Locus Energy to Launch Virtual Irradiance™ - a Break-Through Software Service for Real-Time and Historical Solar Irradiance Modeling

Oct 14, 2011, 12:23 ET from Locus Energy

NEW YORK, Oct. 14, 2011 /PRNewswire/ -- Locus Energy is preparing to launch Virtual Irradiance™ -- a patent pending software service providing highly accurate estimates of historical and real-time solar irradiance across North America. The service will be offered as an add-on for all users of the company's web-based residential and commercial monitoring platform.

Using patent pending algorithms, Locus Energy has developed an affordable high-quality model capable of estimating solar irradiance in real-time or historically without a physical sensor. The model establishes baseline irradiance levels derived from government satellite imagery and weather feeds and then iteratively refines the estimates by cross-referencing performance data collected by Locus Energy's network of several thousand monitoring sites across the U.S.

Key Features:  

  • No Physical Sensor Required
  • Equivalent Accuracy to Physical Sensor (at a weekly or greater level)
  • Continental North America Coverage (some limitations in Canada and Mexico)
  • Individual Site or Fleet Wide Data Availability
  • Real Time and Historical Estimates

The methodology produces solar irradiance estimates with greater accuracy than previously published academic models and it iteratively improves as Locus Energy's network grows. The Virtual Irradiance™ model produces solar irradiance data that enables the PV industry to mitigate risk by improving project location selection and more accurately modeling and analyzing system production at an individual site or across an entire fleet.

Virtual Irradiance™ is fully integrated with the Locus Energy monitoring platform, improving existing analytics like automated system acceptance and system performance yield. Additionally, the model will be leveraged throughout Locus Energy's future products, such as the SolarNOC™ planned for release in Q1 2012. Virtual Irradiance™ will be released in beta along with an accompanying white paper on October 17 at Solar Power International 2011 in Dallas, TX.

Please visit for more information or visit us at booth #735 at SPI '11 for a demonstration.

About Locus Energy

Locus Energy develops web-based asset management software for renewable energy systems.  We provide monitoring, analytics and data services for deployments of solar photovoltaic and solar thermal technology. By leveraging Locus' products, renewable finance companies and integrators can drive down the cost and complexity of energy monitoring while making it much easier to maintain and service an installed client base. Founded in 2007, Locus has offices in New York and San Francisco, and monitors several thousand PV arrays worldwide.

CONTACT: Adrian De Luca, +1-212-500-2097,

SOURCE Locus Energy