POWER December 2021 - S13

December 2021
POWER AWARDS
Minesto's Subsea Tidal Kite, Faroe Islands
S
ince Minesto-a 2007-established
spinoff of Swedish aerospace manufacturer
Saab-rolled out its first
iteration of its subsea kite, it has quickly
marked new developmental milestones.
In 2009, it produced the first electricity
from the SeaKite I prototype in tank tests
in the Netherlands, and then conducted
ocean trials with the SeaKite II in 2011. In 2013, it built the first
Deep Green Ocean prototype with a 3-meter wing span, and
ran it at full tidal cycle at Minesto's marine energy test site
Strangford Lough in Northern Ireland. Finally, in June 2018, the
company commissioned the first Deep Green utility-scale project-a
single 500-kW demonstrator Minesto calls " DG500 " -
at Holyhead Deep off the coast of Wales.
Then in February 2020, in perhaps its most pivotal milestone,
Minesto secured a 2.2-MW power purchase agreement
(PPA) with SEV, the main energy supplier for the Faroe Islands,
an autonomous territory within the Kingdom of Denmark that
comprises 18 islands in the middle of the North Atlantic Ocean
(north of Scotland and halfway between Norway and Iceland).
The breakthrough approach by SEV, which is owned by municipal
generators that serve the territory's different islands, was
founded on its determination to phase out its oil use entirely
by 2030, owing mainly to price volatility. SEV's long-term ambitions
include a large-scale build-out of tidal energy of between
30 MW and 70 MW, making it a dominant and predictable energy
source for the islands.
Courtesy: Minesto
Minesto kicked off operation of its first project for SEV in
July 2020 in Vestmannasund, a strait between the islands of
Vagar and Steymor, with the installation of project infrastructure,
including the foundation, export cable, and onshore control
station for a scaled-down 100-kW version of the Deep
Green tidal kite. Commissioning began in December 2020, and
power production officially began in late 2020.
Success of Minesto's Faroe Islands project will determine
how far SEV will progress with its long-term ambition to add
30 MW to 70 MW of generating capacity from tidal streams.
The next step on the Faroe Islands may be a larger installation,
potentially of 10 MW, comprising 1-MW DG plants. Minesto,
meanwhile, is also developing several other projects, including
at its Holyhead Deep installation in Wales. ■
Red Rock Hydroelectric Plant, Iowa
T
he Red Rock Dam on the Des Moines
River, about 2.5 miles southwest of
Pella, Iowa, was constructed by the
U.S. Army Corps of Engineers in 1969 for
flood control, which remains the dam's
primary purpose today. However, Missouri
River Energy Services (MRES)-a
61-member organization of municipalities
spread across Iowa, Minnesota, North Dakota, and South Dakota-made
the decision to add power generation to the existing
Red Rock Dam based on its desire to supply clean, reliable,
cost-effective, long-term renewable electricity to its members.
The successful project is a 2021 POWER Top Plant Award winner
in the renewable energy category.
After acquiring the Federal Energy Regulatory Commission
license from the original project developer, MRES awarded a
design contract to Stantec in 2011. Stantec (formerly MWH)
was the Engineer of Record for the plant (from the intake structure
to the tailrace). Other companies that played major roles in
the development and construction of the Red Rock Hydropower
Project include DGR Engineering (Engineer of Record for the
substation, transmission, and utilities), Voith Hydro (equipment
manufacturer for the turbines, generators, and balance-of-plant
systems), Ames Construction (general contractor for project
construction), and Rockwell Automation (Allen-Bradley programmable
controllers for the plant control system). The project
was developed using a hybrid " design-bid-build " approach
in which the engineers completed much of the design, includSupplement
to POWER
Courtesy: Missouri River Energy Services
ing temporary structures, while leaving the detailed design of
mechanical and electrical systems to the contractor.
" Constructing a project immediately adjacent to an operating
spillway presented significant challenges, " Tom Andrews,
vice president of Power and Dams with Stantec, told POWER.
