Byddai'r cam hwn wedi golygu bod yn rhaid i fusnesau, gwasanaethau a seilwaith hanfodol ar y parc bontio'r bwlch yn y cyflenwad ynni gyda generaduron diesel neu nwy, sy'n ddrutach, yn llai gwydn ac sydd â'r potensial i effeithio'n sylweddol ar ansawdd aer yn yr ardal leol. Roedd risg gwirioneddol y byddai pŵer diesel yn methu mewn storm gyda chanlyniadau trychinebus posibl.
This action would have meant businesses, services and critical infrastructure on the park having to bridge the gap in energy supply with diesel or gas fired generators, which are more expensive, less resilient and have the potential to significantly impact air quality in the local area. There was a real risk of diesel power failing in a storm event with potentially catastrophic consequences.