(okay, as you wish, I have One more suggestion) Greetings to true pro modder!
Please add ability to change in mod settings power Watts and amount of pumped water for Tier-0 (as base recipe),
and then Power coefficients and Pumped speed coefficients for all other tiers, so player can write his own values in [] at mod settings:

Offshore Pump 0 power = [ 600]*KWatts (default is 600)
Offshore Pump 0 speed = [ 300]/s (default is 300)

Offshore Pump 1 power = [ 2]times as Tier-0
Offshore Pump 1 speed = [ 4]times as Tier-0

Offshore Pump 2 power = [ 3.3]times as Tier-0
Offshore Pump 2 speed = [ 8]times as Tier-0

Offshore Pump 3 power = [ 4.7]times as Tier-0
Offshore Pump 3 speed = [ 12]times as Tier-0

Offshore Pump 4 power = [ 6]times as Tier-0
Offshore Pump 4 speed = [ 16]times as Tier-0

I am actually onto this, but apparently i have no way of passing a variable to the locale files (though i might be wrong) as the numbers of minimum and maximum consumption are "hardcoded" into the locale files due to the nature of the workaround i used to make offshore pumps draw power, so, i don't guarantee i can do it, but i'll try.
EDIT: I think i found a serviceable solution

(your other request will be implemented in the next version as i already wrote the code and it also applies to angel ground water pumps and optional water pumpjacks)

This is absolutely AWESOME! Thank you kind sir!

Actually i have pretty bad news, i found a way to do everything you suggested (and it's actually working codewise) but it is also screwing things up in certain scenarios for example:
- The boilers won't be able to jumpstart the pumps if i increase the actual wattage over what i already set (even 10w)
- The values of min and max consumption in the description would be slightly off for some pumps (0.01 either MW/kW) as the way i had to make it is EXTREMELY hacky and i had to implement a calculation system which obviously has a slight margin of error

TBH i don't really like botched things, so here it comes, i don't think i will implement this at all as the "gain" is way beyond the "pain", yet, i was thinking of adding an option to make the first pump either electric/burnable via setting (as i've never seen a pump running on plain coal...)