The pilot of an experimental Epic LT experienced a complete electrical failure during climb; resulting in a rough running engine. He declared an emergency and returned to his departure airport.

Narrative

I took off from ZZZ and lost electrical power almost immediately during the climb. The engine started to shudder and I noticed the voltage was only at 15 volts. My directional gyro on the EFIS was not providing true heading; so I asked Departure for turn guidance; which they provided. The engine continued to shudder and I feared that I might lose my engine; so I stated it was an emergency and I needed to land immediately. Center turned me back toward ZZZ and had me descend to 3;000 FT. I entered the IMC at approximately 4;500 FT with course guidance from Center. I came out of the clouds at around 3;000 FT and saw the airport at my 12 o'clock position and 7 miles. I attempted to lower the gear and flaps but had insufficient electrical power to operate both at once. I flew over the field and received a visual from the ground that 2 of the 3 wheels were down. By the time I had completed a go-around; I had 3 greens but no flaps. I came in with extra speed and landed without incident. It took a few moments to compose myself as well as the passengers (my family). I exited the airplane and called Center to cancel the flight plan and let them know that we had landed safely.