1) Build lots and lots of solar panels.
2) Convert energy.
3) Never build anything that uses BC energy other than a quarry.
This is exactly why I never liked any form of power converters. It always boils down to figuring out one method that's the most efficient or simplest to build, generating that power, and converting to everything else. Vast parts of many mods are made completely obsolete. In my opinion, any conversion should always incur huge losses or be otherwise unfavorable. Take the Electrical Engine from Forestry for example: it is fine for a "I need to run this one liquid transposer in my IC room" scenario, but it's too slow to power complex BC machinery. I fear that the magma crucible is allowing for the opposite: run a boiler or biofuel engines, convert to lava, convert to IC power, skip any and all independent EU generation.