It is the ability to find a statistically significant difference when the null hypothesis is in fact false, in other words power is your ability to find a difference when a real difference exists. The power of a study is determined by three factors: the sample size, the alpha level, and the effect size.
Related Journals of Power Analysis
Transactions on Power Systems, Transactions on Networking, Progress in Quantum Electronics, Journal on Selected Topics in Signal Processing
Journal of Electrical & Electronic Systems received 733 citations as per Google Scholar report