List of Changes - Amendment-4

SOLICITATION NUMBER: GS-11P-10-YA-C-0054

Amendment Number: 4

List of Changes

1) Evaluation Process (information added) on page 15 of Solicitation

2) Estimated Price Range on page number 3 of Solicitation

3) REPS-CERTS Document Added

4) Forms SF24 (when $10 million + requirements), SF25, and SF25A added

5) SBU Document Security Notice to Bidders Form Added

6) Period of Performance on page number 2 of Agreement

7) Contracting Officer's Representative (COR) on page number 3 of Agreement

8) Liquidated Damages on page number 3 of Agreement

9) Description below was removed (page 2 of Agreement Document):

Building Systems (S): Projects of this type may include the installation of high performance HVAC components in buildings which will both decrease energy consumption and operational cost. This project type may include some or all of the following:

· Installing new high efficiency chillers to cool the building;

· Replacement of existing primary and secondary chilled water pumps and condenser water with high efficiency pumps;

· Replacement of motor control centers with high efficiency ones;

· Replacement of associated ancillary equipment;

· Upgrading the chilled water plant to direct digital controls;

· Installing and/or upgrading Variable Frequency Drives to air handlers, cooling tower fans, and pumps;

· Installing air- and water-side economizers in the air handlers;

· Installing high-efficiency boilers; and,

· Replacing existing mechanical systems with geothermal-based systems (ground source heat pump technology).

Building Tune-up (T): Projects of this type will reduce energy demand, reduce operation and maintenance costs, improve building system control, and occupant comfort. This work has the greatest initial impact on energy consumption per investment dollar. Work may also include hardware and software upgrades to the building control systems or replacing the existing Building Automation Software systems. These building tune-ups include many small-cost, high-impact changes to motors, sensors, and equipment. Data input devices such as advanced utility meters and meteorological instrumentation may also be included in these projects.

Lighting Replacement (L): Projects of this type involve a high-performance lighting replacement to decrease energy consumption and cost while improving working conditions and productivity for building occupants. In most cases, it is expected that the work will not require re-location of people working in the building. The project may include the following:

· Highly efficient overhead lighting fixtures;

· Lower overhead lighting intensity supplemented with task lighting to create better lighting levels at the work surface;

· Dimming fluorescent ballasts for all perimeter areas with windows, so that lights will dim as incoming daylight supplies more of the required light level, and occupancy sensors throughout;

· LED lighting in some special applications, such as parking garages, fire exit signage;

· Stairwell lighting with new sensors & reduced 24/7 requirements;

· More user controls; and,

· Central on-off lighting control through the building energy management control system.