NEWSLETTER National Activities
October 2008 ISSUE 11
C on t e n t s SEAGEN - THE WORLD’S FIRST
National Activities - SEAGEN - Germany - 1 COMMERCIAL-SCALE TIDAL CURRENT TURBINE
National Activities - Bay of Fundy - Canada - 2 by Peter Fraenkel, Technical Director, Marine Current Turbines Ltd.
National Activities - Catching the Wave - N.Zealand - 3
The world's first commercial scale tidal current turbine, a 1.2MW twin rotor system
Agenda Events on Ocean Energy -4
known as SeaGen, was installed in Strangford Narrows, Northern Ireland during May
Update on the Activities From the Work Program 2008. This system uses the energy of the tides that daily flood in and out of Strangford
on Integration - Canada - 4 Lough, producing enough electricity to meet the average needs of about 1000
Strangford Narrows is a scenic, and extremely energetic waterway linking the inland
E d i t or i al seawater lake of Strangford Lough to the sea, located some 25 miles SE of Belfast.
Powerful currents reaching nearly 10 knots (over 4.5m/s) sweep in and out of the
Welcome to the IEA-OES Newsletter.
600m wide and 30m deep channel.
Ocean energy conversion continues to attract the
interest of new players developing wave and tidal The SeaGen tidal turbine was designed and developed by Marine Current Turbines
current devices systems. Recently, two offshore Ltd., a company which is the "first mover" and a world-leader in developing this
commercial-scale systems have been deployed. One is a technology for large-scale generation of clean electricity from the seas.
tidal current turbine and the other is wave energy Marine Current Turbines, based in Bristol, England, has a significant track-record,
converter. having originally developed the world's first tidal turbine, a relatively small 10kW
proof-of-concept device tested successfully in Scottish waters in 1994. Following on
The SeaGen marine current turbine rated 1.2 MW is from this they developed a 300kW experimental test system, called "Seaflow" which
described in the first article. The other commercial-
was successfully installed off Lynmouth in Devon in 2003. This was another world
scale project is Pelamis, a wave energy converter: three
first, being both the first large scale and the first offshore tidal turbine.
machines with total rated capacity 2.25 MW were
As a result of successful testing of Seaflow, Marine Current Turbines has developed
deployed off Portugal in late September.
SeaGen, which is over four times more powerful and intended for deployment world-
The other two articles in this issue also refer to tidal wide, after the prototype system has been tested and refined in Strangford Narrows.
current and wave programmes. In fact the next project, the first 10MW Seagen commercial array is already under
In Canada, plans are underway to harness the tidal development and due for completion in 2009-10. Similar projects are planned for
energy in Bay of Fundy where the second largest tidal other parts of the world.
power barrage in the world with 18MW capacity has Each of SeaGen systems will in future have a rated power of up to 1.5MW. Twin axial
been operating since 1984. The new project will make flow rotors with full-span pitch control are mounted either side of a support column,
use of the in-stream turbine technology which does not and can be raised above sea-level for maintenance. The rotor blades can be pitched
cause strong environment impact into the bay unlike a
through 180 degrees to enable efficient operation on both the ebb and the flood tides.
dam impeding the flow of sea water into and out of the
Many such features of the SeaGen technology have been patented world-wide.
The characteristics of the marine current energy resource makes this technology a
New Zealand is also one of the countries with a very potential world-beater since it has real prospects for generating power at a commercially
good ocean energy resource. The activities and plans in competitive cost within the next few years and moreover of doing it eventually on a
this country for wave and tidal energy conversion grand scale with minimal environmental impact. The energy they deliver will be as
described in this newsletter demonstrate the accurately predictable as the movements of the tides, and electricity delivered to a
commitment of companies supported by government to timetable in this way is more valuable than randomly generated electricity.
enter into the ocean energy business. Tidal turbines such as SeaGen are expected to have minimal environmental impact.
