the project #mapYourGrid has 7.3 million km of lines mapped in #openstreetmap thanks to professionals and all other contributors.
Andreas Hernandez DenyerAndreas Hernandez Denyer, Energy systems modeller | Founder of Climate Club:
The worldâs first open and free database which tracks the high-voltage line length of almost every countryâs grid is finished, which shows a significant underestimation of global line lengths.â
MapYourGrid and Open Energy Transition developed a bottom-up approach by going through reports, datasets, geospatial files, and websites of every countryâs transmission system operator (TSO), electricity regulator, ministry of energy or other sources.
Why?
âĄïž 1. Data such as these are locked behind large paywalls, which means that the â6 million kilometresâ of global transmission grid stated in the IEAâs 2025 World Energy Outlook cannot be easily verified or understood. Furthermore, our approach allows for people to add to the open database, comment if there are mistakes, update the data, and validate it since all sources are indicated. Open data and Open Source allows for stringent validation, and can guarantee higher levels of quality.
âĄïž 2. We wanted to know how much of the grid is mapped in OpenStreetMap, globally, per country and per voltage level. Being able to compare this with official data, now allows the community and MapYourGrid to see the coverage missing (or not!) in detail, and to attribute a quality score to a countryâs grid.
So, in total this gives us a high-voltage grid estimate of at least 7.3 million circuit kilometres. Thus, we now estimate that around 75% of the worldâs high-voltage grid is mapped in OpenStreetMap (rough estimate).
Find our Global Transmission Length Index spreadsheet here on our website:
https://mapyourgrid.org/global-grid-data/#__tabbed_1_5
Learn more about the scope, methodology and the details in our blog, and in the database itself:
https://mapyourgrid.org/blog/20251128-LineLength/
As I once said, Turkmenistan is the enemy of âcontrol+f= âkmââ.
#opendata #opensource #energy #transition #tht #electricity #crodsourcing #global