From 6281c5b223f142b5ccc098aafeea507bc222b78e Mon Sep 17 00:00:00 2001 From: grabowski Date: Fri, 17 Jul 2026 12:41:52 +0700 Subject: [PATCH] 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 --- README.md | 11 +++++++++++ docs/suppliers/equipment-suppliers.md | 16 +++++++++++++++- 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 3474168..582f857 100644 --- a/README.md +++ b/README.md @@ -177,6 +177,17 @@ at 10 bar / 180 °C) and the 250 kW cooling system. - A large rooftop/ground PV installation is planned. Northern Thailand's solar irradiance is favorable, and daytime-heavy production shifts align well with PV output. +- The chosen hardware direction: multiple large **Deye** three-phase hybrid + inverters (30 to 80 kW class, parallelable up to 10 units) paired with a + **Gobel Power** high-voltage LiFePO4 battery stack at **271 kWh** (15 + stacked 18 kWh packs, LFP 314 Ah cells, rated 8000+ cycles). Deye is an + officially supported protocol on the Gobel BMS, and Deye has established + Thai distribution. Two engineering checks are open: matching the battery + rack's DC voltage window to the specific Deye model (a full 15-pack rack + can exceed the 800 V window of the smaller Deye series), and obtaining + Gobel's safety certifications (not published) for a Thai commercial + install. At 271 kWh the stack is a peak-shaving and ride-through buffer, + not full off-grid autonomy, against loads like the 250 kW cooling system. - The machine load and cooling system are straightforward PV targets. - Steam is the open engineering question. Options under evaluation include an electric boiler (maximizes the solar share), a biomass boiler (locally diff --git a/docs/suppliers/equipment-suppliers.md b/docs/suppliers/equipment-suppliers.md index 86de72a..507bbcf 100644 --- a/docs/suppliers/equipment-suppliers.md +++ b/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)