What this category of data looks like
Power industry financial report data primarily comes from regularly published reports of publicly listed power enterprises and industry operation data released by power regulatory authorities. The update cycles are primarily quarterly, semi-annually, and annually, with some monthly operation data updated concurrently. Document structures typically include four core modules: core financial indicators, detailed power generation business data, power transmission and distribution data, and cost composition. Fields cover installed capacity, grid-connected power generation, coal consumption for power supply, unit power sales cost, and other related items. Units mostly use professional metering standards such as ten thousand kilowatts, hundred million kilowatt-hours, grams of standard coal per kilowatt-hour, and yuan per megawatt-hour.
Constraints on Document Parsing and Chunking
The structured, multi-module data in power industry financial reports requires the parsing process to accurately identify field associations across modules, to avoid severing the corresponding relationship between power generation costs and grid-connected power generation during chunking. Single periodic reports have a large number of pages, so the parsing process must adapt to the segmentation boundaries of long documents, to prevent splitting content from the same business module into multiple independent chunks. The fixed units of professional metering fields require the parsing process to retain the binding relationship between numerical values and their units, to avoid field matching errors. The high-frequency updates of monthly operation data require the parsing process to adapt to rapid processing of small batch documents, to avoid parsing timeouts for individual documents.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Power industry annual financial reports have a large number of pages, leading to longer parsing times. 600 seconds covers the processing needs of most long documents |
Segment Length | 800–1200 characters | Power financial reports contain professional business descriptions with long sentences. 800-1200 characters preserves the integrity of business modules and avoids splitting critical data |
CHUNK_OVERLAP | 10–15% | Power financial reports contain a large amount of business data with cross-segment associations. An overlap rate ensures contextual coherence and avoids critical information being broken |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Single files of large annual financial reports may exceed conventional limits. 1000 MB covers the upload needs of most industry reports |
ENABLE_FIELD_MATCH | Enabled | Power financial reports have fixed-format professional fields and units. Enabling this setting binds numerical values to their corresponding units, avoiding parsing and matching errors |
PARSE_BATCH_SIZE | Calibrated via actual testing | When uploading monthly operation data in batches, batch size must balance processing efficiency and system resource usage. Adjust based on actual test results |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on independent samples before finalizing settings.
Three common mistakes
- Phenomenon: After uploading a power industry financial report PDF, the data processing step returns empty results. Cause: The
ENABLE_FIELD_MATCHconfiguration is not enabled, resulting in structured fields failing to be recognized, with no valid content remaining after data cleaning. - Phenomenon: When uploading monthly operation reports in batches, some documents fail parsing with a timeout, and the interface displays a
504 Gateway Timeouterror. Cause: ThePARSE_FILE_TIMEOUT_SECONDSconfiguration value is lower than 600 seconds, interrupting long document processing before completion. - Phenomenon: In search test results, numerical values and their units are separated. For example, only "300" is displayed, without "300 grams of standard coal per kilowatt-hour". Cause: The field binding relationship during chunking is not retained, and the parsing process fails to link numerical values to their corresponding units.
How to confirm correct configuration
- Upload a single long-cycle power financial report, confirm that the parsing process has no timeout errors and completes normally.
- Select a document segment containing professional metering fields, check whether the numerical values and their corresponding units are fully bound in the chunking results.
- Upload multiple small monthly operation reports in batches, confirm that the data processing step returns no empty results.
- Adjust chunking-related configurations, compare chunking effects across different values, and confirm that business modules are not unreasonably split.
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.