Wave Energy Scotland (WES) is a technology development body[ clarification needed ] set up by the Scottish Government to facilitate the development of wave energy in Scotland. It was set up in 2015 and is a subsidiary of Highlands and Islands Enterprise (HIE) based in Inverness.
WES has managed numerous projects resulting from pre-commercial procurement funding calls in six main topic areas: power take-off, novel wave energy converters, structural materials and manufacturing processes, control systems, quick connection systems, and next generation wave energy. Each of these uses a stage-gate process, with fewer successful projects passing to later stages. WES has also commissioned eight landscaping studies in two phases. [1]
In 2020, together with the Basque Energy Agency (Ente Vasco de la Energía or EVE), WES set up the EuropeWave programme to develop and test the most promising wave energy technologies, of which three concepts will be tested at sea. This is supported by European Horizon 2020 funding.
The Scottish Government took positive action to support the ailing wave energy sector in Scotland, following the demise of one of the leading developers Pelamis Wave Power. The Energy Minister Fergus Ewing announced an initial budget for the body of £14.3 million over 13 months at the RenewableUK conference in February 2015. [2]
The original objectives for WES were set out by the Scottish Government as: [3]
The WES development programme uses a series of stage-gates to evaluate technology progress.
Through collaboration with the International Energy Agency's Ocean Energy Systems programme, Wave Energy Scotland has helped to develop "An International Evaluation and Guidance Framework for Ocean Energy Technology", first published in 2021. [4] This sets out a clear evaluation methodology for the technical development and cost-effectiveness of wave and tidal energy technologies. A second edition was published in October 2023, adding the important aspect of environmental acceptability which had been missing from the first draft. [5]
The framework consists of six sequential stages of development, which is equivalent to those used in the IEC guidelines for testing early stage WECs, [6] and can be linked to the widely-used Technology Readiness Level (TRL) scale.
Name | TRL | |
---|---|---|
Stage 0 | Concept creation | 1 |
Stage 1 | Concept development | 2–3 |
Stage 2 | Design optimisation | 4 |
Stage 3 | Scaled demonstration | 5–6 |
Stage 4 | Commercial-scale single device demonstration | 7–8 |
Stage 5 | Commercial-scale array demonstration | 9 |
The WES development programme uses a staged approach with projects progressing from concept (stage 1), through design (stage 2), to demonstration (stage 3). As of April 2024 [update] , WES has held funding calls to start five development programmes, listed below. [7] The successful projects in each stage are tabulated in List of projects funded by Wave Energy Scotland.
Call Title | Launch Date | Call Closed | Budget | Notice |
---|---|---|---|---|
Secondary energy conversion technologies (power take-off systems, PTO) | 19 March 2015 | 22 May 2015 | £7m | MAR203890 [8] |
Novel wave energy converters (NWEC) | 10 June 2015 | 13 August 2015 | up to £2.4m | JUN211095 [9] |
Structural materials and manufacturing processes (SMMP) | 15 July 2016 | 8 September 2016 | up to £3m | JUL250786 [10] |
Control systems (CS) | 5 April 2017 | 12 June 2017 | £660k | APR279121 [11] |
Quick Connection Systems (QCS) | 24 July 2019 | 16 September 2019 | £490k | JUL361298 [12] |
In 2023, a sixth area of Next Generation Wave Energy was introduced, focusing on flexible generators.
