Investor Presentaiton

Heatcube 2.0 Key Metrics 。 Charging capacity: 10, 20 or 30MW 。 Storage capacity: 16 – 96 MWh 。 Storage time: long duration (> 8 hours) o Discharge capacity: up to 5 MW o Discharge in form of steam ○ Temperature range of steam: 170-415 C о о 0 0 Lifetime 25 years RTE of more than 90%* Less than 1 minute from standby to charge, discharge or simultaneous charge and discharge Footprint: 170 sq.m - 310 sq.m Height: -15m Weight: 400 MT - 1,500 MT * Based on size, total heat produced and the ambient conditions of the specific area. KYOZO KYOTO

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