Ninewatt, a fast-growing climate-tech startup based in South Korea, is building AI-powered platforms that transform building energy data into actionable insights—helping global property owners reduce energy costs, comply with carbon regulations, and make smarter investment decisions, all without hardware installations.

AI-powered energy optimization

• Ninewatt develops intelligent energy platforms that simulate, analyze, and optimize building energy use through AI, enabling smarter decisions without additional hardware.

From retrofit planning to real-time response

• Our solutions support the full energy lifecycle—from renovation planning (WATTI), savings estimation (Save-E), to real-time tariff simulation and decision support (Opti).

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Proven across 100+ buildings

• Our solutions, including SEI built with LS Electric, have been deployed in over 100 large-scale factories and offices in Korea—helping users save up to 12% in electricity costs and reduce reporting time by 80%, all with no extra hardware.

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Built for global standards and scale

• From U.S. deployments in collaboration with global BMS companies to joint R&D with UCL in London, Ninewatt’s platforms are API-ready and built to adapt to diverse utilities, policies, and markets.

Opti

• Opti is an AI-powered energy assistant for buildings.

• Real-time tariff viewer & optimal rate recommendation

• PV/ESS capacity & ROI simulation

• Peer building benchmarking

• 80% faster reporting with AI assistant (replaces spreadsheet-based M&V)

• API-enabled for rapid PoC and portfolio-level deployment