doing the front-end, up-front work, which usually the private sector doesn’t do. This will facilitate the private capital coming in," Liu said.

Development of the cable hinges on construction of two privately developed 200-megawatt wind farm projects expected to cost $500 million to $1 billion each, as well as power grid upgrades by Hawaiian Electric Co. The cable itself is preliminarily estimated to cost $800 million to $1 billion.

The goal is to have the cable installed and the wind farms running by 2014, according to DBEDT.

The cable is one component of a Lingle administration plan calling for 70 percent of the state’s energy to come from renewable resources by 2030.

Undersea power cable projects already connect New Jersey to Long Island and Long Island to Connecticut, said Josh Strickler, facilitator of DBEDT’s renewable energy programs. Another undersea cable project is under way in San Francisco Bay. What makes Hawai’i's project unique is how it will transmit wind-generated power to O’ahu via an open-ocean sea cable, he said.

The cables would transport energy from a planned 200-megawatt wind farm proposed for Moloka’i by First Wind Holdings Inc. and a similarly sized project on Lana’i by Castle & Cooke Inc.

Whether consumers end up paying more for renewable energy transmitted via the planned cable likely will depend on a variety of factors including the cost of oil, the cable’s cost and the price of wind-generated power, DBEDT said.

Costs still unclear

State officials hope to have a better idea of what the cable will cost after the environmental impact studies begin and a private developer is hired next summer.

Hawaiian Electric spokes-man Peter Rosegg said the utility is working closely with the state on project financing issues.

"The cost will ultimately be paid for by some combination of utility customer and taxpayer funds," Rosegg said in an e-mail. "The state will seek additional federal funding and/or long-term loan guarantees to keep the total cost under control."

The cost of the project should be weighed against the cost of importing fossil fuels to satisfy state electricity needs, Rosegg added. Hawai’i sends about 10 percent of its gross state product out of the Islands each year to buy that fuel, he said.

A recent study by the UH School of Ocean and Earth Science and Technology relied on ocean mapping and geological studies to recommend the four potential cable routes. The routes included a Lana’i to Pearl Harbor route; a cable connecting Moloka’i, Lana’i and Maui; an O’ahu, Moloka’i and Lana’i cable; and a Kane’ohe-to-Moloka’i line.

"Right now we think this is the right idea, and we’re moving forward with it, but we’re still doing a lot of analysis," said DBEDT’s Strickler. "We have some of the best wind in the world … To just ignore that resource would be foolish."

Telecos – Should they share a 4G network?

DFN: Funny thing about ‘speed’, once you get used to it, it seems slow. 3G devices allow us to access email / Internet / send & receive messages any place, any time. But now, after a month of using a new iPhone, its seems incredibly slow. Unlikely the bigger telcos will share new networks, more likely they’ll build and sell time over the network to smaller carriers in bulk; portends well for companies like NextG Networks, which augment cell phone company networks. Don’t see why there’s a need for a new network, why can’t the old network (3G) be used? Looking forward to this faster network, unwilling to pay a premium to use.

Should telcos share a 4G mobile network?

By TOM PULLAR-STRECKER – The Dominion Post
Last updated 05:00 21/12/2009
http://www.stuff.co.nz/business/industries/3179719/Should-telcos-share-a-4G-mobile-network

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Mobile phone companies and regulators face a stark choice in the next few years: double the number of cellsites to 5000, allow existing cellsites to be built higher, or take the radical step of sanctioning a single mobile access network that would be shared by all.

The Telecommunications Industry Group (TIG), whose members include Vodafone and Telecom, told the Treasury that 2500 cellsites would need to be built in a few years’ time at a cost of $625 million to support 4G mobile networks, unless height restrictions on existing cellsites were loosened.

The alternative was for mobile network operators to club together to build a single 4G access network using shared radio spectrum. 2degrees chief executive Eric Hertz says that idea should be seriously considered and Telecom is open to the idea in principle. Vodafone is non-committal.

Vodafone, Telecom and 2degrees are expected to start making the switch to 4G mobile technology LTE (Long Term Evolution) in 2013 at a cost of billions of dollars, using radio spectrum in the 700MHz band that will be freed up by the closure of analogue television transmissions.

The TIG says that because of the scale of the construction, telcos might need to start buying suitable sites to erect new cellsites as early as next year.

Delivering 4G nationwide would require significantly more cellsites – potentially between 50 per cent and 100 per cent more – than today’s GSM and 3G networks. But doubling the number of cellsites to 5000 risked a public backlash.

It told the Treasury, which is consulting generally on national infrastructure issues, that one option might be to relax height restrictions on existing cellsites, which would make it easier for operators to share towers.

Because of planning regulations, most cellsites in New Zealand are 15 metres to 20m high, about 10m shorter than those in Europe. The result had been "an unnecessary proliferation of masts".

Antennas need to be vertically separated by a few metres to avoid interference and lower antennas provide limited coverage, making it unattractive for network operators to share short towers. If higher cellsites (25m to 30m) were permitted, LTE networks could be built without significant further site acquisition, it says.

TIG chief executive Rob Spray says no-one wants another 2500 cellsites.

He says a single shared 4G network would reduce the need for more or higher towers. "Maybe we don’t need lots of different pieces of spectrum, maybe we need one big piece that everyone shares."

Telecom spokesman Mark Watts says sharing of spectrum and co-location are "all issues to be grappled with, but not right now in any detail".

"Sharing has appeal from a cost viewpoint as the industry may struggle at some point to fund widespread LTE deployment at a price to customers that recoups the investment and which customers are happy with."

Vodafone spokesman Paul Brislen says the company is keen to share towers with other operators, but a common mobile access network using shared spectrum and antennas could have wider ramifications.

"I can well imagine there would be anti-competitive concerns."

Mr Hertz says a shared network built by a joint venture might make sense. "If you are competing at the retail level it is often hard to have those discussions, but the reality is as we look at 4G and the difficulty around towers there are a lot of incentives to figure out a way to make it happen.

"The network is not something that you necessarily have to differentiate. You can differentiate based on your services and devices."

Vodafone, Telecom and 2degrees invested more than $1 billion in mobile networks last year alone as they sought to leap-frog one another. The competitive dynamic driving that investment could be reduced if infrastructure was shared.

Mr Spray says once telcos have moved to LTE and are on the same technology platform using similar frequency spectrum, it is likely the market will settle down.

"You will see the builds happen around 2013 and I think you will see those networks in place for a very long time."

LTE will deliver peak download speeds of 100 megabits per second, five times the top performance of Telecom and Vodafone’s existing networks.

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