What this category’s data looks like
Listed photovoltaic industry company financial report data is mainly sourced from periodic reports and temporary correction announcements publicly disclosed by domestic and overseas stock exchanges, as well as structured photovoltaic sector datasets from third-party financial data terminals. Update rhythm follows mandatory quarterly and annual report disclosure cycles: quarterly reports are updated within one month after the reporting period ends. Full annual report updates are completed by April 30 of the following year. Temporary correction announcements are synchronized immediately after release.
A single financial report document includes structured fields including business segment revenue, capacity utilization rate, component shipment volume, gross margin, and more. Revenue uses 100 million yuan as its unit. Shipment volume and capacity use GW or MW as units. Some polysilicon-segment companies add fields related to per-ton cost.
What constraints do these characteristics impose on HTTP interfaces and external systems
The periodic batch updates and temporary correction features of photovoltaic financial reports require HTTP interfaces to support batch retrieval filtered by reporting period and company code. This avoids timeouts caused by excessive data volume in a single request.
Multi-dimensional splitting of structured fields (such as revenue from component and polysilicon businesses) requires the interface to return nested JSON structures. It also requires parameters for specifying field filtering.
Differences in units across data sources (GW and MW) require the interface to support standardized unit returns. It can also provide unit conversion configuration options.
Differences in field naming across data sources require the interface to support custom field mapping rules. This adapts to the access format requirements of external systems.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
API_REQUEST_TIMEOUT | 300 seconds | Structured photovoltaic financial report data has a large per-document volume. Sufficient response time must be reserved during batch retrieval to avoid mid-process timeout interruptions |
BATCH_REQUEST_LIMIT | 50 items per request | The number of listed companies in the photovoltaic sector is concentrated. A single batch request of 50 items balances interface load and data retrieval efficiency |
FIELD_FILTER | business revenue, shipment volume, gross margin | Core analysis dimensions of photovoltaic financial reports focus on business split data. Specifying filter fields reduces invalid data transmission |
UNIT_STANDARDIZATION | Enabled | Units of photovoltaic-related fields from different data sources vary between GW and MW. Enabling this allows unified return of standardized units |
INCREMENTAL_SYNC_CRON | 0 */4 * * * | This adapts to the batch update cycle of quarterly and annual reports. Triggering incremental retrieval every 4 hours balances real-time performance and resource usage |
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 case-by-case analysis. It is recommended to test against applicable samples before finalizing.
Three common configuration mistakes
- Setting the
streamparameter totruewhen calling the interface prevents retrieval of complete analysis results, and only partial segmented data is received. This occurs because result merging logic is not configured, and aggregation processing is not performed after all streaming data has been received. - Encountering the
429 Too Many Requestserror causes interface access failures. This occurs because request frequency is not controlled according to theBATCH_REQUEST_LIMITconfiguration, and the number of single batch requests exceeds the interface current limiting threshold. - The
shipment volumefield in retrieved financial report data is empty. This occurs because theFIELD_FILTERconfiguration is not enabled, or the specified field name does not match the field name in the data source, and the shipment volume statistical field of photovoltaic enterprises is not correctly mapped.
How to confirm the configuration is successful
- Initiate a retrieval request for a single photovoltaic financial report. Check that the returned HTTP status code meets expectations, and includes core fields such as business revenue and shipment volume.
- Set the
streamparameter totrueand initiate an analysis request. Verify that after all streaming return fragments are received, complete analysis results can be assembled. - Check external system connection logs. Confirm that the number of batch requests does not exceed the preset current limiting configuration, and there are no situations where current limiting is frequently triggered.
- Compare the original data source and the field units returned by the interface. Confirm that the standardized unit conversion configuration is effective, and all units are unified to the preset standard units.
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.