When speaking with homeowners who have recently invested in solar energy, and who are considering how to manage the sale of their Solar Renewable Energy Credits (SRECs), a common question is, “how will my solar electricity be monitored and how do I earn SRECs?”

This simple question cuts right to some of the most complex and nuanced underpinnings of how SREC markets work and begs answers to questions like:

• How is solar electricity production monitored?
• How is this production reported to a solar Attributes Tracking Program?
• How is the reported generation verified as accurate?

These questions illustrate the complexity of SREC markets — particularly because the answers to these questions vary by state. It’s understandable that homeowners can be intimidated by the solar industry and SREC markets; however, navigating these complexities is possible.

Each state determines its own regulations for monitoring solar electricity generation for SREC production. These regulations may require an inverter, a solar meter, or a remote monitoring system. Depending on the system state, and the size of the system, vastly different reporting technologies are required.

Reporting provisions refer to how the solar monitoring data is transmitted to an Attributes Tracking System (such as PJM’s Generation Attributes Tracking System “GATS”) for verification and ultimately SREC production. Solar reporting provisions are also determined on a state by state basis. For example, in Massachusetts all monitoring data must be reported to the Massachusetts Production Tracking Systems (administered by the MA Clean Energy Center). For systems above 10 KW , the monitoring data must also be reported electronically though a remote monitoring system, such as Locus Energy. However, each state differs on these provisions as well.

Verification of reported monitoring data is the final step of the compliance cycle for SREC production, and is conducted by the Attributes Tracking System. The only exception to this rule is Massachusetts, in which the Production Tracking System verifies the reporting data and then transmits it to NEPOOL GIS on the system owner’s behalf. For all solar energy systems registered with PJM GATS, GATS verifies reporting data by comparing the data with its own internal models. If and when GATS determines the reported generation falls within boundaries of the projected modeled generation, GATS then awards the system owner’s account SREC value. In the event that the reported data is not within the bounds of the projected modeled generation, GATS follows up to verify the accuracy of the reported data. In the future, some states will be implementing independent verification steps to ensure that the reported data is accurate, and markets are operating efficiently.

Certainly, it can be challenging to understand and abide by the requirements of SREC monitoring, reporting, and verification; however, the benefit of working with an aggregator like Sol Systems is that we navigate these complexities on behalf of our customers. We understand these provisions, abide by them, and work with regulators on a daily basis. This means our customers can rest assured that they receive all the credit, and solar credits, for their solar electricity production.