New figures from the Sustainable Energy Authority of Ireland (SEAI) shows that deliveries of fuel for air travel sank by 84% in April while deliveries of petrol and diesel were down 55% and 52% respectively due to Covid-19 lockdowns.
April was the first full month of travel and business restrictions arising from the Covid-19 public health emergency.
The SEAI said the restrictions also saw electricity demand falling by 21% in April compared with pre-emergency levels.
But deliveries of kerosene for heating for both homes and business were up in March and April by 86% and 68% respectively compared with the same months in 2019.
The SEAI said this was likely due to a combination of stocking up due to delivery anxieties at the start of the lockdown and low retail oil prices due to international price movements.
Today's SEAI figures also show that the average daily electricity demand was about 15-20% lower during the first week of "stay at home" restrictions compared with the same week the previous month.