SRECs are a commodity with prices subject to the laws of supply and demand, meaning the future value of SRECs is unknown. SRECs are also subject to the influence of RPS legislation and Solar Alternative Compliance Payments (SACP). In many states, the SACP is set to decline; therefore, it is likely that SREC prices will decrease in the future.
If you are concerned with the risk of dropping SREC prices, you may want to consider a fixed-rate contract. One of the advantages of working with Sol Systems is that you can seamlessly switch from a Sol Brokerage contract to a fixed-rate contract such as Sol Upfront or Sol Annuity, as your tolerance for risk changes.