An intensive monitoring program has been initiated to ensure that the wildlife of
This increasing interest and commitment shown by
Strangford Lough, including seals, sea otters, and porpoises will not be damaged in
companies jointly with research institutions led various
any way. This development has been funded primarily by Marine Current Turbines
countries to setting up national programmes to support
Ltd's investors but the UK government has provided significant co-finance for R&D
this activity. This contributed to the decision made by
for Seaflow and for Seagen and the EC provided the initial finance for Seaflow. This
governments of four countries of joining in 2008 this
IEA R,D&D collaborative programme. programme involved significant international collaboration and a complex supply
After the signature of Spain and New Zealand at the chain, including for example a long term collaboration with German partners, with
beginning of the year, more recently also Italy and both the Seaflow and the Seagen project, partially funded by the German government.
Sweden became members bringing the number of
member-countries to 16. Meanwhile, others have been
invited and are participating at the IEA-OES Executive
Committee meetings as observers, having in view their
joining as full members.
Annex I Operating Agent
First IEA-OES ExCo Chair
BAY OF FUNDY must meet before installation. The province also committed to create legislation
covering benefits and other issues before considering commercial in-stream
TIDAL ENERGY CENTRE
tidal projects. More specifically, the province is:
by Mathew Lumley and John Cianfaglione, • providing up to $2 million to the OEER for tidal energy research
Nova Scotia Department of Energy • ensuring devices are removed if there are adverse environmental effects
• ensuring developers make agreements with fishermen to deal with any
potential adverse economic effects
Nova Scotia is getting ready to host North America's first demonstration
• encouraging local, aboriginal, provincial, federal and international
centre for new tidal in-stream energy conversion (TISEC) devices.
The Fundy Tidal Energy Centre will initially have three underwater berths
to connect TISEC devices to the power grid. The facility will allow
The province is also planning a number of future actions, such as:
developers to share costs, limit potential impacts, and test under similar
• creating a marine renewable energy demonstration program before
considering other in-stream projects
• creating marine renewable energy legislation, including potential socio-
Three candidates, representing technologies from Canada, Ireland, and
economic benefits, before considering commercial in-stream projects
USA are in negotiations for first occupancy in the proposed facility:
• creating new opportunities for tidal research.
• C l e a n C u r r e n t ( u s i n g a C l e a n C u r r e n t M a r k I I I Tu r b i n e )
• N o v a S c o t i a P o w e r I n c . ( u s i n g a n O p e n H y d r o Tu b i n e )
• Minas Basin Pulp and Power Co. Ltd. (also selected to construct G e t t i n g R e a d y f o r t h e Wa t e r
the facility infrastructure).
Data collection is underway, with a priority on finding an appropriate site for
the facility. Project partners have created:
R e c e n t R e p o r ts
• high resolution bathymetry (underwater topography) maps
• preliminary acoustic doppler current profiler (ADCP) data
Last year, Nova Scotia commissioned the Offshore Energy Environmental • 3D digital hydrodynamic model simulations of several potential in-stream
Research Association (OEER) to carry out a Strategic Environmental tidal sites in both Nova Scotia and New Brunswick sides of the Bay of
Assessment (SEA) on marine renewable energy development in the Bay Fundy (from the National Research Council's Canadian Hydraulics Center;
o f F u n d y. T h a t r e p o r t i s n o w a v a i l a b l e o n t h e O E E R w e b s i t e sponsored by Nova Scotia, New Brunswick and Natural Resources Canada)
www.bayoffundysea.ca. The website also provides information on OEER's • a 2D data acquisition application called Marine Kinetic Energy Explorer
SEA process - the first of its kind in North America. (MarKE-Fundy) that will allow developers to export energy data from the
hydrodynamic simulations into a GIS database. The GIS database will be
Nova Scotians want to understand the potential of this technology on used to generate maps which will overlap data sets such as topography,
a demonstration basis before considering any large-scale commercial subsurface type, habitat type and will ultimately streamline the site selection
development; demonstration will also allow for further technological process.
