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Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007
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Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

Dec 16, 2015

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Page 1: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

Lunar Energy Copyright

DRAFT FOR DISCUSSION

Alaska PresentationJanuary 2007

Page 2: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

Lunar Energy Copyright

The Rotech Tidal Turbine – Design DevelopmentInitial Concept

Designed with O&M foremost in mind

Removal of complex components and design

– No mechanical Gearboxes, yawing or variable pitch mechanisms

System bi-directional and duct straightens flow allowing for off-turbine axis flows

Gravity Base allows quick installation and little if any seabed preparation

No gearbox allows generation compartment to be hermetically sealed removing risk of leaks

Modular section (cassette) containing all working parts is easily removable and taken to shore for service

Page 3: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

Lunar Energy Copyright

Atkins developed initial concept using Oil & Gas Design codes

Full stress and fatigue analysis

Base development including 3-point to contact to remove torsion.

Cheap Ballast (pre-installed) used to make up on-bottom weight needed to prevent sliding

Note the position of the modular ‘cassette’ (the magenta coloured centre unit)

The Rotech Tidal Turbine – Design DevelopmentAtkins (Mk I design)

Page 4: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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Further development to make duct load bearing to remove tubular support frame

Over 20% costs reduction over initial design - steel requirement reduced and fabrication significantly cheaper

Base still gravity concept (not 3 mono-piles!)

Eloquent design allowing for significant local fabrication and handling

The Rotech Tidal Turbine – Design DevelopmentAtkins/Rotech MkII Design

Page 5: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

Lunar Energy Copyright

Sir Robert McAlpine commissioned to develop commercial ideas and processes from first principles

Design remarkably similar to Atkins prototype design concept

The Rotech Tidal Turbine – Design DevelopmentSir Robert McAlpine Commercial (All Concrete) Design

Page 6: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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The Rotech Tidal Turbine – Modular Cassette and Generating Pod

Modular unit (cassette) containing turbines, all hydraulics and generating equipment

removed quickly and taken to shore for service

replaced by another unit to minimise down time

Pod seals to prevent leaks and held at atmospheric pressure and temperature to enable components to operate in ‘design’ conditions

Page 7: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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Hydraulic Circuit Assembly September - December 2006

Page 8: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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EMEC TIDAL TEST SITE

Lunar Energy Test Berth

Depth: 45 m (150 feet)

Flow Peak 7.2 knots (3.7 m/s)

Page 9: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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Benefits of using the RTT Technology Environmentally sensitive Invisible from above the surface No impediment to shipping or other social activity No shoreline equipment required (except connection point) Environmental credentials proven at EMEC 07/08

EMEC has significant environmental considerations: Seal sanctuary and whale migration route

RTT has unique opportunity to mitigate issues through screening intake if necessary

RTT is below level of any surface ice and given the minimum 4 year cycle for maintenance, no service required during winter.

Page 10: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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RTT and ALASKA

Current RTT design is ideally suited for the Alaskan operating environment

“Lunar Energy RTT - Only currently viable deepwater technology design”

Page 11: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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Commercial Development

United Kingdom

2007 Sea trials of the EMEC 1MW unit

2008/9 Commissioning and fabrication of the first Commercial Units

2009/10 First demonstration field

2011/12 First development of first commercial field

International

2006 June 2006, Developer in New Zealand submitted resource consents application nominating the Lunar Energy RTT device for first commercial tidal stream project (200+MW).

2007 Negotiations ongoing for initial demonstration projects in Canada and in the US

2009 Installation and commissioning of projects in Canada; US; and New Zealand

2010/11 First developments of commercial fields outside UK

Page 12: Lunar Energy Copyright DRAFT FOR DISCUSSION Alaska Presentation January 2007.

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DRAFT FOR DISCUSSION

www.lunarenergy.co.uk