 The Delaware SEU is registered as a non-profit, tax-exempt 501 (c)(3) entity.The Delaware SEU is operating and planning new rounds of the bond program.SEUs currently in practice in the U.S. are the Delaware SEU., the Washington D.C. SEU, the SCEF Program by the Sonoma County Water Agency (SCWA) in California, California’s Sustainable Energy Bond Program by CSCDA and FREE and the Pennsylvania Sustainable Energy Finance program (PennSEF) by the Pennsylvania Treasury and FREE.