Is there anyway to change the power requirements in half or more? I found it a bit to much power for a small server that's going end up wiping at over 200mil EU of power in just 24 hours for a 30x30 cube plot.
On Avg runs 117.92 EU/t so actually my math seems almost exact hehe 203,765,760 per 24 hours 
ahh seems like forcefieldblockcost= does it but you can't set any 0.value nor 001 or something silly it seems to only accept 1 and more 
So after testing this mod out on my server we come up with the following issues:
1) It uses a bit to much power for a server that intends to use this at property protection and sort of has to use it.
2) The forcefield can be easily exploit in many ways especially lag block breaking the shield.
3) Breaking the forcefield and placing a nuke inside it will become a very common practice since you can do this even with a smooth connection to a server.
4) The mob killer feature not sure if it is intended for farming mob drops or that was a by product but it can cause a lot of item drops overtime if you cover a large area.
Suggestions:
1) Let us configure the power usage using decimal values.
2) Do what bukkit and most protection mods do. Prevent other players from breaking and building inside a protected area. I mean its suppose to be protected anyways right so why allow them to have 100 ways to exploit it. Rather then be a game of exploit let it be a game of nuking down the shield hehe.
3) Same as 2 and there is a ton of source code out there with examples of this kind of protection. Don't forget spawn is protected like this all you do is prevent block placement. Now you might have issues with mods like RP and such but even them I think can work inside if you can tell the difference between a player and a machine hehe.
4) Add the ability in the config within the shield to prevent mobs from spawning
These are some of my ideas I guess at this point the mod is fun but is way to exploitable and not fun in the way that it just ruins all other fun heh.
If I can at least cut down the power say 10x and it sounds like a lot I can setup a 2nd forcefield and place it like 6-7 blocks outside the first one. That will help prevent the breaking and placing of 2 nukes.
does 50% more dmg, can destroy Quantum Armor like Nano Saber with Nano Suit and you need a Tesla Staff in the Crafting Recipe. Maybe needs 10.000 EU per Hit or something like that 
Kind nice to earn that feature hehe
not very balanced