GridPoint Inc., a Washington, D.C.-based provider of energy management products, has raised $16.5 million in additional Series D funding. The round total is now $48.5 million, with Goldman Sachs and Susquehanna Private Equity Investments serving as co-lead investors. Other participants included New Enterprise Associates, Perella Weinberg Partners and Robeco. GridPoint has now raised $88 million in totalequity funding.www.gridpoint.com