Case Study - Ground-Mounted Solar

Bryngolwg and Horsey Levels Solar Farms

Wales and Somerset

Green Cat Renewables (GCR) provided Pre-Construction Due Diligence, Technical Advisory Services throughout construction, and post-construction performance testing sign-off for two ground mount solar arrays. The two sites total 46MWp.

Pre-construction Technical Due Diligence was carried out to support project financing, including identification of technical risks relating to planning consent, ground conditions, a review of system configuration, EPC Contracts, O&M Contacts and Grid Connection Offers.

Following pre-construction Due Diligence, GCR were appointed to act as Client’s Engineer during the construction of each array. This involved general project and contract management, as well as construction supervision.

Site visits were conducted by GCR at relevant EPC Contract Milestones and Milestone sign-off reports were provided to the Developer. Site visits monitored construction progress, installation methodology, site condition, and quality of the installations.

Recommendations were made following site visits and incorporated into punch lists.

Although the two sites were built-out by the same contractor under the same developer, each site has specific issues to consider. The varying topography at each site had impacts on array configuration such as inter-row spacing and inclination angle, as well as issues during construction such as access for delivery of components and site drainage. These constraints were considered during the initial Due Diligence process and during construction site visits.

Following substantial completion of construction, GCR conducted a Provisional Acceptance (PAC) site visit to enable PAC sign off and to feed into the final punch list to identify all outstanding snagging items. A review was then conducted of the Contractors Performance Ratio (PR) calculation to verify methodology and adherence to the EPC Contract.

Key Data
  • Two ground mount solar farms totaling 46MWp
  • The sites utilise bi-facial solar modules
  • Horsey levels was the first site in the UK to be connected under National Grid Technical Limits acceleration program
  • Pre-construction Due Diligence
  • Technical Advisor during construction and operation
  • EPC Contract Milestone sign-off
  • Bankable Energy Yield Assessment
  • Generation of PAC punch list
  • Sites commissioned 2023/24