Active electronics with MPPT and wireless communication

Most reliable, multi-mode MPPT per module

In contrast to conventional PV system approaches, Ampt puts maximum power point tracking (MPPT) on the solar module. This approach allows systems to capture the full potential of each module.

Our active electronics are integrated into the junction box of a PV module, effectively turning the module from a current source into a power source. The weakest module no longer limits the energy realized from all the other modules in a string.

Instead, the full power potential of each module is captured and combined for maximum energy harvest. We achieve this despite mismatches within or between strings caused by variations in nameplate output, degradation, or environmental conditions such as shade, temperature, soiling, and orientation.

Most flexible and open architecture

With conventional designs, the use of a series-parallel PV architecture limits site utilization and increases balance of system (BOS) costs. Because string lengths must be identical, system designers sacrifice potential coverage areas that can’t accommodate entire strings of modules, or that would be partially shaded during the day.

Ampt requires no such tradeoffs. By moving MPPT to the module, we give system designers the flexibility to work around space constraints, take advantage of  partial/transient shade locations, and minimize BOS costs.

Most scalable and accurate communication

In another advance over conventional approaches, Ampt provides optional wireless communication capabilities on individual solar modules. Using Ampt or third-party software, system operators can access module-level performance data and control capabilities through an open interface, allowing them to analyze trends, configure alerts, and improve decision-making.

With Ampt module-level communication, operators can quickly find and fix problems. Safety is also greatly enhanced by preventing or detecting potentially hazardous fault  conditions and disabling the output of individual modules, strings, or the entire system if needed.