The fire service has confirmed the massive fire involving 400 tonnes of straw in Gosmore near Hitchin has now been fully extinguished.
The blaze, which started at around half past midnight, was fully put out around midday.
Electrical engineers from UK Power Networks were alerted by the fire service that, due to overhead lines nearby, their electrical network could be affected so 453 homes initially had their electricity isolated for safety reasons.
Power was restored in 436 homes in Langley and Preston shortly afterwards – but 17 homes in Little Wymondley, Kings Walden and St Ippolyts were left without power until 1pm.
A fire service spokesman confirmed the fire was accidental and no further investigations are due to take place bar standard inspections to ensure to the fire is completely out.
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