Tag Archives: Utilities

Scottish tidal power potential less than estimated, still Viable – new Study via Reuters

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* Pentland Firth could generate maximum of 1.9 GW of power* 1 GW seen more realistic, vs prior estimates of 10-20 GW

LONDON, July 10 (Reuters) – Proposed tidal turbines in Pentland Firth, which separates…

Duane Tilden‘s insight:

>New research led by the University of Oxford suggests, however, that the maximum that Pentland Firth could produce would be 1.9 gigawatts, with 1 GW a more realistic target.

That is far below previous estimates of 10 GW to as much as 20 GW. […]  The study was less optimistic about the firth’s potential because it took into account factors such as how many turbines it would be feasible to build, how they would interact with each other and variations from tidal cycles.

“Our study provides the first robust data about how much energy it would be feasible to extract,” said Thomas Adcock, lead author of the report and fellow in engineering science at Oxford University.

Pentland Firth could still generate power equivalent to almost half of Scotland’s annual electricity consumption, which amounted to 37 terrawatt hours in 2011, Adcock added. […]<

See on www.reuters.com

Is Scotland’s Pentland Firth the World’s Best Site for Tidal Power

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Tidal streams could bring large amounts of energy within a decade if government support is available, study says

Duane Tilden‘s insight:

>The world’s best site for tidal power, the Pentland firth, could provide half of Scotland’s electricity, according to the first robust estimate of its potential. The tidal streams, which surge through the firth at five metres per second, could bring large amounts of renewable energy in reach within a decade if enough government support is available, said the Oxford University engineer behind the new study.

From Anglesey to the Severn estuary to Portland Bill, the UK has the greatest potential for generating predictable, clean energy from tidal channels. Turbines are already operating at Strangford Loch in Northern Ireland and prototypes are being tested in the Menai Straits off Anglesey.

But the Pentland firth is the greatest resource. “It is almost certainly the best site for tidal stream power in the world,” said Thomas Adcock, at Oxford University, who led the new work published in the journal Proceedings of the Royal Society A. The water flow is rapid there because the tide shifting from the Atlantic into the North Sea is forced through a narrow eight-mile channel.<

See on www.guardian.co.uk

The Amazing Energy Race

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The United States is falling behind. To catch up, we need to reorder our priorities, find cleaner and smarter fuels and develop new technologies.

Duane Tilden‘s insight:

>“In reducing coal’s historic dominance, the president is formalizing a market trend that was already taking shape,” remarked Andy Karsner, who was an assistant secretary of energy in the last Bush administration. His bigger message, though, was “no matter where you find yourself on the political spectrum, it’s useful for the nation to discuss, debate and consider a strategy for climate change. The consequences of inaction are potentially greater than all the other noise out there.”<

See on www.nytimes.com

Changes in the Electrical and Micro Grid

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Microgrids are becoming a worldwide phenomenon. Currently an estimated $4.5 billion market in the US alone with 1,459 MW online and 1,122 MW in planning or development, the microgrid market is expected to continue to grow as the world demands ever more electricity usage and the grid struggles to keep up. The truth is that the traditional grid was not built to cope with the extraordinary level and fluctuations of present-day demand, and microgrids present the perfect solution. The question (to the utilities) is whether we are ready to embrace the change and adapt.

See on theenergycollective.com

Solar Energy and Community Projects

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What does it take to cook up a community solar project? A dash of crowdfunding, a pinch of grassroots outreach, and a generous helping of persistence. That’s the word from San Francisco nonprofits RE-volv and Everybody Solar.

See on theenergycollective.com

Research and Markets: Global and Chinese Power Energy Storage Battery – 2013 Report – WSJ.com

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DUBLIN–(BUSINESS WIRE)–June 28, 2013–

Research and Markets (http://www.researchandmarkets.com/research/nblmtd/2013_deep) has announced the addition of the “2013 Deep Research Report on Global

Duane Tilden‘s insight:

>The report begins by defining the industry giving details on classification, application, industry chain, structure industry overview, international market analysis, China domestic market, Global market analysis, macroeconomic environment, economic situation analysis and influence, industry policy and plan, product specification, manufacturing process, and product cost structure.

The report then gives statistics on 21 key manufacturers including information on capacity, production, cost, price, profit, production value gross margin, products, customers, application, capacity, market position, company contact information and other company related information. […]

In the end, this report gives a SWOT analysis and discusses a 400MWh/year investment feasibility analysis project and investment return analysis and also gives related research conclusions and a development trend analysis of Chinese and Global Power Energy Storage Battery industry.<

See on online.wsj.com

Water kit to be added to JEA home evaluation program – Jacksonville Public Libraries

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The popularity of JEA’s Home Energy Evaluation Kit Backpack program has spurred the utility to add a water-use evaluation kit to the tools offered to homeowners to help them reduce their utility bills

Duane Tilden‘s insight:

>The kits have been checked out 2,143 times since the pilot program started in 2010.  The backpacks are available at all Jacksonville public libraries and the Bartram Trail Library in St. Johns County, because it is in the JEA service area.

“Prior to the backpack program, customers would have to schedule an appointment with a technician who would visit the home, but the backpack allows them to get started with conservation on their own, … The hardest part about developing the kit was the instruction manual, … “We wanted to make sure it was functional, yet understandable,” said Reed.

Kits can be checked out for three weeks and are available on a first-come first-served basis, unless customers attend a JEA workshop.<

See on ht.ly

Utilities fear what they cannot control with community solar – PV-Tech

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Utilities love solar. Or at least they love utility-scale solar, i.e. installations they can own or control through power purchase agreements.

Duane Tilden‘s insight:

>”People like solar and the utility can play a really useful role in bringing solar into a community. But you do have to deal with some issues in terms of how to take advantage of the tax incentives. That can really change the cost of the programme. To take advantage of the tax code, the system has to be located on your property.

[…]

“We’ve seen some prices as low as 5c-6c per kWh once the tax depreciation and tax advantages have been taken by an entity that has that tax appetite. For those who are subscribing this is a resource for the future and many years out that would be a hedge.”

Ultimately, one of the biggest appeals of community solar is the value proposition and that does not always come down to the cheapest rate: communities want power sourced as locally as possible. Green pricing failed to gain mass appeal 10 years ago because consumers were being sold ‘clean power’ generated by wind two states away.<

See on www.pv-tech.org

China Invests Billions in International Renewable Energy Projects

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Waste Management’s Hidden Value Driver Doesn’t Stink – DailyFinance

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One thing has plagued mankind from the very first man caves tens of thousands of years ago to the streets of modern day cities: waste. Where do you

Duane Tilden‘s insight:

>Waste Management has quietly become a leader in waste to energy (WtE) and landfill gas to energy (LGTE) technologies. […] The company, using various sources of waste as feedstock, generates up to 550 MW of renewable energy each year – enough to power almost 1.2 million homes. Internal goals call for increasing that figure to 915 MW (2 million homes) by the end of the decade.

Waste to energy

Waste Management’s waste to energy services ignite solid and municipal waste to produce syngas, which is burned to spin turbines and, alas, create renewable electricity. Wheelabrator, the company’s subsidiary, operates 17 WtE facilities in the United States that can convert over 8 million tons of waste into 333 MW each year. That is second only to Covanta, which owns 44 facilities that convert over 20 million tons of waste into 9 million MWh of electricity each year – equivalent to 8% of all renewable energy in the United States.<

See on www.dailyfinance.com