B.3.17 Energy Conservation

This section contains established Energy Conservation Design Standards for new construction, major renovation projects, minor repair projects, and energy conservation projects for facilities on or operated by Fort Carson.  These Standards are in response to Federal law, Presidential Executive Orders, Department of Defense requirements, and U.S. Forces Command goals and requirements.  

• Fort Carson Energy Conservation Design Standards apply to all facilities on Fort Carson or for which Fort Carson is responsible to account for energy and water consumption costs.  This includes Fort Carson cantonment areas, training areas, ranges, Piñon Canyon Maneuver Site, recreation areas, and leased facilities, regardless of user, funding program, or parent command.  Facilities on real property controlled by Fort Carson that are funded and occupied by organizations not assigned to Fort Carson are included under these Standards, to include NAF facilities, AAFES, medical facilities, dental facilities, and the Defense Commissary System.  These Standards apply to the above facilities, regardless of the agent providing architectural/engineering design.

Designs will include all practical energy and water conservation measures determined to be life cycle cost effective.  
POC is Ed Tebo, (719) 524-3534.   

Projects Included 

• NEW CONSTRUCTION.  New construction includes large projects that are funded under the Military Construction, Army (MCA) program and under any of the various minor construction programs. 

• MAJOR RENOVATION.  Major renovation includes projects where the overall features of the building's envelope will be substantially changed, or if the changes include a substantial replacement of the building's heating, ventilating, air conditioning, lighting, plumbing, domestic hot water, or other energy or water consuming systems.  These Standards apply regardless of the funding program. 

• MINOR REPAIRS, MODIFICATIONS AND RENOVATIONS.  Minor Modifications include repair and/or replacement of windows, skylights, doors, lighting fixtures, HVAC equipment, domestic hot water, insulation, and similar type modifications to existing buildings. 

• CENTRAL HEATING, COOLING, AND DISTRIBUTION SYSTEMS.  These Standards apply to construction, renovation, or repair of major central heating, cooling, and distribution systems. 

• OUTDOOR LIGHTING.  These Standards apply to outdoor lighting to support such functions as POV parking, equipment parking, outdoor storage, outdoor training, outdoor recreation, and security lighting beyond 1.5 meters from a building or facility. 

Energy Conservation Requirements Documentation And Funding

All types of construction and renovation must comply with these standards. 

• NEW CONSTRUCTION.  All energy and water consuming features of new facilities must comply with "new building" standards.  DD1391 must reflect the energy use budget (EUB) target for the building or facility as specified in these Standards.  DD1391 documents prepared prior to publication of these Standards will be updated as appropriate to reflect energy standards, and additional funding will be sought, if required, to fund energy features not included in the original document. 

• MAJOR RENOVATION.  Energy and water conservation levels of facilities undergoing major renovation will comply with "new building" standards.  DD1391 documentation will include funding for replacement of lighting, plumbing, HVAC, insulation, glazing, and domestic hot water systems to bring the renovated facility into compliance with the appropriate EUB.  Funding to implement energy and water conservation measures must be included on Engineering Form 3086, prepared as part of the concept design. 

• MINOR REPAIR MODIFICATION AND RENOVATIONS.  Windows, skylights, doors, lighting fixtures, HVAC equipment, plumbing, domestic hot water, insulation, and similar features replaced as a result of minor repair, modification, and renovation, will comply with "new building" standards. Portions of the existing system (s) or building not affected by the repairs or modifications are not required to be replaced solely to comply with "new building" energy and water conservation standards unless included in an energy conservation project.  Whether in response to energy conservation programs or other reasons for change, authorization, design and funding documents will reflect the requirement and funding for energy features.

Energy Use Budget  

• The Energy Use Budget (EUB) targets for various type facilities are mandatory and predicated on Title 10 CFR, Subpart A, Part 435, "Energy Conservation Voluntary Performance Standards for New Commercial and Multi-family High Rise Residential Buildings, Mandatory for New Federal Buildings", the Federal Energy Management Act of 1988, the Energy Policy Act of 1992, Executive Order 12902, and Department of Defense energy goal requirements. 

• The EUB is the maximum building energy use (not including process energy) for which the building is to be designed.  The EUB is expressed in MBTU/KSf per year.  A check will be conducted by the design agent to verify that the Design Energy Usage (DEU) is within the EUB. 