The Nova Scotia Department of Energy formally responded to the SEA As well, the Nova Scotia Department of Energy has become a member of the
in a report entitled Bay of Fundy Tidal Energy, available on the Canadian technical committee for the development of codes and standards
department's website www.gov.ns.ca/energy. for in-stream tidal energy. Natural Resources Canada will lead the international
electrotechnical commission technical committee on marine energy which will
Ta k i n g A c t i o n incorporate the Canadian standards work. The initial focus will be on developing
standards for device performance evaluation, tidal energy resource assessment,
Responding to the SEA, the province endorsed the proposed power quality assessment and environmental monitoring.
demonstration facility and outlined many of the conditions tidal projects
A Little Fundy History…
1607: a mill powered partially by tidal energy was built in Nova Scotia,
converting roughly 25 to 75 kilowatts of power.
1935: work began (but was later abandoned) on a proposed 350 MW
P a s s a m a q u o d d y B a y t i d a l p r o j e c t a l o n g t h e U S - C a n a d a b o r d e r.
1984: North America's first and only tidal generating station was built in Nova
Scotia. It produces 20 MW.
2010: Nova Scotia plans to have the Fundy tidal facility operational, North
America's first demonstration centre for new in-stream tidal devices.
The Guinness Book of World Records states the world's highest average tides
are in the Bay of Fundy, where the mean spring range in the Minas Basin is
14.5 m (47.6 feet). The highest tide on record in the Bay was 21.6 m (70.9
feet) in 1869.
Catching the Wave in New Zealand South Islands. Neptune Power is planning to deploy a UK-developed twin-turbine
shrouded device. The consent gives them 10 years to trial their device, although
by John Huckerby,
realistically they are unlikely to have the device there for more than 3 years. The device
Aotearoa Wave and Tidal Energy Association will be deployed late in 2009. The consent was granted as a non-notified consent,
& Director of Power Projects Limited allowing the developer to collect and monitor the device's performance and
The pace of activity in marine energy continues to pick up in New
Zealand. Since the beginning of 2008 a number of events indicate that Shortly afterwards the first hearings for consents for a second tidal current project were
marine energy is becoming a serious contender to contribute to New held. The Kaipara Harbour is northwest of Auckland and is the largest natural harbour
Zealand's future electricity supply. in the Southern Hemisphere. The developer, Crest Energy, plans to install 200 x 1 MW
tidal current turbines by 2022. However, on 5 September a company launched an appeal
against the recommendation that the consents should be granted. This appeal may
First Device Deployment
have to be heard by the Environment Court, which may mean a significant time delay
before it is clear whether the consents will be granted.
The United Nations Environment Programme holds "World Environment
Day " each year and, on 5 June this year, Wellington was host city. The
In the meantime a further application for consents for a third tidal current energy project
Wave Energy Technology - New Zealand (WET-NZ) R & D consortium
has been proposed. This is the first consent in the South Island and will involve the
used the opportunity to deploy its 2 kW experimental wave energy in
installation of 20 x 1 MW tidal current turbines in Tory Channel, a well-known tidal
Wellington Harbour. The converter has been deployed offshore a number
channel at the northeastern end of the South Island.
of times over the last year but was relocated to Wellington for some
specific mooring experiments. The converter is the result of 4 years'
research by a consortium including Industrial Research Limited (IRL), the M a p p i n g t h e Wa v e a n d Ti d a l / O c e a n C u r r e n t R e s o u r c e s
National Institute of Water and Atmospheric Research (NIWA) and Power
Projects Limited (PPL). Two New Zealand companies, Power Projects Limited and Metocean Solutions Limited,
have just completed a study of the potential development of marine energy in New
F u n d i n g f o r P r o j e c ts a n d R & D Zealand. The study has included new mapping of both the wave and open-ocean tidal
current resources. The maps are high-quality representations of the potential resources
and they have been used to assess likely sites for device deployments and the potential
The New Zealand Government continues to support marine energy.
contribution of wave and tidal current energy to electricity generation.
