EnergyDistrict

Operated by SPV-009 (MR-Geothermal), the geothermal programme is structured as a multi-phase 450-550MW generation portfolio scaling from an initial 100-150MW Phase 2 build-out. Proven flash-steam and binary-cycle plants displace ~496,000 tCO2e/yr of coal-heavy Sumatra grid emissions (0.78 tCO2e/MWh baseline). Under the ACTA zero-double-counting ledger, 352,850 tCO2e/yr is retired internally to guarantee 100% Scope 2 neutrality for mainland industrial SPVs, while 143,150 tCO2e/yr of surplus grid-export abatement is monetised externally under SRN PPI / Verra ACM0002 (+US$23.81M Base / +US$43.76M Upside Carbon NPV). Waste heat from the generation cycle feeds directly into the brine valorisation crystallisation units.

Operated by SPV-031 (MR-Hydrogen), the green hydrogen facility runs PEM (Proton Exchange Membrane) electrolysers at 70-80% conversion efficiency powered entirely by geothermal electricity. Producing 10,000+ tonnes per year initially and scaling across Phase 3, the 55-140MW electrolysis load acts as a flexible demand balancer for the internal grid while displacing grey hydrogen and fossil marine/industrial fuels. By 2047, SPV-031 generates 339,000 tCO2e/yr in verified Verra AM0124 / Gold Standard credits (3.85M tCO2e cumulative), adding +US$52.30M (Base) to +US$97.92M (Article 6.2 Upside) in direct Carbon NPV.

Operated by SPV-032 (MR-GCC), the mainland district includes a dedicated facility for HVDC (High-Voltage Direct Current) subsea cable manufacturing and the 300-400MW interconnector linking Padang to Siberut Island. By replacing isolated marine-diesel island power generation (US$0.28-$0.38/kWh) with mainland geothermal baseload at US$0.07-$0.09/kWh, SPV-032 cuts utility OPEX across all Siberut resorts, hospitals, and data centres by 65%-75% while retiring 175,000 tCO2e/yr internally on ACTA.

The Energy District does not exist merely to sell electricity. It makes every other operation across Mentawai Resources (HC-MR) and Siberut Island structurally more profitable and carbon-negative. Across HC-MR's 10 industrial SPVs, verified carbon cashflows add +US$164.66M (Base, +52.7%) to +US$307.52M (Upside, +98.5%) on top of its US$312.3M pre-carbon infrastructure NPV, while enabling the 220 MW dual-hub data centre (SPV-014) to command a 15%-25% sovereign green AI compute tariff premium.