Renewable Energy, 5th Edition

where the square bracket denotes integer truncation.

The other wind-power average used in the regulation of the utility system is the average wind energy production in the previous 4 h, A₄, which is used every hour in conjunction with the expected load for the following hour to make a trial estimate of the required number of intermediate-load units, $n_{i\mathit{nt}}^{trial},$

$n_{int}^{trial}=\mathrm{integer}\left(\frac{E_{av}{C}_1{C}_2(t+1h)-A_4}{0.1E_{av}}\right)-n_{base}+2,$

where the operation “integer” ...