Resch, Gustav, Hans Auer, Michael Stadler, Lars Henrik Nielsen, and John Twidell. Pushing a least cost integration of green electricity into the European grid, GreenNet. Dynamics and basic interactions of RES-E with the grid, switchable loads and storages, work package 1. 2003.
Auer, Hans, Michael Stadler, Thomas Schuster, Hans Taus, Lars Henrik Nielsen, John Twidell, and Derek Jan Swider. Pushing a least cost integration of green electricity into the European grid, GreenNet. Cost and Technical Constraints of RES-E Grid Integration, Work Package 2. 2003.