As the commercial and industrial (C&I) solar sector matures, developers and asset managers are facing a new challenge: scale.
Managing a handful of PV sites is one thing. But managing 30, 100, or even 300 distributed sites across geographies? That’s a different game entirely, especially when it comes to forecasting long-term energy yield.
Traditional methods for Long-Term Yield Assessments (LTYAs) were never designed for this scale. They are manual, slow, expensive, and often provide incomplete or misleading insights when extrapolated across portfolios.
That’s why 3E built Mass LTYA: a scalable, automated and high-precision approach to yield forecasting, purpose-built for large PV portfolios.
Why traditional LTYA methods break down in large portfolios
If you're a solar developer or asset manager, you already know that accurate long-term yield forecasts are essential for:
• Securing financing and ensuring bankability
• Modelling revenue and ROI
• Assessing and managing risk
• Optimising asset performance
But here is where traditional approaches fall short:
The more assets you have, the harder and more expensive it gets to generate actionable insights across the board.
Introducing Mass LTYA: a digital twin-driven breakthrough
3E’s Mass LTYA changes the game by combining 25+ years of high-resolution irradiance data, cutting-edge data science, with SynaptiQ, our SaaS digital twin platform for asset management performance
Instead of modelling a few ‘representative’ sites, you simulate every single asset, quickly, consistently and accurately.
Here’s what makes it different:
• 100% asset coverage: all assets in your portfolio, not just a sample, are simulated, allowing you to generate P50/P90 profiles with greater confidence.
• Digital twin technology: each site is modelled as a digital twin within SynaptiQ, ensuring high fidelity to real-world configuration.
• Loss breakdown analysis: you gain clear insight into yield losses through detailed breakdowns of soiling, shading, inverter clipping, temperature and more.
• Speed + scale: results are delivered in weeks, not months, and at a fraction of the typical cost.
Key features of Mass LTYA
Proven accuracy, fast delivery & cost efficiency
We benchmarked Mass LTYA against detailed, traditional assessments across ~30projects.
The results? An average deviation of less than 1.6%, with some as low as 0.1%. That’s well within investment-grade thresholds, and all delivered in a fraction of the time and cost!
Where Mass LTYA delivers the most value
• Financing large portfolios: banks and investors receive standardised, high-confidence P90 reports at scale.
• M&A due diligence: acquisition targets are quickly evaluated, even across fragmented asset sets.
• Asset management & reporting: internal forecasts and investor dashboards are updated with accurate portfolio-wide AEP figures.
Case study: €49M in financing secured with Mass LTYA
What’s included in our Mass LTYA
Every Mass LTYA engagement includes:
1) P50/P90 energy yield estimates per site
2) Detailed loss diagrams per asset
3) Executive summaries + portfolio roll-ups
4) Optional integration into the SynaptiQ platform for monitoring and performance tracking
Take control of PV forecasting at scale
Mass LTYA gives you back control at scale
Whether you're seeking financing, managing performance or evaluating acquisitions, Mass LTYA delivers the speed, consistency and accuracy you need — portfolio-wide.
Say goodbye to spreadsheets, sampling and site-by-site bottlenecks. Say hello to scalable solar intelligence.
Ready to assess your portfolio at scale?
Reach out to us through this contact form.
