Its the gravitational pull of the moon, and to some extent the sun, which gives the tides their rhythm. And unlike wind, solar or hydro, tidal Power Isnt reliant on weather. While tidal barrages have been around for decades, their cost and the ecological impact has been a barrier. Now, from the scottish islands through to canada, a new generation of tech firms have introduced tidal stream turbines. Ocean energy is still largely untapped, so what are the barriers that have prevented it from taking off . Its a relatively small and new industry, so very few machines in the water, and then you have to compete with wind farms and solar pv, etc. Were now addressing a resource thats so much larger, so were opening up a market that didnt even exist before. If all goes to plan, there could be arrays of subsea kites around the faroe islands, installed in groups similar to wind farms