Published last year, the New Zealand Energy Strategy contains a number
of initiatives for marine energy and the first of these is yielding results.
The report was prepared for the Electricity Commission, Energy Efficiency and
The Minister of Energy opened the 2nd Annual conference of the
Conservation Authority and Greater Wellington Regional Council and is available at
Aotearoa Wave and Tidal Energy Association (AWATEA), by announcing
either: http://www.electricitycommission.govt.nz/pdfs/opdev/transmis/ renewables/
the award of funds from the first round of the Marine Energy Deployment
phase2/Marine-energy.pdf or http://www.eeca.govt.nz/renewable-energy/marine.html
Fund (MEDF). The fund is a capital grant programme to promote marine
energy by offering up to NZ$ 2 million per annum over the next four years
for the deployment of prototype marine energy devices. Crest Energy
will receive NZ$ 1.85 million to assist in the deployment of the first three
of its proposed 200 tidal current turbines in Kaipara Harbour. The grant
is conditional on Crest Energy securing external funding and the
In July, the New Zealand Government's R & D funding agency
announced that it was going to provide funding for three projects:
1. The WET-NZ R & D consortium project will receive six further years of
funding to continue development of its wave energy converter
2. NIWA secured funding for a three-year project to study the optimization
of tidal energy
3. NIWA also secured funding for a three-year project to review extreme
waves and storm surges. Although really a natural hazards project, there The WET-NZ device in Evans Bay,
Wellington, June 2008 (© PPL)
will be applicability to wave energy projects, particularly with respect to
wave device survival.
C o n s e n ts f o r M a r i n e P r o j e c ts
Granted and Heard
The first planning consent for a marine energy project was granted and Mean Spectral Wave Power
a second consent is being processed. for New Zealand
(kW/m of wave front)
In April this year, the first consent was granted for the deployment of a 1
MW prototype tidal current turbine in Cook Strait between the North and
Agenda Events on Ocean Energy IEA - OES Reports
U pd a t e o n t h e a c t i v i t i e s f r o m t h e w o r k p r o g r a m o n
FO RTH C O M I N G E V E N TS
WATTS 2 0 0 8 Wa v e & Tid a l Te c h n o lo g y Sy mp o s iu m
by Gouri Bhuyan
C a r d i ff , Wa l e s , U K , S e p t e m b e r 2 3 t h , 2 0 0 8
Powertech Labs, Canada
h t t p : / / w w w. h y d r o - i n t e r n a t i o n a l . c o m / e v e n ts / i d 3 7 2
Wa v e a n d Ti d a l Te c h n o l o g y S y m p o s i u m WAT T S . h t m l
A meeting among the participants of the Annex III on Integration of Ocean Energy
Plants into Electrical Grids will be held on 12 October 2008 in Brest to discuss and
O RE G 2 0 0 8 F a l l S y m p os iu m Bu ild in g t h e Bu s s in e s s
finalize the following two reports produced through the first work package of the
of O ce a n E n e r g y
Fairmont Chateau Whistler, BC, November 19th-20th, 2008
h t t p : / / w w w. o r e g . c a / 2 0 0 8 F a l l S y m p o s i u m . h t m l "Potential opportunities and differences associated with integration of ocean wave
and marine current energy plants, in comparison to wind energy"
I CO E 2 0 0 9
I n d i a n I n s t i t u t e o f Te c h n o l o g y M a d r a s , C h e n n a i , I n d i a , "Key features and identification of improvement needs to the existing relevant
1 s t - 5 t h F e b r u a r y, 2 0 0 9 interconnection guidelines for facilitating integration of ocean energy pilot projects"
h t t p : / / w w w. o e c . i i t m . a c . i n / i c o e 2 0 0 9 /
The first report presents characteristics of some wave and tidal current energy
W RE C 2 0 0 9 - Wo r l d R en e wa b le En e rg y Co n g re s s conversion processes and identifies areas where the ocean energy technologies
B a n g k o k , T h a i l a n d , 1 9 t h - 2 2 n d M a y, 2 0 0 9 bear unique advantages in comparison to wind energy technologies. The report
h t t p : / / w w w. t h a i - e x h i b i t i o n . c o m / w r e c 2 0 0 9 a s i a also discusses how the experience gained from the wind energy industry could be
used to mitigate any future grid integration challenges associated with a large-
O MAE 2 0 0 9 scale implementation of ocean energy technologies.
