検索

電力系統（電力グリッド）とは、電源・需要家・送電系統のすべてを包含するシステム全体を表す用語である。電力の需給バランスは供給電力が無限であれば常に成り立つが、現実には最大需要kWを予測し、用意した上で、変動する需要に応じて適宜適当な定格kWの発電機を起動させる。起動・停止はグリッドの運用を担うセンター（SO）の指令で行われる。再生可能エネルギーは天候により変動するため変動電源と呼ばれる。変動電源を電力系統に統合することは、変動電源の特性と電力系統の柔軟性がどのように整合するかにかかっている。これからの日本で変動電源を電力需給ミックスの重要な柱とするには、広大な排他的経済水域（EEZ）における洋上風力発電の野心的な開発が必要であり、大型化...

A blog outlining how governments, especially in the G20, help the private sector to manage biological resources. Recommendations are based mostly on decisions by the Parties to the Convention on Biological Diversity.

Over the years, the relationship between the environment and disasters has received significant attention. This is largely due to the emerging recognition that environmental changes - climate change, land use and natural resource degradation make communities more vulnerable to disaster impacts. There is a need to break this nexus through...

Increasing attention is being paid to lifestyles in sustainability research and policymaking. Applying a foresight approach to sustainable lifestyles supports this increased focus by highlighting possible futures while also empowering citizens through a participatory process. Foresight has its origins in theory and practice to serve the...

今だからこそ考えたい、私たちのライフスタイルが地球につける｢足跡｣［前編

今だからこそ考えたい、私たちのライフスタイルが地球につける｢足跡｣［後編］

流通業界に向けてSDGsの基礎を解説した寄稿

Tonle Sap Lake is the largest flood-pulsed freshwater lake in Southeast Asia, supporting the livelihoods of millions of people living on and around the lake. However, recent changes in the lake water environment due to deterioration of water quality and decline in biological resources have caused various problems to local people living in floating...

Because of the burgeoning urban population, there is huge pressure on both natural resources and basic urban infrastructure, especially sewerage systems, with Indonesia as no exception. It is estimated that about 95% of human waste in Indonesia ends up untreated or partially treated in septic tanks before being discharged in the natural environment...

This study develops a projection model of future population distribution on the basis of Japan’s current depopulation trend and applies this model to scenario analyses that assume population compactification and dispersion. The model enables a description of population migration at two levels. First, municipal populations are projected using the...