Info hub
The engineering behind the numbers.
Every figure on the calculator traces back to a primary source — PVGIS-ERA5 irradiance, AIKO module datasheets, MEA tariff bulletins, NREL SAM tracker benchmarks, Thai bank term sheets. This hub is where the trail starts. Documents open in the Access Gateway — sign in with a goco.bz account.
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Pick House, Townhouse / villa, Commercial building, or Tracker comparison. Get system size, annual savings, payback, IRR, and a financed-equity scenario in one place.
Run the calculatorEngineering deliverables
Bangkok roof yield matrix
Annual specific yield (kWh/kWp) for AIKO 650 W bifacial flush-mount across 8 tilts and 6 azimuths at 13.9°N. Anchored to PVGIS-ERA5.
Read →Site exposure & yield analysis (Pathum Thani)
15-panel dual-axis tracker site, NASA POWER + PVGIS methodology, monthly profile, sensitivity bands, loss chain.
Read →MEA tariff schedules — 2026
Residential 1.1 (flat), 1.2 (TOU), commercial type 3 / 4 TOU; VSPP buy-back rate; annual escalation methodology.
Read →Battery sizing methodology
24-hour dispatch model, round-trip efficiency, depth-of-discharge, peak-shift economics, default load shapes by audience.
Read →Thai bank loan options — green CapEx
GSB, EXIM, SCB, MEA KEN, Bangkok Bank, KBank, Krungsri, SME D Bank — rates, tenors, fit scores, levered economics.
Read →Phoem Sin 8-rai capacity study
Greenfield ground-mount 1.2 MWp / 1.0 MWac — capacity, yield, economics, permits, risks.
Read →Structural — Solar Tracker A2 (NDN model)
Pivot-reaction envelope, 11-case wind/dead-load combos, JIMI-TECH SDE-series sizing.
Read →Product catalog — solar (321 SKUs)
Modules, inverters, BoS, mounting from Slack ingest + Gemini extraction across 52 source documents.
Read →For audits, BOI submissions, or term-sheet diligence, contact us for the underlying spreadsheets and PVsyst / SAM project files.