Next-generation Digital Infrastructure Construction

Project Summary

Up to 141 billion yen

Using next-generation power semiconductors, reduce the level of energy loss in power converters by at least 50%, and, during mass production, realize similar cost levels to those of Si power semiconductors.
Reduce defect density in 8-inch (200mm) SiC wafers by at least one order of magnitude and reduce costs.
Realize energy efficiency of at least 40% compared to data centers in use when R&D begins.

Estimates of annual CO₂ emissions per vehicle calculated on basis of electric vehicles CO₂ emissions and average driving distances for vehicles in Japan.
Dissemination rate of electric vehicles is expected to be 50% in 2030 and 100% in 2050.
Electric vehicles energy loss ratio is expected to be 20% and impact of cutting loss through outcomes realized by this project is expected to be 50%.

Energy loss in power converters used for transmission is expected to be reduced through utilizing offshore wind power as a substitute for thermal power.
Capacity of offshore wind power installations in Japan is expected to range from 1.68 GW to 3.68 GW in 2030 and total 45 GW by 2050, and global capacity is expected to reach 234 GW in 2030 and 1,400 GW in 2050.
Regarding the facility utilization rate of 33.2% and the average electric power emission coefficient of thermal power of 0.66 kg-CO₂/kWh, these figures were used for the GI project “Cost Reductions for Offshore Wind Power Generation.”
Energy loss in conventional semiconductor converters is currently 2% and the impact of cutting loss as result of project outcomes is expected to be 50%.

Considering the rate of increase in power consumption by data centers around the world since 2019, power consumption in 2030 and 2050 is estimated below.
Table: Power consumption by data centers within and outside Japan (TWh)
2019 2030 2050

Japan 14 18 43

World 200 252 612
Power sources are expected to account for 25% of energy consumption and the impact of reducing loss through project outcomes is expected to be 50%.

Table: Power consumption by data centers within and outside Japan (TWh)
	2019	2030	2050
Japan	14	18	43
World	200	252	612

Energy efficiency of 40% are expected to be realized by data centers and the dissemination rate of energy efficiency technologies is expected to be 40% in 2030 and 100% in 2050.
CO₂ emissions are expected to be reduced through power generation cuts made possible by energy efficiency activities.

For 2050, the estimated market size has been calculated on the assumption that, using the compound annual growth rate (CAGR), the global power semiconductor market totaled approximately 3.2 trillion yen in 2020 and will total 5 trillion yen in 2030.
For 2050, the estimated market size has been calculated on the assumption that the average CAGR up to 2050 will be approximately 10%.

In 2019, global investment in data centers totaled US$214.9 billion and Japanese investment totaled US$12.1 billion. By 2025, it is estimated that global investment will grow to US$271.6 billion (at a CAGR of 4％) and Japanese investment will grow to US$13.2 billion (at a CAGR of 1.5％).
Estimates based on assumption that global investment will continue to grow at a CAGR of 4% and Japanese investment will also continue increasing at a CAGR of 1.5%.