Research Timeline

2022

Impact of PV/Wind Forecast Accuracy and National Transmission Grid Reinforcement on the Italian Electric System

Research | November 2022

The high share of PV energy requires greater system flexibility to address the increased demand/supply imbalance...

IRENA SolarCity

This project combines ultra-high-resolution (0.5 meter or 1 meter) Digital Elevation Model (DEM) data and 3D vector...

IEA Task 16-3.5 Report: Firm Power Generation

Research | November 2022

Grid-connected solar power generation, either dispersed or centralized, has developed and grown at the margin of a...

Firm PV Power generation for Switzerland

Research | June 2022

We investigate whether photovoltaics (PV) can effectively and economically contribute to a massively renewable energy...

Firm PV Power Generation in Switzerland

Research | June 2022

We investigate whether PV can effectively and economically contribute to a massively renewable energy (RE) power...

2019

Extending Fleet Forecasting Capability into the Probabilistic Realm

Research + Solar Prediction | July 2019

This presentation demonstrates how a new approach to PV fleet forecasting can address the problem of artificially high...

Investigations of Site-Specific, Long Term Average Albedo Determination for Accurate Bifacial System Energy Modeling

Research | June 2019

As interest in bifacial PV modules grows, there is a need to quantify the impact of additional energy generation for...

Improved PV System Modeling with ML-Based Power Model: Case Study of a Commercial Building

Poster + Research | May 2019

Solar PV system specifications are critical to accurately modeling PV system production (along with high-quality...

2018

EPIC Solar Forecasting Task 3 Final Report: Grid-Connected and Embedded PV Fleet Forecasting Accuracy

Research | April 2018

This report, prepared with an Electric Program Investment Charge (EPIC) fund, describes new methods for improving...

EPIC Solar Forecasting Task 2 Final Report: Data Forecasting Accuracy

Research | April 2018

This report, prepared with an Electric Program Investment Charge (EPIC) fund, describes the results of research to...

Advancing the Science of Behind-the-Meter PV Forecasting

Presentation + Research | February 2018

This presentation discusses how probabilistic forecasting enables electric utilities and grid operators to reduce...

2016

Importance of Input Data and Uncertainty Associated with Tuning Satellite to Ground Solar Irradiation

Research | June 2016

Although the uncertainty of satellite data such as SolarAnywhere® Data has been shown to be low, it can be challenging...

Solar Energy Forecast Validation for Extended Areas & Economic Impact of Forecast Accuracy

Research | June 2016

This article evaluates the accuracy of solar forecast models, including SolarAnywhere®, as a function of geographic...

2013

Behind-the-Meter PV Fleet Forecasting

Research + Solar Prediction | March 2013

Grid-connected PV in the U.S. has grown substantially over the past several years and grid operators are increasingly...

Forecasting Output for 130,000 PV Systems in California

Research + Solar Prediction | February 2013

Lean how SolarAnywhere® FleetView® is being integrated into CAISO planning and operations tools to provide power...

2012

Behind-the-Meter PV Fleet Forecasting

Research + Solar Prediction | October 2012

Learn how SolarAnywhere® FleetView® can be used for behind-the-meter PV fleet forecasting. Presented at the Utility...

Solar Monitoring, Forecasting and Variability Assessment at SMUD

Research + Solar Prediction | April 2012

This paper summarizes the deployment of a 71 station solar monitoring network in Sacramento, Calif., and its use in...

Evaluating Irradiance Accuracy Using California ISO Data: Lessons Learned

Research + Solar Prediction | February 2012

This presentation provides the results of a study evaluating the short, medium and long-term accuracy of irradiance...

2011

Determining Storage Reserves for Regulating Solar Variability

Research | November 2011

This paper describes the initial validation of a method of quantifying PV variability by using satellite-derived solar...

Modeling PV Fleet Output Variability

Research + Solar Prediction | May 2011

This paper introduces a novel approach to estimating the maximum short‐term output variability that an arbitrary fleet...

2010

Parameterization of Site-specific Short-term Irradiance Variability

Research + Solar Prediction | November 2010

This article presents a set of empirical models capable of extracting metrics quantifying the short‐term variability...

Valuing a Portfolio of PV Investments

Research + Solar Prediction | October 2010

This presentation describes the importance of PV output variability as a factor in calculating the value of a fleet of...

Validation of Short & Medium Term Operational Solar Radiation Forecasts in the U.S.

Research + Solar Prediction | August 2010

This paper presents a validation of the short- and medium-term global irradiance forecasts that are produced as part...

2009

Evaluating PV Fleet Output Variability

Research + Solar Prediction | December 2009

This presentation describes methods for evaluating the power output variability of PV fleets, and how that information...

Quantifying PV Power Output Variability

Research + Solar Prediction | May 2009

This paper presents a new approach to rigorously quantify power output variability from a fleet of PV systems, ranging...

2004

Field Validation of the Clean Power Estimator’s Obstruction Analysis Algorithm

Economic Valuation + Research + Solar Prediction | February 2004

This paper validates the Clean Power Estimator obstruction analysis algorithm based on results produced by the Solar...

2003

Validation of a Simplified PV Simulation Engine

Economic Valuation + Research + Solar Prediction | June 2003

This paper describes and validates a simple PV simulation model capable of predicting average PV output as a function...

Blog

Jan 10, 2023

Solar Generation Index 2022: Continued P50 underperformance of 7-13% highlights need for accurate data and greater transparency

Despite continued supply chain disruptions in 2022, the U.S. solar industry’s outlook appears strong with the passage of the Inflation Reduction Act (IRA). SEIA and Wood Mackenzie have increased their U.S. solar deployment forecast, expecting the industry to triple...

Implicit storage continues to gain support to enable renewables to deliver firm power, cost effectively

With solar and wind providing a greater percentage of electricity, managing the intrinsic intermittency of variable resources is becoming increasingly important. How do we overcome this intermittency? Answering this question has been the focus of an international...

2022 Solar Risk Assessment Report: Expert insights into key risk factors impacting solar assets globally

Although 2021 marked the third year in a row that solar represented the largest share of new generation capacity in the U.S., continued supply chain constraints, tariff investigations and inflation all pose uncertainty for 2022 project development pipelines. In this...

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