What is the easiest way to report a broken public electric vehicle charger so other drivers do not get stuck there?
Fan-out diagram
Seed → topic clusters → sub-queries, per model.
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence. 31 queries are still being classified.
What the models actually searched
Each model answered the query with its own web search. These are the searches it ran, matched to the closest simulated query.
- Open PlugShare · plugshare.com
- Report A Broken Charger · help.plugshare.com
- Submit Your Suggestions And Feedback! · help.plugshare.com
- How do I leave a driver tip in the ChargePoint app? · chargepoint.com
- Charging · tesla.com
- EVConnecticut · portal.ct.gov
Semantic map
Every query placed by meaning (EmbeddingGemma 2, 256-d). Shaded regions are topics, nearby points are near-paraphrases, and a circle's size is how often the query came back.
Queries
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
plugshare app report broken charger RELATED | Google ↗ AI Mode ↗ | The user wants to know how to use specific third-party apps like PlugShare to flag broken chargers. | — | how_to_steps | reporting via specific charging networks | 2x of 3 | |
electrify america vs chargepoint customer service report broken charger COMPARATIVE | Google ↗ AI Mode ↗ | The user wants to compare the reporting mechanisms across major charging networks like Electrify America and ChargePoint. | — | comparison_table | reporting via specific charging networks | 2x of 3 | |
who is responsible for fixing broken public ev chargers IMPLICIT | Google ↗ AI Mode ↗ | The user wants to understand who owns or maintains public charging infrastructure to know who to contact directly. | — | web_article | charging station repair responsibility | 2x of 3 | |
how to report broken public ev charger REFORMULATION | Google ↗ AI Mode ↗ | The user wants a direct and concise explanation of the steps required to report a malfunctioning electric vehicle charging station. | — | how_to_steps | general public charger reporting | 1x of 3 | |
how to report broken public ev charging station REFORMULATION | Google ↗ AI Mode ↗ | The user wants a direct restatement of the original query to capture standard matching web pages. | — | how_to_steps | general public charger reporting | 1x of 3 | |
how to report a broken public ev charger REFORMULATION | Google ↗ AI Mode ↗ | The user wants a direct and concise method for reporting a malfunctioning public electric vehicle charging station. | — | how_to_steps | general public charger reporting | 1x of 3 | |
plugshare report broken charger ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user wants to know how to flag a broken charger using the PlugShare app, which is widely used by EV drivers. | — | web_article | reporting via specific charging networks | 1x of 3 | |
who is responsible for fixing broken public electric vehicle chargers IMPLICIT | Google ↗ AI Mode ↗ | The user wants to understand who owns or maintains public chargers to know who to contact directly. | — | web_article | charging station repair responsibility | 1x of 3 | |
what to do when public ev charging station is out of order IMPLICIT | Google ↗ AI Mode ↗ | The user seeks general troubleshooting or guidance when encountering a dead public charger. | — | faq_page | troubleshooting out of order chargers | 1x of 3 | |
electrify america broken charger report fault ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user needs to know how to report a faulty charger directly to the Electrify America network. | — | how_to_steps | reporting via specific charging networks | 1x of 3 | |
chargepoint report broken station ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user wants instructions on reporting a broken ChargePoint public charger. | — | web_article | reporting via specific charging networks | 1x of 3 | |
best apps to check if ev charger is working RELATED | Google ↗ AI Mode ↗ | The user wants to find apps that both report broken chargers and show real-time station status. | — | review_roundup | status checking and reporting apps | 1x of 3 | |
electrify america blink evgo chargepoint support numbers ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user needs the direct contact information and support channels for all major US public EV charging networks. | — | faq_page | status checking and reporting apps | 1x of 3 | |
how to notify other ev drivers about broken charger RELATED | Google ↗ AI Mode ↗ | The user is looking for community-driven ways to warn other drivers about broken infrastructure. | — | forum/qna | warning other drivers directly | 1x of 3 | |
