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On-Grid & Off-Grid Solar, BESS & Generators

Complete On-Grid & Off-Grid Solar, Battery Storage (BESS) & Generators

Most solar contractors refuse to touch standby generators, and most generator dealers don’t understand solar inverters or battery storage. When a storm knocks out the utility grid, uncoordinated solar and generator systems fight each other—causing backfeed trips, blown inverter boards, or drained batteries.

NYREER engineers all three technologies as a single, unified microgrid: combining USA & German Solar Arrays, Lithium-Iron-Phosphate Battery Storage (BESS), and Kohler, Generac, or Caterpillar Generators for both grid-tied hybrid resilience and true 365-day off-grid independence.


How NYREER’s Unified Tri-Brid Microgrid Architecture Works

  1. Primary Clean Generation (AC/DC-Coupled Solar PV): During daylight hours, your solar array powers facility or residential loads first and routes surplus energy directly into your battery bank.
  2. Instantaneous Silent Transfer (Sub-Cycle BESS Bridge): When the utility grid fails, your microgrid interconnection switch isolates from the utility in milliseconds—keeping sensitive electronics, HVAC, well pumps, and refrigeration running silently off battery storage without a single blink.
  3. Automated Generator Recharge Cycling (65%–80% Fuel Savings): During extended multi-day Northeast winter storms when snow covers the panels and battery State-of-Charge (SoC) reaches 20%, the microgrid controller automatically starts your Kohler, Generac, or Cat generator via two-wire dry contact. The generator runs at its optimal 80% load efficiency for 2–3 hours to recharge the battery bank to 90%, then shuts off—slashing fuel burn, noise, and engine run-hours by up to 80%.

Grid-Tied Hybrid vs. True Off-Grid Engineering

  • Grid-Tied Hybrid Resilience (Commercial & Residential): Operates in parallel with National Grid, NYSEG, Con Edison, Central Hudson, PSE&G, or Eversource to capture net metering and peak-demand shaving every day while holding an automatic multi-week islanding reserve for blackouts.
  • True Autonomous Off-Grid Properties (Adirondacks, Catskills, Hudson Valley, VT & MA): For mountain estates, agricultural properties, and remote facilities where utility line extensions cost $100,000 to $500,000+, NYREER engineers standalone 365-day power plants sized for worst-case December solar irradiance and winter heating loads.

Want to model your daily kWh load, battery autonomy hours, and generator fuel runtime? Launch our Interactive Hybrid Solar + BESS + Generator Configurator →.

Ready to Engineer Resilient Power or High-Throughput EV Charging?

Speak directly with NYREER’s senior electrical engineers and master technicians serving NY, NJ, VT, and MA.