Cables Energy Loss?

[infernalinfernos]

So how do they work?
As far as I know, a glass fibre cable, for example, does not have any loss of EU as long as it is shorter than 40 blocks, and affects each packet, meaning that a larger packet is much more efficient for sending EU over long distances.

 

[mushroom taco]

So how do they work?
As far as I know, a glass fibre cable, for example, does not have any loss of EU as long as it is shorter than 40 blocks, and affects each packet, meaning that a larger packet is much more efficient for sending EU over long distances.

Glass fibre cables have a 0.025 eu loss every block.
So technically, you lose 1 eu the first block it travels (ex: if you send out 128 eu per tick you will have 127.975 on the first block).

Oh hey, i'm a regular member now.

 

[namiasdf]

Each packet loses that amount.

ex1.)
1. Let's say you have a glass fibre cable that's 41 blocks long, the end is connected to an MFSU.
2. Let's say that you have an ultimate solar panel providing 512 EU/t during the day.
3. The panel will be sending 512 EU packets every tick along that cable. The MFSU will receive a 511 EU packet.
4. The MFSU will charge at a rate of 511 EU/t.

ex2.)
1a. Let's say you have a glass fibre cable that's 41 blocks long, the end is connected to an MFSU.
2a. Let's say you have 4 hybrid solar panels providing 4x64 EU/t during the day.
3a. The panels will be sending 4x64 EU packets every tick along that cable. The MFSU will receive 4x63 EU packets.
4a. The MFSU will charge at a rate of 508 EU/t.

It just means that higher voltages will allow you less energy loss. The most efficient way to transport energy is through glass fibre at a HV, unless you are using super conductors. If you can afford those, all of the above does not matter.

 

[Moasseman]

Glass fibre cables have a 0.025 eu loss every block.
So technically, you lose 1 eu the first block it travels (ex: if you send out 128 eu per tick you will have 127.975 on the first block).

Oh hey, i'm a regular member now.

False. As long as the cabling is below 40 units long, there will occur no energy loss (the energy loss happens at the 40th piece of cable) [I assume we're using only glass fibre cable]


V: This is exactly what I based my answer on =D

 

[Saice]

And remember you can reset the loss by using something like a bat box or transformer to basically pick up the packet before it has loss and then reship it out restarting the distance traveled.

 

[Shakie666]

False. As long as the cabling is below 40 units long, there will occur no energy loss (the energy loss happens at the 40th piece of cable) [I assume we're using only glass fibre cable]

This. The loss is rounded up, not down, meaning you wouldn't lose any eu at all until 40 blocks have passed. This means you can get rid of any luss by placing a transformer every 39 blocks; this resets the loss 'counter' and you lose nothing (it also used to happen with mixed wire types, though it seems to have been patched since then).

EDIT: Ninja'd by a sheep shoop. Goddammit, ninjas come in all guises these days

 

[mushroom taco]

And remember you can reset the loss by using something like a bat box or transformer to basically pick up the packet before it has loss and then reship it out restarting the distance traveled.

Ah... that would explain how that worked. I read that on the tekkit wiki about a year ago and wondered how it worked.

 

[infernalinfernos]

Aha! thanks all of you guys for the great answers .

 

[ShneekeyTheLost]

My blog has a QuickTip on this very topic. Check it out in my sig.

In effect, there's two things to consider with IC2 wiring: Packet Size, and Rate of Loss.

With Glass Fibre Cable, your maximum packet size is 512. You can have many smaller packets running through it, even if the total exceeds 512/t, but the largest without burning out the cable is 512.

Rate of Loss is *PER PACKET*. This is where higher voltage sees a significant rate of return, because the individual packets can be so much larger than a one or two EU ding is scarcely noticable. For Glass Fibre Cable, EU loss is 1 per 40 blocks.

Therefore, if you had 100 solar panels in a solar flower configuration, wired up with glass fibre cable running 41 blocks to a BattBox, you would end up with 0 energy into the battbox, because each solar panel generates 1 EU/t, and when it passes 40 blocks, that 1 is lost for every one of those 100 packets. However, if you had them feed into a batbox before you hit the 40 block mark, THEN went 41 blocks to an MFE, you would lose far less. Each packet is 32 for LV which the battbox outputs. So that would be 4 packets (three full ones at 32, and one tiny packet at 4 EU), so the EU loss would only be 4. If they all went directly to an MFE before 40 blocks, then it would output MV or a max of 128 which then went 41 blocks to an MFSU, and you would only experience a 1 point loss out of your 100 energy.

 

[reddvilzz]

Well i can't find your signature sir?

 

[namiasdf]

Each packet loses that amount.

ex1.)
1. Let's say you have a glass fibre cable that's 41 blocks long, the end is connected to an MFSU.
2. Let's say that you have an ultimate solar panel providing 512 EU/t during the day.
3. The panel will be sending 512 EU packets every tick along that cable. The MFSU will receive a 511 EU packet.
4. The MFSU will charge at a rate of 511 EU/t.

ex2.)
1a. Let's say you have a glass fibre cable that's 41 blocks long, the end is connected to an MFSU.
2a. Let's say you have 4 hybrid solar panels providing 4x64 EU/t during the day.
3a. The panels will be sending 4x64 EU packets every tick along that cable. The MFSU will receive 4x63 EU packets.
4a. The MFSU will charge at a rate of 508 EU/t.

It just means that higher voltages will allow you less energy loss. The most efficient way to transport energy is through glass fibre at a HV, unless you are using super conductors. If you can afford those, all of the above does not matter.