According to National Grid's latest financial reports the company's current revenue (TTM ) is NZ$39.88 Billion. In 2007 the company made a revenue of NZ$26.51 Billion an increase over the revenue in the year 2006 that were of NZ$23.10 Billion. The revenue is the total amount of income that a company generates by the sale of goods or services. Unlike with the earnings no expenses are subtracted.