how much do orbital refinery help my economy ??

what does refinery quote means ??

Refinery quota refers to how many neighboring refineries are sending ships to collect ore from that asteroid.  It helps the metal and crystal income to have the quota maxed out, but going above three does nothing as far as I'm aware.

As for how much refineries actually help in-game, I couldn't say.  I'd hover your mouse over the metal and crystal income areas and see if the additional incoming amount per second is worth it to you.

As was mentioned, the "refinery quota" is the number of refineries that can work for a given extractor. If you put a refinery in range of an extractor (in its own gravity well, or one hop away), the refinery increases the extraction rate. You can add up to the quota and get a bonus for each one, past the quota they don't work anymore.

As for how effective refineries are... IMO, they're not worth spamming. You don't build a refinery everywhere. You certainly don't build several refineries everywhere. In a system with only one or two extractors, they're rarely worth it.

But because they also work on neighboring gravity wells, if you have a well that has several others connected to it, building 3 extractors in that one well will apply the bonus to all of them at once. In that case, they can make a real difference. Here's an example, where A B and C are all gravity wells with extractors.

A --- B --- C

In this case, the only place you want to build 3 refineries in B. Those three will cover A, B, and C, hitting the quota for all of them. Build no refineries in A or C.

If you build 1 refinery in each instead, B will hit quota, A and C will only be at 2/3 and you'll get reduced benefit despite spending the same amount to build the refineries.

Hope that helps.

Quota for neutral extractors is four, versus the three constructed refineries can support.

Refineries are optimal at locations with lots of phase lanes to nearby planets/neutrals, which are easier to find in larger maps.

yes it helped a lot ty guys ;)