" Construction of the permanent works required upstream and
downstream cofferdams, and several excavations up to 70 feet
deep into the existing dam and its foundation, plus penetrations
through the existing concrete gravity monolith. The intrusive
nature of the work required that steps be taken during
construction to reduce potential impacts to the dam's integrity
and to maintain dam safety. "
Design work began in 2011, but the construction contract
and onsite work did not start until 2014. During the project,
more than 2.3 million onsite worker hours were logged, with
about 175 workers involved at the height of construction. Wet
commissioning of turbine generator units was completed
in July 2020, and substantial completion of the project was
acknowledged on September 2 that year. The facility was declared
commercially complete on June 10, 2021. ■
www.powermag.com
13
RENEWABLE
RENEWABLE
TOP PLANT
TOP PLANT
http://www.powermag.com

POWER December 2021

Table of Contents for the Digital Edition of POWER December 2021

POWER December 2021 - Cover1
POWER December 2021 - Cover2
POWER December 2021 - 1
POWER December 2021 - 2
POWER December 2021 - 3
POWER December 2021 - 4
POWER December 2021 - 5
POWER December 2021 - 6
POWER December 2021 - 7
POWER December 2021 - 8
POWER December 2021 - 9
POWER December 2021 - 10
POWER December 2021 - 11
POWER December 2021 - 12
POWER December 2021 - 13
POWER December 2021 - 14
POWER December 2021 - 15
POWER December 2021 - 16
POWER December 2021 - 17
POWER December 2021 - 18
POWER December 2021 - 19
POWER December 2021 - 20
POWER December 2021 - SCover1
POWER December 2021 - SCover2
POWER December 2021 - S1
POWER December 2021 - S2
POWER December 2021 - S3
POWER December 2021 - S4
POWER December 2021 - S5
POWER December 2021 - S6
POWER December 2021 - S7
POWER December 2021 - S8
POWER December 2021 - S9
POWER December 2021 - S10
POWER December 2021 - S11
POWER December 2021 - S12
POWER December 2021 - S13
POWER December 2021 - S14
POWER December 2021 - S15
POWER December 2021 - S16
POWER December 2021 - SCover3
POWER December 2021 - SCover4
POWER December 2021 - 21
POWER December 2021 - 22
POWER December 2021 - 23
POWER December 2021 - 24
POWER December 2021 - 25
POWER December 2021 - 26
POWER December 2021 - 27
POWER December 2021 - 28
POWER December 2021 - 29
POWER December 2021 - 30
POWER December 2021 - 31
POWER December 2021 - 32
POWER December 2021 - 33
POWER December 2021 - 34
POWER December 2021 - 35
POWER December 2021 - 36
POWER December 2021 - 37
POWER December 2021 - 38
POWER December 2021 - 39
POWER December 2021 - 40
POWER December 2021 - Cover3
POWER December 2021 - Cover4
https://www.nxtbook.com/accessintelligence/POWER/power-may-2022
https://www.nxtbook.com/accessintelligence/POWER/power-may-2022-intl
https://www.nxtbook.com/accessintelligence/POWER/power-april-2022
https://www.nxtbook.com/accessintelligence/POWER/Power-April-2022-Intl
https://www.nxtbook.com/accessintelligence/POWER/power-march-2022
https://www.nxtbook.com/accessintelligence/POWER/power-february-2022
https://www.nxtbook.com/accessintelligence/POWER/power-january-2022
https://www.nxtbook.com/accessintelligence/POWER/power-december-2021
https://www.nxtbook.com/accessintelligence/POWER/power-top-plants-supp-december-2021
https://www.nxtbook.com/accessintelligence/POWER/power-november-2021
https://www.nxtbook.com/accessintelligence/POWER/power-october-2021
https://www.nxtbook.com/accessintelligence/POWER/power-september-2021
https://www.nxtbook.com/accessintelligence/POWER/power-august-2021
https://www.nxtbook.com/accessintelligence/POWER/power-july-2021
https://www.nxtbook.com/accessintelligence/POWER/power-june-2021
https://www.nxtbook.com/accessintelligence/POWER/power-may-2021
https://www.nxtbook.com/accessintelligence/POWER/power-april-2021
https://www.nxtbook.com/accessintelligence/POWER/power-march-2021
https://www.nxtbook.com/accessintelligence/POWER/power-february-2021
https://www.nxtbook.com/accessintelligence/POWER/power-january-2021
https://www.nxtbook.com/accessintelligence/POWER/power-december-2020
https://www.nxtbook.com/accessintelligence/POWER/power-november-2020
