The Southern Company (SO) beat the Zacks Consensus Estimate for earnings in each of the last four quarters. The utility has a trailing four-quarter earnings surprise of 8.5%, on average.
Pinnacle West Capital's (PNW) first-quarter results are expected to gain from news rates and an expanding customer base. However, higher operations and maintenance expenses might impact negatively.
Alliant Energy's (LNT) first-quarter results are expected to benefit from new solar projects and higher capital investments. However, higher depreciation expenses might impact negatively.