TWEFDA stands for Tidal and Wave Energy From Decommissionable Assets and is developing an Energy Device with dual functionalities, addressing the 2 biggest challenges the Energy Market is facing right now with one single device, being also capable to economically decommission aged offshore oil & gas producing assets after their end of economic recovery.

- Energy Storage (Cross-cutting issue): The appliance is capable of storing electricity from the National Grid in the form of potential energy, to release it as needed being able to store the energy produced so as to help balance the demand/offer curves.

- Renewable Energy Production (Ocean/Waves): The device's well optimised power take-off is full of redundancies in order to maximise uptime and has a high capacity of conversion even under relatively calmed oceans.

Since the power can be released as it is needed, this can be used either as:

  • Storage to improve the quality of supply.
  • Storage for emergency supply.
  • Storage for network management.

The system comprises 2 parts, one which is fixed and one that reciprocates with waves.

A Quick Connection System (being this one of the targets of Wave Energy Scotland) between the two parts allows the portability of the reciprocating one among several fixed parts. This allows the possibility to attend an emergency situation such as an earthquake or a Tsunami, and in conjunction with the ability for the device to be jacked-up secures survivability and facilitates maintenance operations.

The technology, with excellent Value Propositions is sustainable, has very big energy efficiency, can potentially repurpose decommissioning assets or relies on its own, belongs to the low-carbon technologies and contributes to the circular economy both, by using renewable sources, and by helping the National Grid to stabilise without using heavy/rare metals to store electricity.

In analogy with the blue and green hydrogen, we could say that potential energy storage could be called 'green storage' whereas electrochemical storage could be called 'blue storage'.

Its design, together with a much-optimized control system, allow the device to reduce the downturn with many redundancies and a system that allows to be working on a 24/7 basis in most weather conditions.

In addition to this, our device offers a dependable output largely free of the irregular availability of wind or solar alternatives.

The TWEFDA WEC (Wave Energy Converter) is a floating device attached to the seabed with very little physical impact on navigation and the environment.

In a first approach to costs, the device seems to be competitive within its industry as stated in the value propositions of our device.

Furthermore, the technology is required in the entire world, can be working 24/7, is extremely respectful of the environment, and has the potential to revolutionise the whole energy sector.

On top of all that, this is happening in Scotland!