How Should a Rooftop PV Cleaning Decision Be Documented

Base a cleaning discussion on observed soiling, monitoring evidence and the selected module and roof instructions. An arbitrary calendar frequency may not reflect the actual site. Record why intervention is being considered, who will assess access and compatibility, and how the outcome will be checked without promising a fixed energy gain.

Concept illustration for how should a rooftop pv cleaning decision be documented.

Concept illustration • X-SOLAR • 屋顶光伏清洁决策应怎样记录

Practical review checklist

· Describe the observation. Record contamination type, location, observation date and available photographs.

· Check other explanations. Ask the operator to consider data gaps, shading or equipment events before attributing a production change to dirt.

· Review the method. Obtain the applicable manufacturer instructions and a competent contractor's roof access and work plan.

· Keep the result comparable. Record work dates and operating conditions when reviewing subsequent monitoring data.

When to request clarification

Do not specify chemicals, water pressure or a universal cleaning interval without the selected products' requirements. Leave unsafe or unassessed roof access unresolved until reviewed.

Questions buyers ask

Does visible dust always explain low output? No. A competent review should consider the full operating and data context.

What should the owner retain after review? Keep the applicable documents, decision record, responsible contact and any remaining conditions accessible for later maintenance.

Information to send with an enquiry

Send contamination photos, monitoring context, module identity and relevant roof and module care instructions.

This is a project discussion checklist, not an installation instruction or an approval. The selected manufacturers, project engineer and local authority must confirm the applicable requirements.

Related X-SOLAR guide: Roof engineering assessment checklist

Further reading: US DOE FEMP — operate and maintain an existing PV system

屋顶光伏清洁决策应怎样记录

清洁讨论应以污染观察、监控证据及所选组件和屋面说明为基础。统一日历频次未必适合现场，应记录干预原因、进入及兼容性评估责任和结果核对方法，不承诺固定增发比例。

实用核对清单

· 描述观察：记录污染类型、位置、日期及照片。

· 核对其他解释：将数据缺失、遮挡和设备事件与污染影响区分。

· 审查方法：取得制造商说明及专业承包方的进入和作业计划。

· 保持结果可比：分析后续监控时记录作业日期与运行条件。

需要澄清的情况

未确认具体产品要求前，不给清洗剂、水压或统一周期；未评估的屋面进入条件须先解决。

常见问题