# Presentation: 020696

## the lawrence berkeley national laboratory: a case study

*Revised 12/2/04*

## Dale Sartor, P.E.

**Dale Sartor, P.E.**
- Lawrence Berkeley National Laboratory
- Applications Team
- MS 90-3011
- University of California
- Berkeley, CA 94720
- _[DASartor](mailto:DASartor@LBL.gov)__[@LBL.gov](mailto:DASartor@LBL.gov)_
- (510) 486-5988
- http://Ateam.LBL.gov

## Case Study:The Lawrence BerkeleyNational Laboratory

- The LBNL In-House Energy Management Program
-   Retrofit Projects
-   New Construction
-   Program Cost and    Impact
-   Utility Cost    Management
-   Lessons Learned

## Strategies

-   Organizational    structure
-   IHEM studies and    retrofits
-   Life-cycle cost    effective designs
-   Maintenance
-   Lowest utility cost
-   Recharge users
-   Employee awareness
-   Track performance
-   R & D

## Key Barrier and Success Factor

- Institutional Challenge:
- 		Success = Change
- Key to Success:
- 		Upper Management Support

## Staff

-  Dedicated in-house	engineers, and	project managers.
-  Scientists borrowed	from research        		division.
-  Consultants.

## Retrofit Projects

- Direct funded
- Utility surcharge funded
- Energy Savings Performance Contract

- Energy Efficiency Studies (40+ since 1985)
- Energy Efficiency Retrofits (30+)

## Typical Retrofit Projects

**Typical Retrofit Projects**

- Constant Velocity   VAV Fume Hood   control.
-  VFD control for fans    and pumps.
-  DDC/EMCS (over    8,000 points in     place).
-  T-8/Electronic    Ballast lighting.
-  Occupancy sensor    controlled lighting.
-  LED exit signs.
-  CFLs.

## Typical RetrofitProjects, continued

**Typical Retrofit****Projects, continued**

- Premium Efficiency   Motors.
- Consolidation of   Boiler and Chiller   plants.
- Modular boilers.
- Small base loaded    chillers.

## Typical Retrofit Projects, continued

**Typical Retrofit Projects, continued**

-  Mechanical equipment
-    replacements.
-  Waterside economizers.
-  Metering.
-  Process.

## Instrumented Surveys

- Uncovers “hidden” opportunities.
- Improves quantification of savings.
- Aids in commissioning and persistence.
- Can save purchase of new unneeded capacity.

## New Construction

**New Construction**

- Conceptual Design Report
- Energy Efficiency Report
- Project team participation
- Good retrofit projects

## Reduce Load

-   Focus on the big hits

## Goal

**Goal**

-  Energy Efficiency is the
-    Base Case!

## Opportunities are Real

-   41% reduction in energy use per square foot                              from 1985 baseline
-   $4.4 million/year more research based on 1985                  energy prices
-   Pollution savings
-   Improved worker productivity
-   Safer environment
-   Improved reliability

## Opportunities are Real

**Reduction in Buildings BTUs/GSF**

**Opportunities are Real**

## Investment Required

**Investment Required**

- Studies:  $2.6 million
- Retrofit:  $20 million

## Utility Cost Management

**Utility Cost Management**

-  Billing errors
-    (Typically $75-
-    100K/year)
-  Electricity:  WAPA @
-    $.035/KWh (-)
-  Natural Gas:  Defense
-    Fuel Supply Center
-    Saving $.10/Therm
-  Overall 40% savings
-    due to rate reduction

## Integrated Supply and Demand Side Energy Management

- Potential Savings Over 60%
-  	Baseline:		$11.0 million
-  	Actual:		$  3.8 million
-  	Overall savings: 	$7.2 million (or 65%)

## Lessons Learned

- Outside air dominant load - focus on HVAC.
- Fume hood VAV (constant velocity) safe and   efficient.
- DDC/EMCS to zone.
- Commissioning and ongoing O&M important.
- Don’t oversize boilers and chillers - use modular   units.
-  Avoid reheat.
- Technology is improving.

## Success Factors

**Success Factors**

-  Champion
-  Identify hot buttons
-  Upper management 	support

## End of Session

**End of Session**