• The DEU is defined as the computed annual energy usage of a proposed building design based on normal loads for maintaining comfort and amenities for the occupants.  Energy gained within the space of a building, resulting from process energy loads, may not be used in the calculation of the DEU to facilitate the verification of the DEU within the EUB. 

• Each design will have a unique calculation performed to determine the DEU utilizing the fuel conversion factors in Table I.  The expected non-process energy consumed for the health, comfort, and productivity of occupants (such as air-conditioning, heating, humidification, task and general lighting, ventilation and service hot water) will be included.  The operation hours will be the "HOURS PER DAY" and "DAYS PER WEEK" listed in COE AEI, Design Criteria, Chapter 11, Table 11-1 if not provided specifically by Fort Carson.  Process loads will not be included. Sensible and latent heat loads of people are non-process and will be included.  The annual energy saved, as a result of non-purchased renewable energy sources, such as from active or passive solar systems, will be allowed as credit to reduce the total DEU.

Table I

Fuel Conversion In Factors

*Electric resistive heating will not be included in designs for new or replacement heating systems at Fort Carson unless a waiver is obtained from the Installation Energy Manager.

• If the DEU is less than or equal to the EUB the design complies with this criteria.  If the DEU exceeds the EUB, the design will be revised to incorporate any other economically justified energy conservation measures that may not have been considered before.  The DEU will then be recalculated.  If the DEU still exceeds the EUB, a request for waiver will be forwarded to the Fort Carson Energy Program Manager, through the DPW, for approval.  Fort Carson will in turn request a waiver from U.S. Forces Command if appropriate.  A detailed justification as to why the EUB criteria cannot be met will be submitted with the waiver request.

• The EUB pertains to the energy consumed by buildings with the 1.5-meter line of the building with the following exceptions: 

  (1) The energy required to operate energy plants, systems, and equipment (including distribution system losses and gains) which rest outside the 1.5 meter line, and which serve a single building (e.g., remote packaged chiller, cooling tower, substation or heating plant) will be included, in total, in the calculated DEU of the building. 

  (2) The energy furnished by plants, in the form of steam, high or medium temperature hot water or chilled water, which serve more than one building will be included in the DEU calculation.  Credit will be taken for energy content of condensate or water returning to the central plant.  Energy losses and gains from the distribution system between the plant and the buildings, as well as the energy conversion losses of the plant itself (other than that taken into account in the fuel conversion factors table) will not be included in the DEU of the connected buildings. 

• If another distinct function, facility type, is being performed in an area that comprises 10 percent or more of the building's gross floor area, the EUB will be normalized by using the following formula:

EUB=EUB1 (Area 1/AreaT) | EUB2 (Area2 / AreaT |. |EUBN (AreaN/AreaT)  where: EUB is for the mixed use building, EUBN is for one of the distinct functional areas, AreaN is the gross floor area devoted to function N, and AreaT is the total gross floor area. 

• The gross floor area of a building will be the sum of all floor areas, measured from the outside of exterior walls or from the center line of partitions, including basements, cellars, mezzanines, other intermediate floor tiers, and penthouses. 

• The appropriate EUB values for specific types of Fort Carson facilities are found in Table II.  These values have been derived from, and are the same as EUB values found in U.S. Army Corps of Engineers AEI, Design Criteria, 3 July 1994, Chapter 11.  Fort Carson is in Weather Region 6, based on average heating and cooling degree days

Table II 

FORT CARSON DESIGN ENERGY USE BUDGET (EUB)
BY FACILITY TYPE (MBTU/KSF)

 Energy Calculation Methods 

• All energy calculations for any new building that is heated only or heated and/or air conditioned and exceeds 280 square meters (3000 square feet) of gross floor area will be calculated using a professionally recognized and proven computer program or programs that integrate architectural features with air-conditioning, heating, lighting, and other energy producing or consuming systems.  These programs will be capable of simulating the features, systems, and thermal loads used in the design.  Using established weather data files, the program will perform 8760 hourly calculations.  The Building Load Analysis and Systems Thermodynamics (BLAST), DOE 2.1E, and BESA (Canada) energy analysis programs are recognized by 10 CFR part 435, Subpart A (reference 3) as acceptable programs for these purposes.  BLAST is preferred by Fort Carson and the USACE.  Programs that "condense" the weather files and number of calculations into several "typical" or average days per month or follow modified bin calculation procedures may not be used for analysis of Fort Carson designs.  An adequate design analysis requires the input of detailed data about the building envelope, interior loads, weather, energy systems, etc., and perform hour-by -hour calculations of energy consumption over the entire average year. 

