Energy Benchmarks. Goal: Identify Energy Efficiency Opportunities in Cleanrooms Through Comparison of Benchmark Data. Cleanroom Energy Benchmarking. In California many industries rely on Cleanrooms:. Why Benchmark High-tech Buildings?. From PG&E’s perspective:
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Identify Energy Efficiency Opportunities in Cleanrooms Through Comparison of Benchmark Data
From PG&E’s perspective:
PG&E saw that the market was large and growing. In California:
Cleanroom owners and facility engineers saw an opportunity to determine their energy end use, compare their efficiency to others, and potentially find efficiency improvement opportunities or uncover operational problems.
From a public goods perspective:
Some Results and observations to date
Energy End Use
Recirculation of air in cleanrooms
Design vs. Measured
Why are Design Efficiencies less than Measured Efficiencies?
Design efficiency is generally understated because larger power consumption (kW) is generally assumed. (nameplate vs. actual)
Idea! As a building owner,
Why not specify a system efficiency?
System Performance Target
Make-up Air Comparison
Efficiency is influenced by:
Design vs. Measured
Air-Change Rate Comparison
Chilled Water Systems Comparison
Existing efficiency information for chilled water plants is under-utilized.
LBNL Cleanroom Programming Guide Provides a Way for Owners and Designers to Explore Efficient Options During the Early Stages of a Project.
on life cycle cost
often represents opportunity
Designers (and constructors) will provide what their customers ask for.
If you are an owner and want efficient systems, ask for them.
If you are a designer, show owners the benefits of an efficient design – often lower first cost or early payback. Huge benefits over the life cycle.