https://www.nxtbook.com/accessintelligence/POWER/power-october-2020
https://www.nxtbook.com/accessintelligence/POWER/power-september-2020
https://www.nxtbook.com/accessintelligence/POWER/power-august-2020
https://www.nxtbook.com/accessintelligence/POWER/power-july-2020
https://www.nxtbook.com/accessintelligence/POWER/power-june-2020
https://www.nxtbook.com/accessintelligence/POWER/power-may-2020
https://www.nxtbook.com/accessintelligence/POWER/power-april-2020
https://www.nxtbook.com/accessintelligence/POWER/power-march-2020
https://www.nxtbook.com/accessintelligence/POWER/power-february-2020
https://www.nxtbook.com/accessintelligence/POWER/power-january-2020
https://www.nxtbook.com/accessintelligence/POWER/power-december-2019
https://www.nxtbook.com/accessintelligence/POWER/power-november-2019
https://www.nxtbook.com/accessintelligence/POWER/power-october-2019
https://www.nxtbook.com/accessintelligence/POWER/power-september-2019
https://www.nxtbook.com/accessintelligence/POWER/power-august-2019
https://www.nxtbook.com/accessintelligence/POWER/power-july-2019
https://www.nxtbook.com/accessintelligence/POWER/power-june-2019
https://www.nxtbook.com/accessintelligence/POWER/power-may-2019
https://www.nxtbook.com/accessintelligence/POWER/power-april-2019
https://www.nxtbook.com/accessintelligence/POWER/power-march-2019
https://www.nxtbook.com/accessintelligence/POWER/power-february-2019
https://www.nxtbook.com/accessintelligence/POWER/power-january-2019
https://www.nxtbook.com/accessintelligence/POWER/power-december-2018
https://www.nxtbook.com/accessintelligence/POWER/power-november-2018
https://www.nxtbook.com/accessintelligence/POWER/power-october-2018
https://www.nxtbook.com/accessintelligence/POWER/power-september-2018
https://www.nxtbook.com/accessintelligence/POWER/power-august-2018
https://www.nxtbook.com/accessintelligence/POWER/power-july-2018
https://www.nxtbook.com/accessintelligence/POWER/power-june-2018
https://www.nxtbook.com/accessintelligence/POWER/power-may-2018
https://www.nxtbook.com/accessintelligence/POWER/power-april-2018
https://www.nxtbook.com/accessintelligence/POWER/power-march-2018
https://www.nxtbook.com/accessintelligence/POWER/power-february-2018
https://www.nxtbook.com/accessintelligence/POWER/power-january-2018
https://www.nxtbook.com/accessintelligence/POWER/power-december-2017
https://www.nxtbook.com/accessintelligence/POWER/power-november-2017
https://www.nxtbook.com/accessintelligence/POWER/power-october-2017
https://www.nxtbook.com/accessintelligence/POWER/power-september-2017
https://www.nxtbook.com/accessintelligence/POWER/power-august-2017
https://www.nxtbook.com/accessintelligence/POWER/power-july-2017
https://www.nxtbook.com/accessintelligence/POWER/power-june-2017
https://www.nxtbook.com/accessintelligence/POWER/power-may-2017
https://www.nxtbook.com/accessintelligence/POWER/power-april-2017
https://www.nxtbook.com/accessintelligence/POWER/power-march-2017
https://www.nxtbook.com/accessintelligence/POWER/power-february-2017
https://www.nxtbook.com/accessintelligence/POWER/power-january-2017
https://www.nxtbook.com/accessintelligence/POWER/power-december-2016
https://www.nxtbook.com/accessintelligence/POWER/power-november-2016
https://www.nxtbook.com/accessintelligence/POWER/power-october-2016
https://www.nxtbook.com/accessintelligence/POWER/power-september-2016
https://www.nxtbook.com/accessintelligence/POWER/power-august-2016
https://www.nxtbook.com/accessintelligence/POWER/power-july-2016
https://www.nxtbook.com/accessintelligence/POWER/power-june-2016
https://www.nxtbook.com/accessintelligence/POWER/power-may-2016
https://www.nxtbook.com/accessintelligence/POWER/power-april-2016
https://www.nxtbook.com/accessintelligence/POWER/power-march-2016
https://www.nxtbook.com/accessintelligence/POWER/power-february-2016
https://www.nxtbook.com/accessintelligence/POWER/power-january-2016
https://www.nxtbook.com/accessintelligence/POWER/power-december-2015
https://www.nxtbook.com/accessintelligence/POWER/power-november-2015
https://www.nxtbook.com/accessintelligence/POWER/power-october-2015
https://www.nxtbook.com/accessintelligence/POWER/power-september-2015
https://www.nxtbook.com/accessintelligence/POWER/power-august-2015