In March 2015, WES announced the fist call of their development programme, for innovative power take-off systems. Depending on the status of the technology, projects of £100k to £4m were sought, with successful applicants eligible to claim 100% of the cost of development. [13] A total of 42 applications were made for this £7m call, with contracts awarded to nine consortia. [14] [15]
In June 2015, the second call was announced, this time for "truly novel" wave energy converters. [20] Eight projects were funded for the first stage of the NWEC call, out of 37 applications. [21]
A third call for Structural Materials and Manufacturing Processes was launched in July 2016, looking for materials for the WEC structure or prime mover that would facilitate a step change reduction in LCOE. [25]
In April 2017, a call on feasibility studies for Control System was announced, particularly welcoming experience from other related sectors. This was for initial projects of up to £47k lasting three months. [29]
A call was launched in July 2019 for systems that facilitate rapid connection and disconnection of a WEC from the moorings/electrical system, which was expected to speed up installation and operations, both leading to reduced costs. [33]
In July 2023, a call was launched for concept designs that would directly convert motion into electricity, harnessing novel flexible electrostatic polymers and elastomers. [37] Five projects were awarded up to £50k for 12-14 week concept designs investigating dielectric elastomer generators, and dielectric fluid generators. [38]
Two projects, led by 4c Engineering and TTI Marine Renewables, were awarded a further £400k funding in August 2024 for Stage 2. Over the following nine months, they are expected to form collaborations and progress their concepts for flexible wave energy devices. [39]
In December 2020, together with the Basque Energy Agency (Ente Vasco de la Energía or EVE), WES set up the EuropeWave programme. [40] This builds on the WES programme, using the same staged approach and pre-commercial procurement model. The programme has a budget of over €22.5m, comprising national, regional, and European Horizon 2020 funding. Trade association Ocean Energy Europe is also part of the consortium. [41]
As with the WES Novel Wave Energy Converter call, the programme will consist of three stages (1–3), culminating in scaled demonstration in real sea conditions for a year, at either the European Marine Energy Centre, Orkney, Scotland, or the Biscay Marine Energy Platform (BiMEP) near Armintza, Basque Country. [42]
Seven companies, listed in the table below, were selected in December 2021 to develop their device concepts, sharing a budget of €2.4m. After completing Stage 1, the five most promising technologies progressed to Stage 2 to perform more extensive modelling and testing to optimise their design. [43]
In September 2023, it was announced that CETO Wave Energy Ireland ACHIEVE, IDOM Consulting MARMOK-Atlantic, and Mocean Energy Blue Horizon 250 had progressed to the final stage of the EuropeWave programme with a shared budget of €13.4m. [44] In April 2024, CETO secured a berth to test at BiMEP and also passed the authorisation to proceed milestone, enabling them to award the first contracts for fabrication of the device. [45] Mocean plan to test their 250 kW device at the EMEC Billia Croo site, aiming to launch in 2025. [46]
Company | Project | Status |
---|---|---|
AMOG Consulting | Sea-Saw WEC | Progressed to stage 2 |
Arrecife Energy Systems | Trimaran | Progressed to stage 2 |
Bombora Wave Power Europe | emWave | Completed stage 1 |
CETO Wave Energy Ireland | ACHIEVE | Progressed to stages 2 and 3 |
IDOM Consulting | MARMOK Atlantic | Progressed to stages 2 and 3 |
Mocean Energy | Blue Horizon 250 | Progressed to stages 2 and 3 |
Waveram | The Waveram | Completed stage 1 |
WES acquired intellectual property developed by the now defunct Scottish wave energy companies Pelamis Wave Power and Aquamarine Power. The former as part of the inception of Wave Energy Scotland, hiring 12 former Pelamis employees including CEO Richard Yemm. [47] The latter was completed in September 2016. [48]
WES maintain an online Knowledge Library as part of their website, to provide access to information and documents from their extensive technology development programmes. [49] It also contains reports from the knowledge capture projects from Pelamis Wave Power, Aquamarine Power, and AWS Ocean Energy.
With the exception of 2020 and 2021, WES has held an annual conference since 2016 to showcase progress in the sector. [50]
The first Wave Energy Scotland annual conference was held on 2 December 2016 at Pollock Halls in Edinburgh. [51] This provided an update of ongoing and future calls, plus quick-fire updates from participants ongoing PTO and NWEC calls.
A second annual conference was held on 28 November 2017. [52]
The third annual conference was held on 6 December 2018 at the Edinburgh International Conference Centre. [53]
Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC).
The Pelamis Wave Energy Converter was a technology that used the motion of ocean surface waves to create electricity. The machine was made up of connected sections which flex and bend as waves pass; it is this motion which is used to generate electricity.
