Simple Solar Spectral Model for Direct and Diffuse Irradiance on Horizontal and Tilted Planes at the Earth's Surface for Cloudless Atmospheres

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PREFACE

This report documents work performed by the Solar Energy Research Institute (SERI) Resource Assessment and Instrumentation Branch for the Department of Energy under Task No. 3414.10. It presents a new simple model for direct and diffuse spectral irradiance on horizontal and tilted surfaces at the earth's surface for clear days.





Approved for

SOLAR ENERGY RESEARCH INSTITUTE

Roland Hulstrom, Manager
Resource Assessment and Instrumentation Branch

Donald Ritchie, Director
Solar Electric Research Division



Summary

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