Water and energy are ingeniously connected between each other. Energy which is produced by water uses and pollutes large amounts of water. Likewise, providing and using water requires large amounts of energy.

It was not all the time. Energy from water was ignored throughout the 20th century. But it is a very big connection between water and energy. Water systems were designed and constructed with the assumption that energy would be cheap and abundant. And though some people have long argued that we could achieve peak energy and more recently, peak water, assumptions about abundance were the status quo. The era of abundance is coming to an end and is being replaced by the era of limits. These conflicts between energy production and water availability become more discussing than ever, even in areas not traditionally associated with water-supply constraints. Additionally, rising energy costs and concerns about greenhouse gas emissions are forcing some water managers to seek ways optimize the energy efficiency of their water systems and reduce overall water use.

The Pacific Institute conducts research on different facets of the water-energy nexus. It is created for better understanding the barriers and opportunities for integration and to develop tools to promote integrated water and energy policy and decision-making.