1 and 3:
viewtopic.php?f=6&t=33385 Suggestion about a water pump.
- The disussion-thread that triggered this poll.
2 and 4:
viewtopic.php?f=80&t=21921 Poll: Should belts use energy (and Offshore Pumps etc...)
- Where the community polled in my opinion about the general topic of power usage for entites, that currently don't use power.
(it's also mentioned here: viewtopic.php?f=80&t=24061 New Types of Belts (And why they are NOT a Good Idea!) )
Deeper search around the offshore pump reveals astonishing-wise those threads:
viewtopic.php?f=6&t=27105 Conveyor Belts should require energy to function
Which resulted into:
viewtopic.php?f=6&t=21058 Conveyor belts optional using electricity
I think this is the most important, cause that suggestion comes from a developer:
6: Is from these ideas:slpwnd wrote:Yeah, pump running "for free" is a bit strange. We might do something about this. Maybe have it run on electricity but also put a small burner inside for the kickstarting.
The coveyor belts are moving "for free" because it is a very elemental building block in the game and we reckoned that it would be annoying to build electric poles everywhere.
viewtopic.php?f=6&t=5207&hilit=pump Early Power.
- where they suggested some kind of hand-pump
viewtopic.php?f=6&t=21982 Concept: Engine/Generator Modules for Machines
- where they suggested motors as modules.