The GDP energy intensity in Japan is forecasted to decline steadily from 73.3 kg of oil equivalent per $1,000 PPP in 2024 to 67.75 in 2028. This represents a year-on-year decrease of approximately 1.96% to 2.02% during the forecast period, a trend consistent with Japan's historical focus on energy efficiency improvements. The five-year compound annual growth rate (CAGR) reveals an average decrease of 1.92% annually from 2024 to 2028.

Future trends to watch for include:

Technological advancements in energy-saving technologies and renewable energy adoption.
Evolving government policies aimed at reducing carbon emissions.
The impact of international energy market fluctuations on Japan's energy efficiency strategies.