i drive an electric car and need a simple way to report dead charging posts without downloading new apps PERSONALIZED | Google ↗ AI Mode ↗ | The user is looking for a web-based or universally accessible way to report broken chargers without adding software. | — | checklist | warning other drivers directly | 1x of 3 | |
best app for reporting out of service ev charging stations PERSONALIZED | Google ↗ AI Mode ↗ | The user is looking for crowd-sourced platform recommendations specifically tailored for identifying and reporting dead chargers. | — | review_roundup | status checking and reporting apps | 1x of 3 | |
tesla supercharger report broken ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user needs to know how to report a broken Tesla Supercharger station. | — | faq_page | reporting via specific charging networks | 1x of 3 | |
can you call 311 for broken public ev charger RELATED | Google ↗ AI Mode ↗ | The user wants to know if municipal services can be used to report broken municipal or street-side chargers. | — | forum/qna | using maintenance hotlines and 311 | 1x of 3 | |
can you report broken ev chargers on google maps RELATED | Google ↗ AI Mode ↗ | The user wants to know if mapping applications like Google Maps allow users to flag broken charging stations. | — | faq_page | warning other drivers directly | 1x of 3 | |
best apps to check and report ev charger status COMPARATIVE | Google ↗ AI Mode ↗ | The user wants to compare different applications used for monitoring and reporting EV charger statuses. | — | review_roundup | status checking and reporting apps | 1x of 3 | |
report broken ev charger to department of transportation ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user wants to know if state or federal transport departments handle broken EV charging infrastructure. | — | pdf_whitepaper | contacting government transport agencies | 1x of 3 | |
what to do if ev charger fails to charge car REFORMULATION | Google ↗ AI Mode ↗ | The user wants troubleshooting steps before deciding whether the charger is permanently broken and needs to be reported. | — | checklist | troubleshooting out of order chargers | 1x of 3 | |
can you call customer service for broken public ev charger RELATED | Google ↗ AI Mode ↗ | The user wants to know if phone support is available for reporting dead public chargers. | — | faq_page | using maintenance hotlines and 311 | 1x of 3 | |
what to do when public ev charger is out of service REFORMULATION | Google ↗ AI Mode ↗ | The user wants general guidance on troubleshooting and reporting an inactive public charging stall. | — | web_article | troubleshooting out of order chargers | 1x of 3 | |
ev charger out of order etiquette and reporting RELATED | Google ↗ AI Mode ↗ | The user wants to know best practices for leaving notes or notifying other drivers when a charger fails. | — | forum/qna | troubleshooting out of order chargers | 1x of 3 | |
checklist for reporting broken ev charging stations PERSONALIZED | Google ↗ AI Mode ↗ | The user wants a quick checklist of details (like station ID and error codes) needed before reporting a broken charger. | — | checklist | general public charger reporting | 1x of 3 | |
ev charging station maintenance hotline numbers ENTITY EXPANSION | Google ↗ AI Mode ↗ | The user wants direct phone numbers for major charging network customer support lines. | — | product_spec_sheet | using maintenance hotlines and 311 | 1x of 3 | |
government agency to report unsafe public ev charger IMPLICIT | Google ↗ AI Mode ↗ | The user wants to know if there is a regulatory or municipal agency responsible for inspecting and maintaining public charging stations. | — | web_article | contacting government transport agencies | 1x of 3 | |
how do other ev drivers warn people about broken chargers IMPLICIT | Google ↗ AI Mode ↗ | The user wants to learn community best practices for warning fellow drivers about dead chargers. | — | forum/qna | warning other drivers directly | 1x of 3 | |
ev charging station error codes and reporting IMPLICIT | Google ↗ AI Mode ↗ | The user seeks information on identifying charger error codes to report them accurately. | — | glossary/definition | warning other drivers directly | 1x of 3 | |
evgo vs blink network reporting broken charger process COMPARATIVE | Google ↗ AI Mode ↗ | The user wants to compare the specific reporting workflows of EVgo and Blink charging networks. | — | comparison_table | reporting via specific charging networks | 1x of 3 |
Passes
Does another pass still surface new queries? A flattening curve means the fan-out has stabilised.
| Model | Pass | Target | Generated | Seconds | Tokens (in / out) | Notes |
|---|---|---|---|---|---|---|
| gemini-3.5-flash-lite | 1 | 10 | 10 | — | 917 / 1,277 | |
| gemini-3.5-flash-lite | 2 | 12 | 12 | — | 917 / 1,470 | |
| gemini-3.5-flash-lite | 3 | 12 | 12 | — | 917 / 1,520 |