Synergies in Water Efficiency (WE)

The best LEED strategies don’t solve one problem—they solve multiple problems at once.

Big Picture

The synergies within Water Efficiency—and across other LEED categories—are easy to spot once you understand the system.

👉 For example:

• Prerequisites and credits naturally build on each other
  • Indoor Water Use Reduction (Prereq → Credit)
  • Outdoor Water Use Reduction (Prereq → Credit)

👉 But the real value comes from:

Strategies that help achieve multiple credits at the same time

💡 Core Strategies That Unlock Multiple Credits

🚿 1. Efficient Fixtures (Indoor Water + Energy)

Strategy:

• low-flow fixtures
• WaterSense products
• efficient appliances

Benefits:

• reduces indoor water use
• reduces hot water demand

🔗 Credit Connection:

• WE → Indoor Water Use Reduction
• EA → Optimize Energy Performance

🧠 Why it matters:

Heating water requires energy → less hot water = less energy use

🔥 2. Domestic Hot Water Reduction

Strategy:

• low-flow showerheads
• efficient faucets
• efficient dishwashers

Benefits:

• reduces water consumption
• reduces energy for heating

🔗 Credit Connection:

• WE → Indoor Water Use Reduction
• EA → Optimize Energy Performance

❄️ 3. Cooling Tower Optimization (Water + Energy Nexus)

Strategy:

• increase cycles of concentration
• use nonpotable water
• optimize system design

Benefits:

• reduces cooling tower makeup water
• improves HVAC efficiency

🔗 Credit Connection:

• WE → Cooling Tower Water Use
• EA → Optimize Energy Performance

🧠 Key Insight:

Cooling systems use both water and energy → improving one improves the other

🌿 4. Efficient Irrigation Systems

Strategy:

• drip irrigation
• smart controllers
• native/adaptive plants

Benefits:

• reduces irrigation water use
• reduces pumping energy

🔗 Credit Connection:

• WE → Outdoor Water Use Reduction
• EA → Reduced energy for pumping