Energy Yield Analysis by Sunpulse

Precision Forecasting. Proven Results.

At Sunpulse, we deliver industry-leading energy yield analysis for solar PV plants across Japan and the Asia Pacific. With over 1,400 projects modeled and 300+ MW of bank-financed reports, our expertise is trusted by top-tier developers, asset owners, and investors.

Cutting-Edge Technology

• 3D PVSYST Modeling: Powered by GSI map-based digital elevation models, ideal for Japan’s mountainous terrain.
• Snow Modeling: Advanced simulations using real snowfall data and microclimate variations.
• Spectral Adjustment Layer: An exclusive enhancement to PVSYST 7.4, approved by independent auditors.
• Multi-Source Irradiance Input: Incorporating MTSAT, JMA, METEONORM, METPV-20, and more for accurate predictions.
• Drone-Based Surveys: In-house UAV data collection ensures high-resolution inputs for near-shading calculations.

Our Method: Data-Driven & Validated

• Over 100 MW of operational plant data used to validate our Energy Prediction Review (EPR).
• Accepted for Over 70 MW of solar plants requiring bank financing in Japan.
• 50+ PV Sites monitored across Japan for continuous feedback and refinement.
• Published Research: Our methodologies have been featured at international conferences for their accuracy and innovation.

What You Get

• Sub-hourly, hourly, and monthly yield forecasting.
• 2D and 3D terrain modeling with shading scene accuracy.
• Support for any PV component manufacturer. e.g. Manufacturers PAN files or 3rd party certified PAN files.
• Financial modeling tied to realistic output expectations.
• Microclimate analysis and snow impact assessment.

Why Sunpulse?

Quality

Our scientific rigor and cross-validated modeling have set a new benchmark in the Japanese PV market.

Speed

A dedicated team of solar engineers responds rapidly and precisely to client feedback and project needs.

Trust

97%+ client satisfaction rate and repeat engagements from top developers and long-term owners.

Designed for Japan

With over 70% of Japan's land being mountainous, standard flat-ground modeling isn't enough. Our 3D terrain tools accurately simulate installations with varied slopes and azimuths. We also account for Japan's unique microclimates—where snow, irradiance, and yield can vary drastically across short distances.

Ready to Learn More?

Let Sunpulse help you maximize your solar project's potential.

Contact us for a consultation or to request a sample report.

The framework is based on the JIS C 8907:2005 Japanese industrial standard for energy yield analysis and also has the additional input of multiple irradiance data sources to strengthen correlation. Final specific yield assessment is based on the Meteonorm 8 dataset.