2014 Budget – Sources: This is a pie chart showing the sources of revenues for the 2014 budget year, in millions. Customer revenues are $2,130.1 or 71% of the total budget. NYISO Market Revenues are $747.2 or 25% of the total budget. Investment Income is $27.8 or 1% of the total budget. Other Income is $75.4 or 3% of the total budget.