Rijksdienst voor Ondernemend Nederland · Publieke Dienstverlening Op de Kaart

Dutch source

Heat potential maps (WarmteAtlas)

Four map services from RVO's WarmteAtlas: the potential for underground heat and cold storage (WKO) per neighbourhood and municipality, biogas and woody biomass per municipality, a map of 2,283 business sites with their CO2 emissions for estimating residual heat, and a raster map of WKO potential in GJ per hectare per year. Mind the age: the neighbourhood and municipal figures are for 2014 (403 municipalities, the boundaries of that time) and the CO2 figures run to 2013. The dates on PDOK (2024 and 2025) are publication dates, not reference dates.

Energy Climate and environmentOpenAPIMap layerNetherlands · neighbourhood (2014 boundaries)

Up to date · updated in October 2025 · checked 17:23

Sites on the residual heat map by sector: most sewerage and wastewater treatment (832 sites), then other industry and chemical industry

Sites on the residual heat map by sector, November 2024, in sites. Total: 2,283; the largest 10 of 10 categories are shown. Sewerage and wastewater treatment is 36% of the total. The date is the publication on PDOK. The map is older: each site has CO2 emissions from 1990 to 2013; later years are missing.

Source: RVO, WarmteAtlas (potentiekaart restwarmte) via PDOK (OGC API) · opgehaald 25 oktober 2026Open the table Single block

What you can build with it1

ToolSolar panel check for your own roofType a postcode and house number and see how large your roof surfaces are, which way they face, how much sun falls on them and roughly what panels would yield, using open data from BAG, AHN, KNMI and RVO.4 sourcesAdvanced

What can you do with it?4 ideas

Getting started

Where could a neighbourhood switch to ground heat?

Each neighbourhood has the potential for open and closed WKO systems in GJ per hectare per year, next to household heat use. Compare the two. Use the figures as a first sketch: they are from 2014.

Getting started

Where is the residual heat?

The residual heat map has 2,283 business sites with sector, SBI code and CO2 emissions in 1990, 1995, 2000, 2005, 2010, 2012 and 2013. Most are wastewater treatment plants (832); the biggest emitter in 2013 is E.On on the Maasvlakte (7.2 megatonnes), followed by Essent Amer and Tata Steel IJmuiden.

Advanced

Biogas from manure and organic waste per municipality

Residual flows gives the biogas potential per municipality from liquid manure, arable residues and organic waste, in GJ per hectare of land. Highest: Renswoude, Boekel and Sint Anthonis (2014 municipalities).

Advanced

Then and now

Compare the 2013 CO2 emissions on the residual heat map with current figures from the Emissieregistratie. Which large emitters have closed since?

How to process it4 steps

Get neighbourhood figures
Each neighbourhood collection has the same fields: residents, dwellings, heat use and all potentials. At most 1,000 per page, the next link gives the following; 12,005 neighbourhoods.
```
https://api.pdok.nl/rvo/potentiekaart-omgevingswarmte/ogc/v1/collections/warmteopenwkobuurt/items?f=json&limit=1000
```
All residual heat sites
Two pages of 1,000 and a third of 283. The fields kgco2_1990 to kgco2_2013 are in kilograms; 0 sometimes means unknown (Shell Moerdijk has 0 in 2000).
```
https://api.pdok.nl/rvo/potentiekaart-restwarmte/ogc/v1/collections/liggingindustrieco2/items?f=json&limit=1000
```
Join to the 2014 CBS neighbourhoods
cbs_buurtcode_1 is the 2014 neighbourhood code (BU…) or municipal code (GM…). Join to the 2014 district and neighbourhood map, not the current one: many municipalities have merged since.
```
https://api.pdok.nl/rvo/potentiekaart-reststromen/ogc/v1/collections/totaalpotentieelbiogas/items?f=json&limit=1000
```

Counting with the WFS

Each API also has a WFS. resultType=hits returns the number of objects.

https://service.pdok.nl/rvo/potentiekaart-omgevingswarmte/wfs/v1_0?service=WFS&version=2.0.0&request=GetFeature&resultType=hits&typeNames=warmteopenwkobuurt

Interesting combinations

buurtcode (indeling 2014)

Potential versus current gas use

Join the WKO potential per neighbourhood to the average gas use from the CBS key figures. Use the 2014 CBS table for the same neighbourhood codes.

