Update:
As you can probably tell by the fact that this modpack hasn't been updated since 2017, this is no longer an active project. That being said, I (jdawg3636) still make many Voltz-inspired modpacks for more modern versions of the game. Join my Discord server for more info, as well as for access to server files for some of my older packs (including this one).
https://discord.gg/7wZzJTC
https://discord.gg/7wZzJTC
https://discord.gg/7wZzJTC

Original Description:

Wattz, inspired by the play style of the classic Voltz modpack, is an all-inclusive warfare experience including advanced machinery, missiles, and a little bit of magic. The pack is designed for a public server (Join [removed] for more info), but anyone can create and run a server of their own should they so choose. Notably absent mods from the original Voltz pack are Galacticraft and Atomic Science. Galacticraft was removed to prevent players from hiding themselves in other dimensions (particularly space stations), while Atomic Science was excluded because there is unfortunately no 1.7.10 version that we could find. Please let us know if there exists such a port.

Non-Curse Mods:

Mekanism by aidancbrady

Mekanism Generators by aidancbrady

Mekanism Tools by aidancbrady

DefenseTech by aidancbrady

Wattz

[DEAD] Voltz Engine

AE2 Stuff

Another One Bites the Dust

Applied Energistics 2

ArchitectureCraft

Balkon's WeaponMod

Baubles

BdLib

BetterFps

Big Reactors

Botania

Carpenter's Blocks

ChickenChunks

Chisel

CodeChickenCore

CoFH Core

CraftTweaker

Decocraft

Dense Ores

Ender IO