Processing Pipeline¶

Overview¶

Input → Cache Check → API Query → Parse Elements → Enhance → Output

Cache Check¶

CSV cache (fast) → Units cache → API cache → Fresh API query

Overpass Query¶

[out:json][timeout:300];
area["ISO3166-1"="DE"][admin_level=2]->.boundaryarea;
(node["power"="plant"](area.boundaryarea);
 way["power"="plant"](area.boundaryarea);
 relation["power"="plant"](area.boundaryarea););
out body;

Tag Extraction¶

Priority order for each field:

Fuel: plant:source → generator:source
Technology: plant:method → plant:type
Capacity: plant:output:electricity (parsed: 50 MW → 50.0)

Enhancement¶

Reconstruction: When plant lacks tags but contains generators, aggregate generator info.

Clustering: Group nearby solar/wind generators into farms (DBSCAN).

Capacity Parsing¶

Input	Output (MW)
`50 MW`	50.0
`1.5GW`	1500.0
`100kWp`	0.1