Board Thread:Questions and Answers/@comment-10940479-20130616194325/@comment-5627887-20130618183435

I only built that to make it look pretty, well, more than one... You can make do with a ring of mirros and one boiler with no problems, especially with a few Battery Blocks to store enough power to do light or medium work overnight, though running several Grinders at once (as I found) meant I needed to expand both storage and power generation. There is a Charge Meter that you can use to measure Factorization machines or wire to see if charge is being produced, works on the Steam Turbines.

I believe that I read on the Technicpack forums that now they've removed RedPower 2 and Industrial Craft 2, they won't ever be putting them back into any new packs (such as the new Tekkit, etc), however there is a slim chance that if they ever update properly we might see a 1.5.1 update to Tekkit Lite, however I am doubtful, the IC2 mod author is inactive and the only updates are community-based, and RedPower's author is apparently around but extremely slow or unable to produce timely updates.