Combine with Key figures for districts and neighbourhoods

bedrijfsnaam en ligging

Which 2013 emitters still exist?

Look up the largest sites of the residual heat map in the Emissieregistratie and compare 2013 emissions with today.

Combine with Netherlands Pollutant Release and Transfer Register (Emissieregistratie)

Similar sources

Netherlands Pollutant Release and Transfer Register (Emissieregistratie)
Current emissions per sector and year; the residual heat map stops in 2013 but gives the location per company.
WN
WarmteAtlas Nederland not in the index yet
RVO's own map viewer, with more layers than PDOK offers.
Climate Impact Atlas (Klimaateffectatlas)
Maps of heat, drought and flooding; no energy potential.

What to watch out for

Old figures with a new date
The collections show updated 2024-11-21 (residual heat), 2025-06-26 (ambient heat), 2025-07-03 (residual flows) and 2025-10-16 (WKO potential). The content is older: field jaar is 2014 and the CO2 fields run to 2013. According to the NGR the WKO map was last revised on 25 May 2018.
Municipalities of 2014
The municipal collections have 403 municipalities, including Bedum, Maasdonk and Littenseradiel, which no longer exist. Do not join to the current municipal map.
No field descriptions
The collections' /schema gives only field names and types, no units or explanation. tj_warmte on the residual heat map is presumably heat in terajoules, but it is not stated.
Truncated names
Some text fields are truncated, such as the sector 'Riolering en waterzuiveringsinstallat'.

APIOGC WFS 2.0.0 · read 16 Oct 2026

StandardOGC WFS 2.0.0docs

Access no key

No key. Fees: none; access constraints: https://creativecommons.org/publicdomain/zero/1.0/deed.nl. from the description

Size2,283

features in restwarmte:liggingindustrieco2 tested

Formats

application/gml+xml; version=3.2text/xml; subtype=gml/3.2.1text/xml; subtype=gml/3.1.1application/json; subtype=geojsonapplication/json

Base URL

https://service.pdok.nl/rvo/potentiekaart-restwarmte/wfs/v1_0

Endpoints 5

GET?request=GetCapabilitiesservice description
GET?request=DescribeFeatureTypefields of a layer (XSD)
GET?request=GetFeaturethe features themselves, with geometry
GET?request=ListStoredQueriesstored queries
GET?request=DescribeStoredQueriesstored query details

Layers and projections

Ligging industrie en CO2restwarmte:liggingindustrieco2EPSG:28992, EPSG:25831, EPSG:25832, EPSG:3034, EPSG:3035, EPSG:3857, EPSG:4258, EPSG:4326

Filtering from the description

OGC Filter Encoding (FES 2.0)

PropertyIsEqualToPropertyIsNotEqualToPropertyIsLessThanPropertyIsGreaterThanPropertyIsLessThanOrEqualToPropertyIsGreaterThanOrEqualToPropertyIsLikePropertyIsBetweenPropertyIsNullEqualsDisjointTouchesWithinOverlapsCrossesIntersectsContainsDWithinBeyondBBOXDuring

Parameters 6

`typeNames`	which layer: restwarmte:liggingindustrieco2	from the description
`outputFormat`	e.g. application/json for GeoJSON	from the description
`srsName`	projection, e.g. EPSG:4326 for web maps (default EPSG:28992, RD)	from the description
`count / startIndex`	paging	from the description
`filter`	FES XML filter on fields or geometry	from the description
`bbox`	box in the chosen projection	platform

