Environmental web design & use tips:
* Wherever possible, choose text. Text is by far the most efficient (and as I like to illustrate, universal) medium.
* Make sure everything on your site has a good reason to be there. Avoid frameworks to further this.
* Compress your images & video.
* If you love something, download it. Buy it. Avoid advertising.
* Make sure HTML & CSS downloads fast.
@alcinnz operating the radio is the second most expensive part about running a mobile device (be it a laptop or a phone), after the display, in terms of power consumption
@alcinnz check out Carroll, Aaron, and Gernot Heiser. "An analysis of power consumption in a smartphone." USENIX annual technical conference. Vol. 14. 2010.
@sir Will do!
Huh, "World Wide Waste" stated that an average phone takes 12s to process the JS on a typical page. In that case I wonder if the radio the most expensive step...
@alcinnz eh... probably not
> I want to share with you my simple two-step secret to improving the performance of any website.
> 1. Make sure that the most important elements of the page download and render first.
> 2. Stop there.
@avery Ah yes! That's one of my favourite talks too!
I've got his nutrition pyramid from that talk as the banner image on this account.
@alcinnz Also take in consideration CO2 (carbon dioxide) emissions.
There are some usefull resources mentioned.
@alcinnz Download everything!
@alcinnz I work a lot in datacentres where server-side power efficiency is a big consideration.
But client side is probably more important because it can't be "greened" as easily as a *&^%-off big 11kV feed.
Server-side energy from offshore wind via the grid, or client-side energy from a diesel generator set?
A *large* phone would be 100mm square, so about 1W - and it would be in a pocket most of the time. If a full charge is (say) 5V * 3000mAh, that's about 15Wh, so 15 hours in good daylight for a full charge. Limitting factor is the incidence of solar energy on the phone's area, not technology.
@peexea @dch @alcinnz Solar cells are typically 15-20% efficient, so the downrate from 1KW incident to about 100W generated allows for both this and non-perpendicularity.
But these figures are very rough - corrections welcome!
Alas, the takeaway is that while solar will power a calculator, it won't power your dog and bone.
@alcinnz `optipng` tbh only takes off a few percent usually. `jpegoptim` often does better, often a lower quality like 90% is not super-noticeable.
For people who care about, support, or build Free, Libre, and Open Source Software (FLOSS).