The production of renewable energy in Scotland is a topic that came to the fore in technical, economic, and political terms during the opening years of the 21st century. The natural resource base for renewable energy is high by European, and even global standards, with the most important potential sources being wind, wave, and tide. Renewables generate almost all of Scotland's electricity, mostly from the country's wind power.
The Wave Hub is an offshore renewable energy research project, originally developed for wave power, but following limited interest is being developed for floating offshore wind. The project is developed approximately 10 miles (16 km) off Hayle, on the north coast of Cornwall, United Kingdom.
CETO is a wave-energy technology that converts kinetic energy from ocean swell into electrical power and directly desalinates freshwater through reverse osmosis. The technology was developed and tested onshore and offshore in Fremantle, Western Australia. In early 2015 a CETO 5 production installation was commissioned and connected to the grid. As of January 2016 all the electricity generated is being purchased to contribute towards the power requirements of HMAS Stirling naval base at Garden Island, Western Australia. Some of the energy will also be used directly to desalinate water.
The European Marine Energy Centre (EMEC) Ltd. is a UKAS accredited test and research centre focused on wave and tidal power development, based in the Orkney Islands, UK. The centre provides developers with the opportunity to test full-scale grid-connected prototype devices in wave and tidal conditions, at pre-consented test sites. EMEC also has sites for testing smaller-scale prototypes in more sheltered conditions.
Pelamis Wave Power designed and manufactured the Pelamis Wave Energy Converter – a technology that uses the motion of ocean surface waves to create electricity. The company was established in 1998 and had offices and fabrication facilities in Leith Docks, Edinburgh, Scotland. It went into administration in November 2014.
The Saltire Prize, named after the flag of Scotland, was a national award for advances in the commercial development of marine energy.
Richard Yemm is the British inventor of the Pelamis Wave Energy Converter and was director of the former Pelamis Wave Power, a company he founded in Edinburgh in 1998. In 2014 he co-founded a new company, Quoceant, who are engineering consultants specializing in marine energy and technology innovation.
Waves4Power is a Swedish-based developer of buoy-based Offshore Wave Energy Converter (OWEC) systems. Ongoing research and development is done in collaboration with Chalmers University of Technology. A partnership with Dutch engineering specialist BnD-Engineering in 2021 aimed to commercialize and deploy the system on a global scale.
MARMOK-A-5 is an offshore electrical power generator that uses wave energy to create electricity. This device is a spar buoy installed in the maritime testing site BiMEP, in the Bay of Biscay. It is the first grid-connected maritime generator in Spain, and one of the first in the world.
The Ocean Grazer is a conceptual energy collection platform, projected to house several renewable energy generation modules, including wave energy, solar energy and wind energy. The development of the Ocean Grazer platform has been carried out by the University of Groningen in the Netherlands, since 2014, and now by a spin-out company Ocean Grazer BV.
Mocean EnergyLtd. is a wave energy technology developer, based in Edinburgh and Aberdeen. They are developing a hinged-raft attenuator wave energy converter (WEC) at various scales for different markets.
CorPower Ocean AB is a wave energy device developer, headquartered in Stockholm, Sweden. They also have offices in Oslo, Viana do Castelo, and Stromness. The office in Viana do Castelo is an R&D centre that also serves as the manufacturing and service centre for the wave energy converters (WEC).
The Aguçadoura test site is an offshore location in the north of Portugal where grid connected offshore renewable energy devices have been tested, for research and project demonstration. It is about 5 km (3 miles) off the coast of Aguçadoura, Póvoa de Varzim, about 35 km NNE of central Porto.
AWS Ocean Energy Ltd is a Scottish wave energy device developer, based in Dochfour near Inverness, Highland. The company has developed and tested several concepts, primarily the Archimedes Waveswing (AWS) after which the company is named.
The Penguin is a wave energy converter (WEC) which was developed by Finnish company Wello Oy between 2008 and 2023. Two full-scale device were constructed, and tested in Scotland and Spain respectively, although both tests ended in difficulties.
WaveRoller is a wave energy converter (WEC) developed by Finish company AW-Energy Oy since 2002, although the initial concept was developed between 1993 and 1999.