Risk Assessment for Solar PV Installation — UK

UK construction-safety guidance by the Riskora Editorial Team

Most of the work involved in solar pv installation is straightforward — it is the documentation that delays the start date for small contractors. Electric shock from contact with low-voltage mains can cause cardiac arrest, while contact with high-voltage equipment can cause fatal burns from arc flash even without direct contact. On solar pv installation, the relevant duty is unambiguous: The Electricity at Work Regulations 1989, BS 7671, and MCS standards require risk assessments for PV installation. The right Risk Assessment pulls all of this together — the law, the site, the people, the controls — into one document that does the job.

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Example Risk Assessment

Risk Assessment for Solar PV Installation — UK

  • Full scope and description of installation of solar photovoltaic systems on roofs and ground-mount arrays
  • Site-specific hazard identification and risk ratings
  • Risk control: electric shock from DC voltage — PV panels cannot be isolated from sunlight
  • Risk control: falls from roofs during panel installation and cabling
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When This Document Is Required

The Electricity at Work Regulations 1989, BS 7671, and MCS standards require risk assessments for PV installation. The DC side of the system is live during daylight whenever panels are exposed.

What Must Be Included

  • Full scope and description of installation of solar photovoltaic systems on roofs and ground-mount arrays
  • Site-specific hazard identification and risk ratings
  • Risk control: electric shock from DC voltage — PV panels cannot be isolated from sunlight
  • Risk control: falls from roofs during panel installation and cabling
  • Risk control: fire from incorrect DC connections or damaged cables under load
  • PPE and RPE requirements for all personnel
  • Emergency procedures and response arrangements
  • Competency requirements and training records
  • Communication and briefing procedures
  • Supervision and monitoring arrangements
  • Review schedule and sign-off by competent person

Common Mistakes to Avoid

  • Using a generic template without adapting it to the specific installation of solar photovoltaic systems on roofs and ground-mount arrays conditions
  • Not reviewing the document when site conditions change
  • Missing sign-off from a competent person before work begins
  • Failing to consider electric shock from DC voltage — PV panels cannot be isolated from sunlight
  • Not addressing falls from roofs during panel installation and cabling
  • Not briefing all workers on the document content before work starts

Example Scenario

On a typical UK site, a site manager has a Friday deadline for a Risk Assessment and is working evenings to get it through review — the kind of pressure most small contractors will recognise. In the Riskora builder they choose the right trade preset, remove the hazards that do not apply, add a couple of site-specific entries from the custom hazard library, and save the finished document for distribution to the team. The finished document explicitly addresses electric shock from dc voltage — pv panels cannot be isolated from sunlight, which the principal contractor would otherwise expect to see written into the pack.

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Riskora is an assistive document preparation tool. All documents generated must be reviewed, verified, and approved by a competent person before use on site. Riskora does not replace professional safety judgment, and no output should be treated as a legal compliance guarantee.