Why SEER®? Neptune’s SEER® (Statistical Evaluation for the Enhancement of Revenue) analysis tool is specifically designed to identify Non-Revenue Water at the water meter level.SEER helps highlight meter inaccuracies and identify meters to repair or replace. By projecting the return on investment (ROI) for each meter replacement, SEER generates a prioritized list of meters to address.A typical utility’s large commercial and industrial water meters make up less than 10 percent of its meter population – but between 40 and 60 percent of its revenue. SEER can show how to prevent greater losses of money and water by replacing even a small number of large meters.