This graph shows the fraction of Ireland's energy demand derived from renewables. The BAU scenario is quite ineffective in making a transition; current policies projected into the future achieve no better than a 20% penetration.
Fair Shares and Enlightened Transition both have similar renewables policies, and achieve similar results. The reason for Fairs Shares having a fraction going above 1 is due to over supply of energy in the economy causing the model to over estimate this fraction.
The spike around 2030 for the Localisation is not a sign of a sudden switch to renewables, but of economic collapse. Overall energy demand decreases rapidly, while the small renewables capacity remains unchanged.