If the Energypack thing gets fixed at some point, Lithium Batteries (which can be made with Battery Alloy and no aluminum) still give 1.6m EU when you fill a charger with them. After you get a Blast Furnace, a charger of 16 Lithium Batpacks can hold up to 9.6 million EU.
The Poor Man's MFE, which outputs 512 EU/t due to E-net changes. Very bronze-intensive, however.
how to raise the voltage? whats e-net changes?