https://www.nxtbook.com/accessintelligence/POWER/power-july-2015
https://www.nxtbook.com/accessintelligence/POWER/power-june-2015
https://www.nxtbook.com/accessintelligence/POWER/power-may-2015
https://www.nxtbook.com/accessintelligence/POWER/power-april-2015
https://www.nxtbook.com/accessintelligence/POWER/power-march-2015
https://www.nxtbook.com/accessintelligence/POWER/power-february-2015
https://www.nxtbook.com/accessintelligence/POWER/power-january-2015
https://www.nxtbook.com/accessintelligence/POWER/power-december-2014
https://www.nxtbook.com/accessintelligence/POWER/power-november-2014
https://www.nxtbook.com/accessintelligence/POWER/power-october-2014
https://www.nxtbook.com/accessintelligence/POWER/power-september-2014
https://www.nxtbook.com/accessintelligence/POWER/power-august-2014
https://www.nxtbook.com/accessintelligence/POWER/power-july-2014
https://www.nxtbook.com/accessintelligence/POWER/power-june-2014
https://www.nxtbook.com/accessintelligence/POWER/power-may-2014
https://www.nxtbook.com/accessintelligence/POWER/power-april-2014
https://www.nxtbook.com/accessintelligence/POWER/power-march-2014
https://www.nxtbook.com/accessintelligence/POWER/power-february-2014
https://www.nxtbook.com/accessintelligence/POWER/power-january-2014
https://www.nxtbook.com/accessintelligence/POWER/power-december-2013
https://www.nxtbook.com/accessintelligence/POWER/power-november-2013
https://www.nxtbook.com/accessintelligence/POWER/power-october-2013
https://www.nxtbook.com/accessintelligence/POWER/power-september-2013
https://www.nxtbook.com/accessintelligence/POWER/power-august-2013
https://www.nxtbook.com/accessintelligence/POWER/power-july-2013
https://www.nxtbook.com/accessintelligence/POWER/power-june-2013
https://www.nxtbook.com/accessintelligence/POWER/power-may-2013
https://www.nxtbook.com/accessintelligence/POWER/power-april-2013
https://www.nxtbook.com/accessintelligence/POWER/power-march-2013
https://www.nxtbook.com/accessintelligence/POWER/power-february-2013
https://www.nxtbook.com/accessintelligence/POWER/power-january-2013
https://www.nxtbook.com/accessintelligence/POWER/power-december-2012
https://www.nxtbook.com/accessintelligence/POWER/power-november-2012
https://www.nxtbook.com/accessintelligence/POWER/power-october-2012
https://www.nxtbook.com/accessintelligence/POWER/power-september-2012
https://www.nxtbook.com/accessintelligence/POWER/power-august-2012
https://www.nxtbook.com/accessintelligence/POWER/power-july-2012
https://www.nxtbook.com/accessintelligence/POWER/power-june-2012
https://www.nxtbook.com/accessintelligence/POWER/power-may-2012
https://www.nxtbook.com/accessintelligence/POWER/power-april-2012
https://www.nxtbook.com/accessintelligence/POWER/power-march-2012
https://www.nxtbook.com/accessintelligence/POWER/power-february-2012
https://www.nxtbook.com/accessintelligence/POWER/power-january-2012
https://www.nxtbook.com/accessintelligence/POWER/power-november-2011
https://www.nxtbook.com/accessintelligence/POWER/power-october-2011
https://www.nxtbook.com/accessintelligence/POWER/power-september-2011
https://www.nxtbook.com/accessintelligence/POWER/power-august-2011
https://www.nxtbook.com/accessintelligence/POWER/power-july-2011
https://www.nxtbook.com/accessintelligence/POWER/power-june-2011
https://www.nxtbook.com/accessintelligence/POWER/power-may-2011
https://www.nxtbook.com/accessintelligence/POWER/power-april-2011
https://www.nxtbook.com/accessintelligence/POWER/power-march-2011
https://www.nxtbook.com/accessintelligence/POWER/power-february-2011
https://www.nxtbook.com/accessintelligence/POWER/power-january-2011
https://www.nxtbook.com/accessintelligence/POWER/power-december-2010
https://www.nxtbook.com/accessintelligence/POWER/power-november-2010
https://www.nxtbook.com/accessintelligence/POWER/power-october-2010
https://www.nxtbook.com/accessintelligence/POWER/power-september-2010
https://www.nxtbook.com/accessintelligence/POWER/power-august-2010
https://www.nxtbook.com/accessintelligence/POWER/power-july-2010
https://www.nxtbook.com/accessintelligence/POWER/power-june-2010
https://www.nxtbook.com/accessintelligence/POWER/power-may-2010
https://www.nxtbookmedia.com