Essential Energy say their technicians are investigating how some western plains customers received SMS messages announcing the end of an outage that wasn't actually happening.

For one customer between Coonamble and Warren, the first message came just after 4.30pm on Thursday 25 September, followed quickly by two more with identical content.

"It said that the current outage was expected to be fixed by 9pm.

"I wasn't at home so I double-checked my messages to see if I'd missed one telling me there was going to be an outage but I couldn't find anything," they said.

"Then two more came.

"It was strange, I did think maybe I should pick up takeaway for dinner.

"When I got home my husband said the power had been on the whole time.

"Then this morning the messages began again just after eight o'clock."

The customer received seven messages in quick succession, all announcing that the 'outage' would be ending at 11:00am on 26 September.

However the power was still on.

Inquiries to Essential Energy revealed that no outages were occurring, either planned or unexpected.

It seems a glitch in their messaging system may have been responsible.

"Essential Energy is aware of an intermittent technical issue that resulted in some customers receiving incorrect SMS outage notifications overnight and this morning," a spokesperson told the Western Plains App.

"Our teams are working quickly to resolve the issue, and we apologise for any inconvenience caused."

With the technical issue sending 'rogue' messages to customers across a rural properties, one customer expressed concern over the impacts.

"We are being trained to rely on these messages," they said.

"I don't know if they realise that people might call off shearing or anything that relies on power if they think there'll be an outage.

"You could easily lose a day's work."

 It is not yet clear how many customers might have received the SMS messages.

"In the message, it says to click the link for further information," said another customer.

"When they kept coming and all the messages were from different mobile numbers I thought it might have been a scam.

"It's so handy to know when an outage is coming and when it should end, so usually the texts are great, but you do wonder if some people will stop taking notice of them."

Essential Energy say that the issue did not appear to be very widespread.