Follow along day-by-day as we build out a powerful off-grid solar system using the EG4 FlexBOSS21 inverter and GridBOSS MID 200A service entrance panel — right here in East Texas. These Shorts break the full build into bite-sized steps: mounting panels, wiring, safety components, battery banks, and final system testing. This is your real-world look at a full EG4 build using Signature Solar gear — no fluff, just practical solar installation from start to finish. Full-length, in-depth videos are coming later, but don’t miss these daily hits of progress. Consider using my affiliate links when shopping 👇 ⚡️ EG4 FlexBOSS21 16kw AC Hybrid Inverter: signaturesolar.com/eg4-flexboss21-16kw-ac-hybrid-i… 🧠 EG4 GridBOSS : signaturesolar.com/eg4-gridboss-vs-mid-200a-servic… ☀️ 430W Bifacial Solar Panel: signaturesolar.com/philadelphia-solar-430w-solar-p… 🔋 EG4 WallMount All Weather Lithium Battery: signaturesolar.com/eg4-wallmount-all-weather-lithi… 🔆 Signature Solar: signaturesolar.com/?ref=esttxthst 🔗 Amazon: www.amazon.com?tag=youtube-eth-20 🏷️ Lowe’s Deals of the Day: shoplowes.me/4mbGC1e ---- 👇 Here’s what we’re installing so far: Solar Panels & Mounting Hardware • 28x Philadelphia Solar 430W Bifacial Solar Panels • 50x Iron Ridge XR100 Rails (7 ft) – Black • 40x Iron Ridge Bonded Splices – XR100 • 46x Iron Ridge Universal Module Clamps – Black • 20x Iron Ridge End Clamps (30–40mm) – Black • 10x Iron Ridge Grounding Lugs – Low Profile • 84x Iron Ridge Halo Ultra Grip HUG – Black, Deck Mount Wiring & Connectors • 4 sets of Stäubli MC4 Connectors (12/10 AWG) • 2 spools (100 ft) of 10 AWG Copper PV Wire – Black & Red Disconnects & Safety Devices • 1x IMO DC Disconnect Rooftop Isolator Switch – 4 Pole, 2 String • 1x IMO Emergency Stop Button – 500VAC, Twist-Release Battery & Inverter System • EG4 FlexBOSS21 16kW AC Hybrid Inverter • 3x EG4 PowerPro Batteries (42.9 kWh Total Capacity) • EG4 GridBOSS MID V2 – 200A Service Entrance Optimization & Monitoring • 28x Tigo TS4-A-O Optimizers (20A, 1.2M Cable, MC4) • Tigo Cloud Connect Advanced Kit (TAP, DIN Rail PS, Outdoor Box) 👇 Affiliate links and gear in every video description. ⚠️ I’m not an electrician — always consult a licensed pro. #FlexBOSS21 #GridBOSS #SolarBuild #DIYsolar #OffGridSolar #SignatureSolar #EG4 #SolarPower