However, it is not clear how long the jobs will be protected at the site.
His vow comes as the plant’s operator SSE reviews future options for Peterhead over the coming months.
Local MSP Stewart Stevenson made enquiries as a result of an announcement that Peterhead Power Station failed to secure a deal to supply capacity to the UK grid in the recent capacity market auction.
Figures previously revealed the growing disparities in costs of generation charges as Peterhead could face paying an estimated £19.60 per kilowatt compared to a gas fired power station in Kent which would pay only £1.75.
Stevenson, MSP for Banffshire and Buchan, asked the Scottish Government what impact the review by SSE would have for jobs and the local economy.
Wheelhouse said: “SSE has said it will be reviewing future options for Peterhead over the coming months and will engage with all stakeholders.
“During the review the current operations at the station, and the workforce of 90 personnel will not be affected.
“We are very mindful of the need to ensure a sustainable future for the plant and all whose livelihoods depend upon it.”
MSP Stevenson said: “Peterhead has already been grossly disadvantaged by the Capacity Market Auction.
“The facility also lost out on funding from the Tories but I am glad that as this review is completed, jobs will not be at risk.
“It is imperative we continue to look for opportunities for Peterhead Power Station that boost the site and the regional economy.”
Wheelhouse also said Peterhead had “great potential” to demonstrate Carbon Capture and Storage (CCS). He said the Scottish Government “deeply regretted” the withdrawal of support for CCS.