# Roughly how much does researching a BPO really cost in an NPC Station?

**URL:** <https://forums.eveonline.com/t/roughly-how-much-does-researching-a-bpo-really-cost-in-an-npc-station/420677>\
**Category:** Science & Industry\
**Created:** [September 15, 2023, 2:18pm UTC](https://forums.eveonline.com/t/roughly-how-much-does-researching-a-bpo-really-cost-in-an-npc-station/420677 "2023-09-15T14:18:43Z")\
**Posts on this page:** 1\
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**Author:** ![stefnia\_Freir](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/stefnia_freir/32/390048_2.png) [@stefnia\_Freir](https://forums.eveonline.com/u/stefnia_Freir)\
**Post date:** [September 16, 2023, 1:40am UTC](https://forums.eveonline.com/t/roughly-how-much-does-researching-a-bpo-really-cost-in-an-npc-station/420677/3 "2023-09-16T01:40:08Z")

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> [@Syzygium](#):
>
> Best is you look for a system with a SCI of 0.10 and then start a lot of long jobs at the same time.

There is none in HS since the last changes.  
Also remember that 1.5% surcharge is now applied.

> [@Excelsior\_Gokhan](#):
>
> I want to get a sense of how much researching costs in a npc station with a system index of 5.0.

depends on your BP EIV

cost to research ME10 = 2438.1×0.02×EIV×(index+1.5+0.25)/100 . 1.5 is surcharge, 0.25 is station tax ; 0.02 is activity multiplier; 2438.1 is lvl 10 multiplier (for ME=10 or TE=20)  
= 0.48762 × EIV ×(index+1.5+0.25)  
with index=5 it becomes  
= 3.3×EIV . EIV is an estimation of the price of the mats (but as shown in my post [Huge discrepancies in industry tax application](https://forums.eveonline.com/t/huge-discrepancies-in-industry-tax-application/420671) half of the BP have more than 50% difference between EIV and real cost)

Let’s take “supercapital construction facilities blueprint”. Its EIV is 52891564 (=52.9M) so the cost to research it to ME10 in a 5 index is 174.5M. if you research to 10/20 in a 5 ME/TE index then this consumes 350M  
If you research it in a 2.25 index it becomes 0.48762 × EIV ×4 = 1.95×EIV (and 3.9 EIV for both ME and TE)  
so for this specific BP it’s total 206M isk

basically you can consider it costs 6.6 times as much to research the BPO than to build an item in a 5.0% index station (though there are a lot of errors in the code of CCP)

A bit more complex would be EIV ×(index+1.75) (ignoring the 0.97 mult which is like a 1)  
Basically the lowest you can do in HS is 4×EIV

Another example : A Tatara has an EIV of 5.8B so running it in a 1% system before did cost basycally 5.8B while it costs now in the same system (which has reached 3% because CCP) 27.5B

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