HTTP Interfaces and External Systems for Photovoltaic

What data for this category looks like

Data for photovoltaic intelligent due diligence reports comes primarily from photovoltaic power station SCADA monitoring systems, grid connection dispatch platforms, component operation and maintenance ledgers, and regional meteorological stations. Real-time operational data such as real-time power generation and irradiance updates every 5 minutes. Ledger data such as installed capacity and component model updates monthly. Each report corresponds to one or multiple power stations. The document structure includes four modules: basic power station information, equipment parameters, power generation performance, and operation and maintenance records. Fields include installed capacity (unit MWp), daily power generation (unit kWh), irradiance (unit W/㎡), inverter ID, and others. A complete single report typically has a text length of tens of thousands of characters.

Constraints on HTTP interfaces and external systems from these characteristics

Photovoltaic data’s high-frequency update requirement means interfaces must support short-interval requests. Configure reasonable request rate limits to avoid triggering external interface rate limiting. Multiple fields with dedicated units require interface-returned structured data to strictly match preset field names and units. Mismatches will cause due diligence report data to be distorted. The combination of long text and multi-station data requires HTTP interfaces to support paged returns or batch requests. Without this, single requests will time out due to excessive data volume. Financial due diligence scenarios have high data credibility requirements. Interfaces must support TLS certificate verification. Special configuration is required for some operation and maintenance platform interfaces that use self-signed certificates.

How to set configurations

Configuration Item	Recommended Value	Rationale
`HTTP_REQUEST_TIMEOUT`	`300 seconds`	Photovoltaic due diligence data interfaces often return multi-station batch data. 300 seconds covers the complete data pull process
`RESPONSE_PARSE_FIELD_LIST`	`["电站ID", "装机容量", "日发电量", "辐照强度"]`	Only parse core fields required for due diligence reports to avoid redundant data occupying parsing resources
`REQUEST_RATE_LIMIT`	`10 requests per minute`	Most photovoltaic power station SCADA interfaces have a default rate limiting threshold of 10-15 requests per minute. Matching this value prevents being blocked
`CERT_VERIFY_MODE`	`strict`	Financial due diligence scenarios require trusted data sources. Strict TLS certificate verification prevents data tampering
`CUSTOM_VAR_MAPPING`	`{"电站名称":"station_name", "发电量":"power_gen"}`	Match field names returned by external interfaces with custom variables for due diligence reports to ensure correct data population
`PARSE_HTTP_RESPONSE_TYPE`	`json`	Photovoltaic operation and maintenance platforms and grid connection interfaces mostly return structured JSON formats. Adapting to this type simplifies the parsing process

The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing settings.

Three common mistakes

Calling external interfaces returns 429 Too Many Requests errors. No reasonable request rate limit is configured, exceeding the official rate limiting threshold of photovoltaic data interfaces.
Logs show tls: failed to verify certificate: x509: certificate has expired or is not yet valid. Self-signed certificates from photovoltaic operation and maintenance platforms are not handled correctly. Forcing verification to be skipped reduces data credibility.
Custom input variables receive empty fields. No CUSTOM_VAR_MAPPING rules are configured, and photovoltaic fields returned by external interfaces are not aligned with variable names for due diligence reports.

How to confirm proper configuration

Initiate a test request, check if the returned structured data includes preset core fields such as 电站ID and 装机容量, and that units comply with photovoltaic industry standards.
Initiate 15 consecutive requests, check if 429 errors are triggered, verifying that the REQUEST_RATE_LIMIT configuration takes effect.
View interface call logs to confirm that the TLS certificate verification process is normal, or that corresponding parameters have been correctly configured when using self-signed certificates.
Input preset custom variables, check if the generated due diligence report correctly populates photovoltaic data fields returned by external interfaces.

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.