Energy saving programs

Today’s water and energy systems are interdependent. Energy makes up the most expensive part of water delivery, and water is essential to generating many forms of energy.

As a recognized industry leader with a history of implementing innovative and cutting-edge practices and cost-effective programs, IRWD seeks to further improve, optimize, and reduce its energy consumption and greenhouse gas emissions with an Energy and GHG Master Plan.

Energy and greenhouse gas master plan

The plan identifies a portfolio of cost-effective projects to reduce the District’s existing and future energy usage and costs, and to reduce GHG emissions as required under future regulatory conditions.

Embedded energy plan

Embedded energy is the amount of energy used to develop, supply, and treat water. We completed an Embedded Energy Plan that quantifies energy use associated with each of our facilities involved in the production, treatment, distribution, collection, reuse, and disposal of water and biosolids.

Major benefits to the study include:

IRWD’s embedded energy reductions over time

The avoided cost of energy in water savings

Identification of most cost-effective areas for water conservation

Positioning IRWD for energy utility funding for water conservation programs

Renewable energy and energy-saving projects

IRWD is well known for its water efficiency and strives to conserve power and reduce dependency on fossil fuels as well. Here are some examples.

  • More than 2,3600 solar modules generate 1 MW of power at our Baker Water Treatment Plant.
  • A 250kW solar array is installed at IRWD’s Zone 3 reservoir.
  • A 7MW/34MWh network of high-efficiency lithium batteries stores energy and provides on-site power to our operations at six locations districtwide.
  • Nearly 700 solar panels on the roof of our Sand Canyon office building provide 20 percent of the building’s total energy needs.
  • IRWD’s Biosolids & Energy Recovery Facility harnesses biogas from the digestion process to power the plant. Heat from the turbines and sludge dryer helps hasten the production process.
  • IRWD received nearly $600,000 in Edison rebates and incentives for installing energy-saving features in the Irvine Desalter Project.

Save water, save energy, save money

With climate change concerns, pervasive droughts, and high energy prices across the country, nearly everyone is looking for ways to conserve resources and cut costs. The good news is that by using a little “water sense” we can all use less water, energy, and more.

More background information on saving water and energy can be found on the US EPA WaterSense Website. The State of California’s Save Our Water Campaign also has great water-saving suggestions.