EthMod is a collection of small changes and balance tweaks, designed to enhance the Factorio experience while (mostly) maintaining the feel of vanilla.
Notably:

• Nerfs solar panels to incentivize using other power sources, without completely eliminating the use of panels as a mid-game green power source.
• Rebalanced Flamethrower turrets to make them less of an earlygame god-weapon; firing a turret for significant lengths of time is no longer basically free
• Adds Whuppee as an instrument for the programmable speaker (an obvious oversight on the devs part... ;)
• Removes that terrible, headache-inducing vignette effect on the zoomed-in map view introduced with the 1.1 update
• Adds additional fish

Old versions: https://mods.factorio.com/mod/EthPower
Discussion: https://discord.gg/297UcfZ
Audio Credits: Whuppee (https://www.twitch.tv/whuppee)