Electricitymap-contrib: Split generation by island for Canaries

[strassburger]

Is it possible to split canary island into the islands.
they are really working for there own.
see also:
http://ree.es/en/activities/canary-islands-electricity-system/canary-electricity-demand-in-real-time

El Hierro is very impressiv: rigth now 100% RE / 0 CO2
source:
https://demanda.ree.es/movil/canarias/el_hierro/total

[strassburger]

"inside look" from outside to El Hierro "Gorona del Viento":
http://euanmearns.com/el-hierro-portal/

[systemcatch]

A quick look at this one reveals that the page makes a request to https://demanda.ree.es/WSvisionaMovilesCanariasRest/resources/demandaGeneracionCanarias?callback=angular.callbacks._2&curva=EL_HIERRO&fecha=2017-10-31 which then returns json data for each 10 minute interval. It shouldn't be hard to write a parser for this.

[jarek]

As was mentioned in the Slack channel, the current parser for Canary Islands uses https://pypi.python.org/pypi/reescraper which already splits up the data by island. Unfortunately our map data source (Natural Earth) doesn't break apart the islands, so integration on the map side is a bit tricky.

It should be feasible to just use the currently generated GeoJSON (/web/app/world.json) and extract the polygons for all the islands, then split it into separate islands manually - they're already separate polygons for each island on the map.

[systemcatch]

I've managed to separate out the individual Canary Island's from the natural earth .shp files which I'll submit a PR for soon. @blackleg you should be able to return data by Island rather than in aggregate now.

[hectorespert]

@systemcatch Great work. :+1:

[strassburger]

Thanks very much you all.

[hectorespert]

[hectorespert]

The pull request: https://github.com/tmrowco/electricitymap/pull/1028