A techno-economic analysis of tidal energy technology

Cameron Johnstone, D. Pratt, Joseph Clarke, Andrew Grant

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


The choice of which type of electrical power generation technology to adopt is driven by a number of factors including: cost of generated electricity; responsiveness of generating plant to demand; security of supply/resource availability; environmental impact; and execution risk. Within these, tidal energy is unique as a renewable technology since it has the capability of providing predictable, firm power contributing to security of supply. This predictability gives tidal energy additional value in a future electricity market. Especially one where stochastic renewable technologies contribute to a sizable component of the power supplied; and where reserve capacity is required to maintain supply during periods of non-availability. In the shorter term, in order for tidal energy to gain commercial acceptance, tidal technologies under development need to produce electricity at a competitive price. This paper examines the drivers influencing electricity pricing; current tidal energy developments, aimed at reducing capital costs; and bench-mark these against offshore wind.
Original languageEnglish
Pages (from-to)101-106
Number of pages6
JournalRenewable Energy
Early online date12 Mar 2012
Publication statusPublished - Jan 2013


  • tidal energy
  • wave energy
  • off-shore wind power
  • firm power
  • security of supply
  • economic analysis

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