Add solar hardware plan: Deye hybrid inverters + Gobel Power 271 kWh BESS

Includes open engineering checks: battery rack voltage vs Deye model
window, Gobel safety certifications, and peak-shaving-scale framing

docs/suppliers/equipment-suppliers.md

@@ -139,7 +139,21 @@ Open: identify and qualify Thai/regional PVC compound producers.
 
 ## 8. Utilities and Site (customer-supplied around the machines)
 
-- Solar PV installation (large; sizing open until site selection)
+- Solar PV installation (large; panel and array sizing open until site
+  selection)
+- Solar inverters: multiple Deye three-phase HV hybrid units. Verified
+  series SUN-29.9/30/35/40/50K-SG01HP3 (battery window 160-800 V, up to 10
+  in parallel, IEC 61727/62116/62109 certified); larger SUN-60/70/75/80K
+  SG02HP3 series to be confirmed via datasheet. Thai distribution exists
+  (Solar Nicolo, solaris.co.th)
+- Battery storage: Gobel Power (Shenzhen, est. 2012) GP-SRA-HV314 HV rack
+  BESS, 271 kWh = 15 stacked 18 kWh packs (LFP 314 Ah, 1P18S), DC 225-985 V,
+  8000+ cycles, ~135 kW continuous discharge at 0.5P, CAN/RS485 with "Deye
+  CAN HV" protocol support. Listed USD 39,900-58,000, 50-60 day lead from
+  China. Open checks: rack voltage vs. chosen Deye model's battery window
+  (full 15-pack rack can exceed 800 V), safety certifications
+  (UN38.3, IEC 62619, CE) not published, no performance warranty published,
+  no Thai distributor
 - Steam generation (electric, biomass, or solar-thermal assist under
   evaluation; Deepgrooves NL runs presses on wood-fired biomass boilers as a
   precedent)