The company released its annual report in November for the 2014-2015 financial year.

Of particular public interest was the almost $4 million paid in salaries and bonuses to executives.

It stands in stark contrast to the 700 jobs the company said it would have to cut because of restrictions imposed on it by the Australian Energy Regulator in 2015.

The report shows the company delivered an operating profit before tax of $381.2 million, which was significantly higher than the target of $108.5 million.

The Electrical Trades Union (ETU) said management took home "huge salaries" and bonuses showed a culture of "executive greed".

"The community was told Essential Energy had no choice but to slash jobs and services because of the financial challenges it faced, yet now we see that those cuts were only necessary because the Baird Government and the individual executives have been lining their pockets," ETU secretary Steve Butler said.

It was revealed in August 2015 that Essential Energy spent almost $1.5 million to investigate its own staff from 2010 to 2014.

The latest annual report noted its employees had contributed to $69,000 to five charities, with the company's contribution taking the total amount to $137,215.

That means the company's total charity contributions were less than chief operating officer Gary Humphreys' annual bonuses of $71,950.

The ETU's Mr Butler said Essential Energy's executives were "totally out of touch" with the community.

When asked to justify his staff's bonuses in a climate of cost-cutting, Networks NSW boss Vince Graham instead called for unions to be transparent on internal executive remuneration.

Mr Graham's spokesman stated salary increases for all Essential Energy managers and award employees had been frozen since July 2014.

"The NSW Government's Wages Policy was strictly applied to Essential Energy salary reviews in 2014-15 and remuneration paid to senior executives reflected their responsibilities in containing increases in electricity network charges to CPI or below, and maintaining a safe and reliable electricity supply for customers in regional and rural NSW," the spokesman wrote.