What the data for this use case looks like
PV yield-related data is primarily sourced from publicly available settlement data from provincial power trading centers and locally collected data from photovoltaic power station operation and maintenance systems. Full data for the previous day is updated each early morning. Each data entry uses structured JSON format, including fields such as unique power station identifier, installed capacity, daily irradiation, daily grid-connected power generation, daily settlement electricity price, daily operating cost, and daily total revenue. Each field has a clearly defined physical unit with no ambiguous descriptions. Data field naming rules are consistent across all sources, so no additional conversion is required before use.
Constraints imposed by these characteristics on tool calling and plugins
Acquiring data from multiple sources requires the plugin to connect to at least two external interface types, and configure cross-interface data merging logic to ensure data accuracy. The T+1 update cycle requires the plugin’s caching strategy to match the daily refresh schedule, preventing expired data from being called. Structured fields with clear units require strict matching of field names and units during tool calling; otherwise, yield calculation errors will occur. For batch queries of multiple power station data, the plugin must support batch request parameters using a list of station IDs, balancing interface call efficiency and data return volume.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
plugin_cache_ttl | 86400 seconds | Aligns with the T+1 update schedule of PV yield data to avoid calling expired data |
plugin_request_batch_size | 10–50 entries | Adapts to the query limit for single-batch station data, balancing interface call efficiency and load |
plugin_api_timeout | 30 seconds | Covers the typical response duration of most power trading interfaces to avoid timeout errors |
plugin_field_mapping | Direct mapping using interface return field names | Matches the structured field characteristics of PV data to reduce field conversion errors |
plugin_response_validation | Enable unit validation | Avoids unit inconsistencies across different data sources to ensure accurate yield calculation |
plugin_auth_type | API_KEY authentication | Complies with the authentication specifications of most power trading interfaces to secure data access |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Configuration Errors
- After calling the plugin bound with PV data, the interface returns the error "Model stream response is empty, please check if the model stream output is normal". The cause is that the structured data return switch is not enabled in the plugin configuration, causing the tool to fail to parse the field structure of PV data.
- The created PV yield plugin cannot be found in the workflow orchestration page. The cause is that the "Workflow Callable" configuration item is not enabled on the plugin edit page, or the plugin's API_KEY authentication parameter is filled incorrectly.
- The number of returned results is insufficient when querying multiple power station data in batches. The cause is that
plugin_request_batch_sizeis not set to a value adapted to the query scale, resulting in truncated data returned by the interface.
How to Confirm Proper Configuration
- Log in to the FastGPT plugin management page, view the status of the target PV yield plugin, and confirm that the "Enabled" switch is turned on.
- Initiate a single test call, pass a valid PV power station ID parameter, and check that the returned result includes all preset fields with no null values or format errors.
- Enter the workflow orchestration interface, search for the plugin in the tool call node's plugin list, and confirm that it can be normally selected and bound to a process node.
- View the plugin's call logs, verify that the response duration of each request does not exceed the configured timeout threshold, and there are no timeout error records.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.