Tom Johnson is a Massachusetts-based consultant specializing in PV system development, energy services, and SCADA. He was formerly the Solar Monitoring Product Manager for Solectria Renewables where he oversaw the development of utility communications systems for their smart grid inverters. Tom was an early adopter of the SunSpec standard for interoperability in solar PV. He was also one of the first implementers of the DNP3 User Group AN2013-001 standard, which defined SCADA control for smart inverter functions including connection control, real power curtailment, power factor adjustment, and semi-autonomous functions including volt-var and volt-watt curves. Tom is a member of the SunSpec Alliance.