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Return on Investment
Helping the Environment and Your Bottom Line
Rising prices and increased demand for water in the South Bay Area create a business case for operating more cost-effective, eco-friendly cooling systems.

With California’s drinking water in increasingly short supply, it’s not surprising that managers looking to expand or update their cooling systems are showing interest in recycled water. The fact that recycled water is sold for about half as much as potable water is especially appealing for those wanting to help both the environment and their bottom line.

Potable and recycled water have different quality parameters, so if you switch to the more eco-friendly option, you may need to add or modify treatment systems or change cycles of concentration. This website provides the tools and information you need to evaluate your return on investment.

Annual Cost Savings
Calculate your annual cost savings: The ongoing cost savings from a cooling tower conversion will come from the reduced cost of recycled water. Find out how much water your cooling tower is using now and how much it would use on recycled water. You may need to use more or less recycled water than you do with potable water, depending on the cycles of concentration you can achieve; your cooling tower treatment vendor can help you calculate this.

Your ongoing water treatment costs may change as well. Use the SBWR water quality information to calculate any changes in water treatment costs resulting from switching to recycled water. Depending on your potable water source before conversion, you may see an increase or decrease in treatment costs. Add or subtract these costs from your annual water cost savings.

Capital Costs
Calculate your one-time capital costs: Locate the closest recycled water point of connection to your facility with our system map. Then, use our design tools to design the capital improvements needed to connect your system and estimate the costs associated with these improvements.

Divide the capital costs by the annual costs savings to determine the return on your investment. Depending on how much water your cooling tower consumes and the complexity of connecting your site, you may find that converting your cooling tower to recycled water has an attractive return on investment.