by Lydian Miles-Monaghan, mtvSolar Director of Advanced Energy Storage

Our extensive solar setup in Hagerstown, MD, has been a phenomenal investment. With a total of 28.94 kWDC PV capacity from 91 modules, split between ground and roof mounts installed in 2017 and 2019 respectively, the system completely paid for itself by October 2023. We effectively bank about 5 MWh each summer through Maryland’s net metering, which covers our winter usage.  Every spring, Potomac Edison cuts us a check.

This robust system, featuring twin 10kW SolarEdge inverters, Schneider XW systems, and eGauge monitoring, along with a formidable 125 kWh of battery storage (including my EV’s battery), has delivered substantial benefits. I’ve seen an extra $36,000 in my bank account since 2017, saved 324,784 lbs of CO2 emissions (the equivalent of 2,454 trees), and driven over 28,000 solar-powered miles in my EV. Power outages are a thing of the past, and I have absolutely no concerns about rising electric rates.

Our PV Spec:

24.14kWDC tied to twin 10k SolarEdge inverters

4.8kWDC is DC coupled to Schneider XW systems

91x Solar Modules, average 330w each

eGauge Circuit-Level Monitoring System

3x Schneider XW6848 Inverters – AC coupled together for power sharing

1x 20kWh DIY LFP battery

1x 5kWh Fortress LFP battery

1x 40kWh AGM Unigy II Battery

1x 60kWh battery in EV with 12v-48v DC converter for charging house batteries

Total 28.94kWDC PV Capacity.

Ground mount installed 2017, roof mount 2019.  The PV system paid off Oct 2023.  We bank approximately 5MWh each summer, and draw on it in winter via 1:1 net metering in Maryland.