740 MW One Earth Solar Project
The One Earth solar project in the UK, developed by Ørsted and PS Renewables (PADERO SOLAER LTD), is a flagship utility-scale solar energy development focused on long-term performance and financial resilience.
To support this goal, Galetech Measurement Services - trusted partners across multiple projects in Ireland over the past decade - were selected to deliver high-quality solar resource measurement and data analysis.
Early indicators show a measurable improvement in solar data accuracy, modelling precision, and energy yield confidence, with full results still being assessed.
Client
Ørsted and PS Renewables
Capacity
xxx
Location
UK
Architect
Challenge
Reducing Solar Yield Uncertainty in Project Financing
In utility-scale solar projects, financing depends heavily on conservative energy estimates, typically P90 energy yield scenarios.
However, solar resource uncertainty can significantly impact:
Project bankability
Financial modelling accuracy
Debt structuring and DSCR (Debt Service Coverage Ratio)
Investor and lender confidence
Without precise solar irradiance measurement and reliable early-stage data, developers face wider P50–P90 gaps, increasing perceived risk and limiting financing efficiency.
Solution
Solution: High-Quality Solar Measurement and Data-Driven Modelling
Galetech Measurement Services implemented advanced solar measurement solutions to improve data quality at an early development stage.
This approach focused on:
Enhancing solar irradiance data accuracy
Reducing energy yield uncertainty
Strengthening solar resource assessment models
Supporting more robust financial forecasting and risk analysis
By investing early in high-resolution solar data, the project team built a stronger foundation for bankable energy estimates and long-term performance modelling.
Outcome
Outcome: Improved Bankability and Financial Performance
Even a modest reduction in solar yield uncertainty can deliver significant financial and strategic advantages for large-scale solar developments.
Key Benefits
Increased confidence in bankable energy yield estimates (P50/P90)
Narrowed P50-P90 uncertainty range
Improved lender confidence and stronger DSCR resilience
Greater flexibility in project finance structuring
Enhanced risk-adjusted returns for investors
Reduced long-term revenue volatility
Project Impact
De-risked solar project financing
Stronger investment committee approvals
More efficient capital deployment strategies
Increased attractiveness to institutional investors
