MSGID: 1:317/3 6493ce75   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    How tidal range electricity generation could meet future demand and   
   storage problems    
      
     Date:   
         June 21, 2023   
     Source:   
         Lancaster University   
     Summary:   
         Tidal range schemes are financially viable and could lower energy   
         bills say researchers. Research combined a tidal range power   
         generation model with its cost model to demonstrate the viability   
         of tidal power. The research demonstrates the benefits of tidal   
         energy, which does not suffer from unpredictable intermittency   
         as power is generated both day and night, and in windy or calm   
         weather. The creation of a tidal barrage could operate for 120   
         years or more to meet future demand and storage problems.   
      
      
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   FULL STORY   
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   Tidal range schemes are financially viable and could lower energy bills   
   say researchers.   
      
   Research by Lancaster University's School of Engineering and the UK Centre   
   for Ecology and Hydrology combined a tidal range power generation model   
   with its cost model to demonstrate the viability of tidal power.   
      
   Professor George Aggidis, Head of Energy Engineering at Lancaster   
   University, said: "The obvious question for the UK, with one of the best   
   tidal resources globally, is why haven't we already got a tidal barrage   
   scheme?"  The research published inEnergy demonstrates the benefits of   
   tidal energy, which does not suffer from unpredictable intermittency as   
   power is generated both day and night.   
      
   The creation of a tidal barrage could operate for 120 years or more to   
   meet future demand and storage problems.   
      
   Professor Aggidis said: "There is an urgent need to kick-start the   
   selection and development of schemes around Britain. Tidal range   
   generation is predictable renewable energy driven by the gravitational   
   pull of the moon and sun. The environmental and economic benefits are   
   huge as barrages can protect coastal areas from flooding and sea level   
   rise. With two-way generation and pumping, the full range of existing   
   tides can be maintained within impoundments to protect and support   
   low-lying intertidal areas such as saltmarshes and mudflats.   
      
   Our studies show that with modern technology and operating procedures,   
   estuarine barrages are the only practical way to protect these vital   
   habitats.   
      
   Coastal lagoons have also been proposed for several locations around   
   Britain's coast. Schemes will provide jobs in construction and   
   manufacturing for generations to come as well as opportunities for   
   transport, communication, conservation, and recreation. In the long-term   
   they will provide reliable power with reduced costs."  The UK has the   
   second highest tidal range in the world and offers the UK a level of   
   independence from global prices and in the long-term cheap clean power.   
      
   Currently the Tidal Range projects under commercial consideration offer   
   an achievable 10 GW installed capacity, delivering over 20TWh/y, about 5%   
   of UK energy use. Based on the UK relevant resource availability there   
   is the potential to further increase this installed capacity over 4 to   
   5 times with other tidal range project sites around the UK.   
      
   Such developments are essential to assist the UK to reduce its carbon   
   emissions by replacing fossil fuel power stations. The current UK   
   total generating capacity is around 42.8 GW that includes fossil fuels   
   (19.2GW 44.9%), renewables (16.5GW, 38.5%), and low carbon (7.1GW --   
   16.6%). The La Rance Tidal Range plant in France today generates the   
   cheapest electricity in the EDF fleet -- cheaper than nuclear.   
      
       * RELATED_TOPICS   
             o Matter_&_Energy   
                   # Energy_Technology # Electricity # Energy_and_Resources   
                   # Solar_Energy   
             o Earth_&_Climate   
                   # Energy_and_the_Environment # Renewable_Energy #   
                   Tsunamis # Weather   
       * RELATED_TERMS   
             o Hydroelectricity o Renewable_energy o Tide o Power_station   
             o Nuclear_power_plant o Energy_development o Wind_power o   
             Water_turbine   
      
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   Story Source: Materials provided by Lancaster_University. Note: Content   
   may be edited for style and length.   
      
      
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   Journal Reference:   
      1. David Vandercruyssen, Simon Baker, David Howard, George   
      Aggidis. Tidal   
         range generation: combining the Lancaster zero-dimension generation   
         and cost models. Proceedings of the Institution of Civil Engineers -   
         Energy, 2023; 1 DOI: 10.1680/jener.22.00077   
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   Link to news story:   
   https://www.sciencedaily.com/releases/2023/06/230621105226.htm   
      
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