======================================================================== GRIDLINQ V2G CASE STUDY SUMMARY ======================================================================== NORTHPOINT MARINA Seasonal wet slips + winter dry storage — Traverse City, Michigan Turning an eight-month dwell season into a grid asset 220 seasonal slips where vessels sit plugged in for eight months. Forty bidirectional pedestals now bid stored battery capacity into the utility's summer peak program. ------------------------------------------------------------------------ PROPERTY PROFILE ------------------------------------------------------------------------ Scale: 220 slips Service: 50A throughout, 800A spare panel capacity V2G enabled: 40 bidirectional pedestals ------------------------------------------------------------------------ THE STARTING POINT ------------------------------------------------------------------------ - Electricity was bundled into slip fees, so the marina absorbed every kilowatt-hour of shore power. - A growing fleet of electric and hybrid cruisers pushed the C dock loop close to its service limit. - Summer afternoon demand charges were the single largest line item on the utility bill. ------------------------------------------------------------------------ THE BUILD ------------------------------------------------------------------------ Phase 1: Metering first Every pedestal was submetered before any bidirectional hardware landed, giving the marina a real baseline within one billing cycle. Phase 2: Pilot on C dock Sixteen bidirectional pedestals went onto the longest-dwell loop, where boats stay connected from May through October. Phase 3: Program enrollment Aggregated slip capacity was enrolled in the utility's summer peak-shaving program with GridLinq handling dispatch and settlement. Phase 4: Full-season expansion Twenty-four more pedestals were added the following spring, funded entirely out of first-year program revenue. ------------------------------------------------------------------------ RESULTS ------------------------------------------------------------------------ $61k First full-season grid program revenue 38% Reduction in peak demand charges 0 Upfront capital from the marina ------------------------------------------------------------------------ MEASURED OUTCOMES (BEFORE / AFTER) ------------------------------------------------------------------------ Annual utility spend Before: $148,000 After: $91,400 Change: -38% Summer peak demand Before: 620 kW After: 384 kW Change: -236 kW Shore power billed to slip holders Before: 0% metered After: 100% metered Change: +$22k recovered Grid program revenue Before: $0 After: $61,000 / season Change: new line item ------------------------------------------------------------------------ PROJECT ECONOMICS ------------------------------------------------------------------------ Annual value: $83,000 combined revenue and avoided cost Capital: $0 from the marina — GridLinq funded Payback: Immediate — cash positive in month one Time to value: 14 weeks from survey to first dispatch ------------------------------------------------------------------------ "We were paying for power our slip holders used and getting nothing back. Now the boats sitting on C dock are the most productive thing on the property in August." — Harbormaster, Northpoint Marina ======================================================================== Want this on your property? Book a free 30-minute assessment: https://gridlinq.dev/#contact Full case study: https://gridlinq.dev/case-studies/northpoint-marina ========================================================================