New Orleans-based Entergy Corp. reported its second-quarter 2015 operational earnings fell to $149.9 million, or 83 cents per share, compared to $200.3 million, or $1.11 per share, a year ago.

Lower prices for the electricity generated by nuclear power and less production from those plants accounted for much of the difference. The Entergy Wholesale Commodity segment lost 2 cents per share in the second quarter, compared to a profit of 18 cents per share a year ago.

The results fell far short of Wall Street forecasts. Stock analysts surveyed by Zacks Investment Services expected earnings of $1.13 per share.

However, Entergy Chief Executive Officer Leo Denault said the results were in line with its expectations. The utility said it still expects to reach its 2015 operational earnings estimate of $5.10 to $5.90 per share.