Honolulu, Hawaii, USA, 31st May - 5th June, 2009
h t t p : / / w w w. o o a e . o r g / o m a e / o m a e c o n f . h t m l The second report presents a review of some relevant interconnection guidelines
and presents key components of a generic guideline. Considering the early
E NE RG Y O C E A N 2 0 0 9 deployment stage of ocean energy technologies, the report discusses how a flexible
Rockport, Maine, USA, 16th - 18th June, 2009 interconnection guideline could be developed to accelerate the deployment.
Activities from the other two work packages of the Annex, involving modeling of
I S O P E 2 0 0 9 - T h e N i n et e e n t h In t e rn a t io n a l Of f s h o re generic conversion schemes and case studies illustrating electrical system modeling
and P o l a r E n g i n e e r i n g including generation of power from ocean energy resources are scheduled to be
O s a k a C o n f e r e n c e , J a pa n , 2 1 s t - 2 6 t h J u n e , 2 0 0 9 completed by end of 2009.
h t t p : / / w w w. i s o p e . o r g / c o n f e r e n c e s / c o n f e r e n c e s . h t m l
Executive Committee Operating Agents
E W TE C 2 0 0 9 - 8 t h E u r o p e a n Wa v e a n d
Chair ANNEX I: Review, exchange and
Ti dal En e r g y C o n f e r e n c e dissemination of information on OES
U p ps a l a , S w e d e n , 7 t h - 1 0 t h S e p t e m b e r, 2 0 0 9 (firstname.lastname@example.org) INETI / LNEG
Contact: Teresa Pontes
(email@example.com) ANNEX II: Development of recommended
practices for testing and evaluating OES
RE LAT E D L I N K S John Huckerby Ramboll
(firstname.lastname@example.org) Contact: Kim Nielsen (email@example.com)
I nter na t i o n a l E n e r g y A g e n c y
Information on the currently active IEA Implementing Secretary ANNEX III: Integration of ocean energy plants
Ana Brito e Melo into electrical grids
A g r e e m e n ts . Powertech Labs
h t t p : / / w w w. i e a . o r g / t e x t b a s e / t e c h n o / i n d e x . a s p Contact: Gouri Bhuyan
E ur ope a n O c e a n E n e r g y As s o c ia t io n
How to participate in the IEA-OES
T h e E U - O E A u n i t e s t h e b r o a d i n t e r e s ts o f t h e E u r o p e a n
If your country has not signed the Implementing Agreement, contact the Executive
ocean energy industry into a single, focused and
Committee Chairperson who will provide you with information on how to proceed.If
independent voice. Together with its regional and industry
your country has signed the Implementing Agreement contact the Executive
pa r t n e r s , t h e E U - O E A a n d i ts m e m b e r s a d d r e s s i s s u e s o f
Committee member from your country or the Operating Agent of the Task(s) you
relevance to the industry with decision-makers including
are interested in.
regulators, legislators, and policymakers.
h t t p : / / w w w. e u - o e a . c o m
The IEA-OES Website: http://www.iea-oceans.org
Publication IEA-OES Executive Committee Acting Editor IEA-OES
Design INETI - DER Circulation 1200 copies
Printing CLIO - Artes GrЗficas ISBN 1645-7811