If you just want to know the formula scroll down if you want to see whats behind it read it all.

So now some maths on breeder efficiency. Let say we take this design: http://www.talonfiremage.pwp.b…i=1m101010114010101001019 (note: this is the max eff you can get with a breeder)

Whats the max efficiency boost in percents @6000 and @9000 heat taking into account breeders also produce eu.

1 uranium ore = 8 Near depleted cells

@6000 heat

To get the reactor started we need 1 uranium cell and 4 depleted cells. This cost 1,5 uranium in total. In return you get 4 uranium cells and 2million eu. Do note the fact breeder always nets a 2 million eu for each cycle means lower efficiency reactors will get a higher boost in %.

Lets say we use this reactor to make eu:

http://www.talonfiremage.pwp.b…1k101010037ps011111101110

Specs:

3 eff = 6 million eu/uranium cell

4 uranium cells/cycle (ok this does not change the maths but easier example)

With the breeder you make 4 uranium with 1,5 uranium ore. This means the 1,5 uranium ore made 4*6+2= 26 million eu. This means for each uranium ore you find you get 17,33 million eu. This is a efficiency of 8,67.

BUT as most here will know uranium cells have 25% chance to turn into a near depleted uranium cell. So the actual efficiency is even higher. Whats the worth of 1 near depleted uranium cell? Its 1/8 of a uranium ore. In this example its 17,33/8 = 2,16625 million eu. Its easy to figure out what the gain is after 1 cycle. But whats the gain after 10 cycles? or 100 cycles, or endless cycles? The chance that a uranium cell turns into a near depleted cell is 25%. The chance this happens again with the same uranium cell is (0.25^2)*100

= 6,25%. The formula to calculate the chance is 0.25^cycle. After 2 cycles the gain is (0.25^1 + 0.25^2)*100 = 31,25%. Now we want to know what the gain is after x cycles. As you repeat this with more cycles the gain will come closer and closer to 33,33333333%. Thus the gain is 33,33333333%. So this gives us a extra 2,16625/3 = 0,722 million eu or 0.36 more eff making the total eff 9.03.

In the end the formula for total eff @6000 heat is this: Total eff = ((8*Reactor eff+2)/1,5)*(0.5+(1/48 ))

If you want eff boost in percents do this (Total eff/Reactor eff)*100

@9000 heat

This formula is almost the same but you only need 1 uranium ore to make 4 uranium cells thus the 1,5 in the formula changes to 1. Also the uranium cell used to breed only produces half the eu per breeding cycle (9000 heat means half the time). So the formula is now: Total eff = (8*Reactor eff+1)*(0.5+(1/48 )). In this example it would mean total eff is 13,02.

If you want eff boost in percents do this (Total eff/Reactor eff)*100

I hope i didnt do any miscalculations but the answers seem to be realistic.

**Conclusion:**

Total eff@6000 heat = ((8*Reactor eff+2)/1,5)*(0.5+(1/48 ))

Total eff@9000 heat = (8*Reactor eff+1)*(0,5+1/14)

Eff boost in percent = (Total eff/Reactor eff)*100