Solar energy assessment validation
DNV’s approach to improving the accuracy of our solar energy assessments
Solar projects of all sizes have generally produced less than their long-term energy forecasts. Numerous studies* have demonstrated that project underperformance is an industry-wide problem, including one that shows nearly half of project years are not hitting their 1-year P90 and P50 gaps of >7%. Unfortunately, DNV’s own solar energy assessments are not immune to this problem. In 2019, DNV published a white paper illustrating a 3.1% shortfall in our own energy assessments. What will DNV do about it?
The following will go through the road map on our approach to how we are addressing this industry-wide problem. With over 150 years as a trusted independent advisory, DNV is uniquely positioned to lead the industry to more accurate energy assessments and provides the largest solar validation in the industry. Our team of leading experts have virtually eliminated the energy assessment gap in the wind industry and will bring this expertise to solar.
Over the remainder of 2021, DNV will be opining on our current hypotheses in bridging the gap:
- Sub-hourly clipping loss
- Terrain adjustment
- Wind stow
Join us on the journey! Throughout the year, we will present and discuss the latest methodology refinements.