Fields 18 · restwarmte:liggingindustrieco2

Name	Type	Meaning
`geom`	geometrie
`gid`	integer
`nic`	integer
`bedrijf`	string
`sbiCode`	double
`sbi`	string
`doelgroep`	string
`subdoelgr`	string
`kgco21990`	double
`kgco21995`	double
`kgco22000`	double
`kgco22005`	double

Show all 18

Name	Type	Meaning
`kgco22010`	double
`kgco22012`	double
`kgco22013`	double
`tjWarmte`	double
`weergave`	double
`fuuid`	string

Limits and pitfalls

At most 1,000 features per request (CountDefault). from the description
Paging supported: count and startIndex (ImplementsResultPaging). from the description
In the WFS fields are named differently from the OGC API: tjWarmte and kgco22013 versus tj_warmte and kgco2_2013. tested
The four OGC APIs: potentiekaart-omgevingswarmte (8 collections), potentiekaart-reststromen (7), potentiekaart-restwarmte (1) and potentieel-warmte-koude-opslagsystemen (3), all under https://api.pdok.nl/rvo/. tested

Try it HTTP 200 · 291 ms · 16 Oct

https://service.pdok.nl/rvo/potentiekaart-restwarmte/wfs/v1_0?request=GetFeature&service=WFS&version=2.0.0&typeNames=restwarmte:liggingindustrieco2&outputFormat=application/json&srsName=EPSG:4326&count=1&propertyName=bedrijf,doelgroep,tjWarmte,kgco22013

{
  "type": "FeatureCollection",
  "name": "liggingindustrieco2",
  "crs": {
    "type": "name",
    "properties": {
      "name": "urn:ogc:def:crs:OGC:1.3:CRS84"
    }
  },
  "features": [
    {
      "type": "Feature",
      "properties": {
        "bedrijf": "Shell Nederland Chemie BV (Moerdijk)",
        "doelgroep": "Chemische Industrie",
        "kgco22013": 2372540000,
        "tjWarmte": 32218
      },
      "bbox": [
        4.562109291255243,
        51.68785345709976
      ],
      "geometry": {
        "type": "Point",
        "coordinates": "…"
      }
    }
  ],
  "bbox": [
    4.56210929125524,
    51.6878534570998
  ]
}

Shortened response, saved at harvest time. Click the URL for the real, current response.

Read from GetCapabilities: layers, projections, formats, filters, limit · DescribeFeatureType: fields of restwarmte:liggingindustrieco2. Labels: from the description stated in what the api itself publishes. tested from our own small call. platform applies to every api on this platform, per its documentation. experience learned while building open data index.

How to fetch it

curl "https://api.pdok.nl/rvo/potentiekaart-restwarmte/ogc/v1/collections/liggingindustrieco2/items?f=json&limit=5"

More from RVO in our index

84 datasets in data.overheid.nl, Nationaal Georegister. These changed most recently.

All about RVO

At a glance

Publisher: Rijksdienst voor Ondernemend Nederland (RVO), WarmteAtlas Nederland, via PDOK
Area: Netherlands
Finest detail: neighbourhood (2014 boundaries)
Period: cijfers 1990 tot en met 2014; gepubliceerd op PDOK 2024 en 2025
Refreshed: every few years
Access: Open
Free to use, no account
Format: API, Map layer
Licence: CC0 1.0 (omgevingswarmte, restwarmte, WKO-potentieel), Public Domain Mark 1.0 (reststromen)
Join keys: cbs_buurtcode_1 (BU… en GM…, indeling 2014)gemeentenaamcoördinaten
Website: pdok.nl
Listed: 16 October 2026

Status check

Result: Up to date
Method: nieuwste veld updated van de collecties in de vier OGC API's (publicatiedatum, niet de peildatum van de cijfers)
Source changed: 16 Oct 2025, 11:43
Response time: 67 ms

Not in the data?Request it under the Open Government Act (Woo) from Rijksdienst voor Ondernemend Nederland (RVO). The authority must decide within four weeks, extendable by two.