EDF Hydro Engineering Centre... EDF Hydro Engineering Centre... Our 4 hydro-engineering service offerings are designed to meet your business and operating targets... Depending on your requirements, we can provide turnkey or customised services. Structures designed by the EDF Hydro Engineering Centre. -Hydro structures (dams, plants, service tunnels, penstocks, seawalls and intake structures) for hydropower generation or other purposes (irrigation, river flood protection, etc.