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Opinion | Iridescent says....

Developing community-owned tidal power

19/3/2019

 
“Half of Europe’s tidal energy [is] around UK shores. The seas could help us reach a huge chunk of our 2020 energy targets.” Dr Jennifer Hoxton, University Highlands and Islands - NERC Planet Earth, Summer 2017.
  
Paul Hamlyn Foundation awarded Iridescent Ideas CIC a small grant in 2017 to explore the concept of community-owned tidal power in Plymouth. This blog explores our findings and ideas to help the future development of projects like this.
There has been considerable social enterprise and community-led development in the wind and solar renewable energy sectors, however, within the marine renewable energy field there has been very little progress. Yet it is estimated that marine renewable energy could provide:

  • Up to £70 billion to the UK economy by 2050 and could create tens of thousands of jobs[1]
  • Over 20% of the UK’s electricity demand[2].

We explored the feasibility of developing community-owned tidal power in Plymouth. Based on the data we have available into tidal flow and costs; current technology is not suitable for the locations in Plymouth we identified. Our study engaged a range of partners including University of Plymouth, Plymouth Marine Laboratory, local sailing organizations, tech businesses and others. We met and worked with:

  • Community energy specialists in Plymouth and Scotland
  • Our local authority
  • Regional renewable energy experts
  • A tidal turbine developer in Scotland
  • Engineering consultancies
  • The Queens Harbour Master
  • Power company
  • Marine Management Organization.
 
We have learned a lot from developing the project. The detailed findings are available on a website we created about the project. We have also set up Tide Plymouth – a locally owned social enterprise – to explore future opportunities around tidal power.

We decided to write this blog about some of the policy issues we faced and also things we wished we’d known when we started! Much time could be saved for future projects if some of the policy barriers could be addressed.
 
Availability of reliable tidal flow data
 
Issue
 
A tidal power project needs appropriate tidal flow to work effectively. Finding accurate data about tidal flows proved problematic. We had to commission specialist research into this area and, even then, the researchers found data difficult to find.
 
Recommendation

  • Government research agencies could invest in a research project that gathers existing data and/or maps tidal flows around the country more accurately and comprehensively. This database could be publicly available for anyone developing tidal power projects.
 
Tax incentives
 
Issue
 
There are a few tax incentives for developing renewable projects. However, a significant barrier to developing community-owned schemes is the removal of Social Investment Tax Relief (SITR) from community energy projects. This would de-risk future projects and incentivise more investment into community-owned renewables.
 
Recommendation

  • Government should allow SITR to be claimed on community-owned renewable projects.
 
Investment in publicly available research
 
Issue
 
There is a general lack of publicly available research into community-owned tidal projects. We only found out late in the day that some other feasibility projects had taken place around Plymouth. If this data had been publicly available, it would have saved considerable time.
 
Recommendation

  • A ‘moral’ case – local developers (private, public or third sector) of tidal power projects could make their data publicly available.
  • Any government backed schemes should insist on research results being made public.
 
Investment in technology
 
Issue
 
We need more small-scale schemes with technology in the water. Many tidal power schemes are huge (e.g. Swansea lagoon, Severn Barrier) with significant costs, environmental impact and political implications.
 
We believe that smaller, community-owned turbines could herald the dawn of a new approach to tidal power and unleash some of the energy potential. These projects will be more affordable, have less environmental impact and with community support face fewer political barriers. However, technology developments are slow in this area.
 
Recommendation

  • Government could set up a specific scheme to invest in micro tidal turbine technology and R&D.
 
Understanding community-ownership
 
Issue
 
In our experience explaining the concepts of community ownership and social enterprise took time and effort yet these models provide a fantastic opportunity for communities to own their own energy, to raise significant sums of investment and to mitigate community concerns about the impact of such projects. More work is needed to make community-ownership and social enterprise more publicly understood as an attractive option for developers.
 
Recommendation

  • Government could invest more in research and dissemination about these models of ownership.
  • Local authorities and local social enterprise communities need to find ways to engage more people.
  • Universities and schools should teach social enterprise as a core component of business studies type courses.
 
Project development funding
 
Issue
 
There is limited funding available to help develop schemes. We recognise that these are business schemes and, on the whole, they should succeed or fail on their own commercial merits. However, if government believes in creating an economy that is more inclusive and which has less environmental impact then creating funds to support development of such schemes into this area would be a significant benefit.
 
Recommendation

  • A Community Energy Fund could catalyse developments
  • Funding for community-owned business projects from funders like Power to Change could have a specific scheme for marine energy projects.
 
​Summary
 
We think there is a significant gap and potential for innovation in this market to create a more collaborative and resilient economy.
 
Our research shows that there very few community owned marine renewable developments. There appears to have been little policy or strategic development into supporting these types of projects. When compared to the wind and solar renewable energy sectors where social enterprise is a common business model this is surprising. A further knowledge gap exists in the innovative aspect of micro, or small scale, marine energy generation.
 


[1] Carbon Trust quoted in the Marine Energy Park Prospectus (RegenSW) - page 4
[2] South West Marine Energy Park Prospectus, Jan 2012, RegenSW - page 4

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