summary of resource potential the technical each renewable technology in north devon and torridge area has been assessed detail previous sections this section summarises level energy that could technically be exploited within takes into account following restrictions such as solar power requires a southerly facing roof or wall space land availability for example available woodland set aside built up areas landscape designations restricting where wind turbines can sited etc geographical speeds marine currents amount sunshine offshore offers by far largest resources figure 1 wave is relatively small since only shore mounted devises were considered however unlikely to due early stages development no commercial schemes exist so future result drastic increase technological along 5 100gwh year source safire onshore