← Back to map

Frequently Asked Questions

Answers to common questions about BESS World Map, its data, and how to use it. For licensing, privacy, and company details, see the Legal & Data Licence page.

What is BESS World Map?

BESS World Map is a free, interactive map for exploring battery storage sites mapped in OpenStreetMap (OSM) worldwide. Here, BESS stands for Battery Energy Storage System.

You can use it to discover battery storage sites near a location, explore the global distribution of battery storage, or inspect available plant attributes such as name, operator, storage capacity, and commissioning date. For more technical work, you can download the battery storage sites currently visible on the map or the complete global dataset in several formats for your own analysis.

Attribute availability and data quality vary by region because the map is based on volunteer-contributed OpenStreetMap data.

Where does the battery storage site data come from?

Battery storage site locations and attributes are sourced from OpenStreetMap, queried via the Overpass API, and reformatted for display in this map. The data reflects what OSM contributors have mapped, so coverage, completeness, and detail vary by region.

How often is the data updated?

The map uses a regularly refreshed snapshot of OpenStreetMap data.

Last refresh: Mon, 09 Nov 2026 04:41:55 GMT.

How many battery storage sites are shown on the map?

The current worldwide dataset contains 1,341 battery storage sites.

The total number is also shown at the bottom right of the map. The same panel also shows how many battery storage sites are currently visible in your map view. This number changes as you pan or zoom the map.

Which data is shown on the map?

The map is designed to show OpenStreetMap node, way, and relation features tagged plant:source=battery worldwide - i.e. utility-scale battery storage sites, not household-scale batteries. For area features the map uses the geographic center of the feature as the marker location.

If a battery storage site is selected, its information box shows a limited set of attributes:

Attributes displayed in the battery storage site information box
Attribute OSM Tag Available Notes
Name name 77% Typically the local site name
Operator operator 71% Typically the site operator
Capacity plant:storage 46% Unit typically directly provided (e.g. MWh/kWh/GWh); often just "yes" when a numeric value is not known
Start date start_date 51% Format varies (year only, or a full date)

The Available column in the table above shows how many battery storage sites have a value. If you think you can provide missing information for a site, see below.

OpenStreetMap features can carry many other tags beyond this list (for example construction details, data sources, or Wikidata links). Those additional tags are not shown, but they can be viewed directly in OpenStreetMap via the view/edit in OpenStreetMap link.

Does the map also include small home batteries?

Not intentionally. BESS World Map focuses on utility-scale and larger site-level battery storage systems tagged as plant:source=battery in OpenStreetMap. Small residential batteries and other device-level storage entries are outside the intended scope of this map.

Can I share a map view with someone else?

Yes. Use the Share button to create and copy a link to your current map view. Anyone who opens the link will see the same map location, zoom level, and selected map style, whether it's the standard map, satellite imagery, topographic, or minimal view.

You can also share one specific battery storage site. Select it on the map and use the Share battery site button at the bottom of its information box. The copied link carries that site along with the map view, so whoever opens it arrives at the same place with that site's information box already open. The Share button described above behaves the same way while an information box is open.

Can I download the battery storage site data and what can I use it for?

Yes. Use the download button on the map to export either the battery storage sites currently visible in the map view or the complete global dataset.

Exports are available in several formats:

Each battery storage site includes its coordinates and the standardized attributes available for that record, such as name, operator, storage capacity and commissioning date.

All exported battery storage sites currently come from OpenStreetMap. Each record carries a source field identifying OpenStreetMap and an id containing its original OSM node, way or relation ID, so it can be traced back to the source.

The exported data can be used for exploration, research, geographic analysis, data-quality checks and visualisation, as well as other applications permitted by the Data Licence & Terms. If you publish, redistribute or build products using the dataset or extracts from it, please also follow the attribution requirements.

The dataset is not a certified battery storage site register and may be incomplete, inaccurate or outdated. It should not be used as the sole basis for safety-critical, regulatory, contractual, navigation, aviation, investment or operational decisions.

Can I use this data for my own project?

Yes. The underlying OpenStreetMap battery storage site data is available under the Open Database License (ODbL) v1.0. It may be used, copied, modified, and shared, including for commercial purposes, subject to the ODbL and applicable OpenStreetMap attribution requirements.

See the Data Licence & Terms for details. The website, its design, application code, data pipeline, and branding are not covered by the ODbL.

If BESS World Map or its data export is useful to you, we appreciate a link, acknowledgement, or recommendation to others who may benefit from it.

I miss a battery storage site or found one with incomplete details. How do I fix it?

Because the map is based on OpenStreetMap data, corrections should be made in OpenStreetMap.

From BESS World Map every site is linked to the respective item in OpenStreetMap, facilitating the correction of missing or wrong details. You can use the view/edit in OpenStreetMap link in the battery storage site information box to open the site in OpenStreetMap. There you can update the information yourself, or use OpenStreetMap's community channels if you need help. Once an edit is published in OSM, it should appear here after the next data refresh.

Is the battery storage site data accurate and complete?

The map is designed to make OpenStreetMap battery storage site data easy to explore, but coverage, positional accuracy, and attribute completeness vary by location. Data can be incomplete, outdated, incorrectly tagged, or contain errors.

Do not use this map or its exports as the sole basis for safety-critical, regulatory, contractual, investment, or operational decisions. Verify important information against authoritative sources.

How can I support this project?

BESS World Map is free to use and is built on data contributed by the OpenStreetMap community. There are several ways you can help:

When you reuse OpenStreetMap data, please also comply with the applicable OpenStreetMap attribution and ODbL requirements.

Who operates this website?

BESS World Map is operated by ventodyne GmbH, a Munich-based company working on wind farm SCADA diagnostics and wake-steering wind farm control solutions.

Contact and company details are available in the Impressum.

Is this website free to use?

Yes. Viewing the map and exporting battery storage site data are free and do not require registration or an account.

Does this website use cookies or track me?

See the Privacy information for details on cookies, analytics, and hosting.

← Back to map