• Energy calculation for buildings not required to use computer programs may be calculated using a computer program as defined above or the Simplified Multiple-Measure Methods described in Chapter 28, "Energy Estimating Methods" of the ASHRAE Handbook of Fundamentals (reference 5). 

Life Cycle Cost Analysis (Lcca) 

• The National Energy Conservation Policy Act (Public Law 95-619 as amended in 1988 and 1992) requires the establishment and use of life cycle cost methods and procedures for the design of new Federal buildings, and application of energy conservation measures to existing Federal buildings.  According to the requirements of this law and other directives, designs for Fort Carson facilities will consider all reasonable approaches for providing the proposed facility with its required energy and then use life-cycling costing analyses to determine which systems should be used based on lowest life-cycle cost.  The energy to be considered will include all known thermal loads including process, ventilation and occupant loads.  Operating hours will be those actually anticipated for operation.  Special attention will be given to ensure that all feasible energy and water conservation alternatives, including renewable energy systems, are included in the analysis.  The results of the LCCA will be the determinant in system selection instead of initial acquisition costs. 

• Life Cycle Cost Analysis methods must average facility energy loads as a function of time-of-day for each week of the year.  The time-of-day detail is required when the cost of energy, such as electricity, varies over the 24-hour day and also contributes to special charges such as demand charges.  Using these average weekly time-of-day consumption estimates, current rate schedules, and approved rate escalation estimates, along with projected operation and maintenance labor, parts and supply costs, and major overhaul costs, projected life-cycle costs for competing energy are developed. 

• The computer program  "Life-cycle Cost in Design" (LCCID) will be used to perform the analysis. 

• All economic analyses will use the current energy price escalation rates furnished by Fort Carson upon request.  Energy analysis tools used with paragraph 7 above must be compatible with the life-cycle costing calculations performed using LCCID. 

• During periods of rapid change in fuel prices the average local fuel price for the previous 12 months period should be used in the analysis in lieu of the current contract price. 

• The designer will perform project specific individual economic analyses unless the use of previous economic analyses or generic studies are expressly approved by the Fort Carson Energy Program Manager and the DPW. 

• In all cases, the essential elements of the design selection process including, as a minimum, the basis for which the list of feasible alternatives was developed and the basis upon which the various design decisions were reached, will be documented in the design analysis, retained in the project file, and made available to Fort Carson upon request. 

Glazing Requirements 

• As a minimum, building glazing type, to include windows, doors, and skylights, will conform with the requirements outlined in TABLE  III.  These requirements reflect a starting point for design, but any reduction of requirement must be supported by life cycle analysis. 

• Bullet glazing must also conform to requirements indicated in UFC 4-010-01 Standard 10 Windows and Skylights.

• STORM SASH AND INSULATING GLASS.  Use of insulating or coated glass is encouraged if supported by life cycle analysis.  Glazing must be compatible with desired solar gain where passive solar features are used.  Due to maintenance and cleaning problems, storm sash is only desired if clearly shown to be cost effective.

TABLE III
FORT CARSON GLAZING REQUIREMENTS
7% AREA GLAZED

 
S = Single glazing with a minimum thickness of 3.18 mm (1/8 inch)

D = Double glazing with a minimum thickness of 6.35 mm (1/4 inch) air space

T = Triple glazing

Insulation 

• Building insulation requirements are shown in TABLE IV.  U factors are maximum and R factors are minimum.  Values are mandatory, but may be increased if shown to be life cycle cost  effective, or necessary to meet required EUB. 

• Opaque wall U factors must be calculated in accordance with the ASHRAE Handbook of Fundamentals.  The calculations must take into account all major thermal bridges and series and parallel heat conductive paths. 

• Gross wall U factor is the average U factor of all wall components (opaque walls, windows, doors, openings, etc.)  determined multiplying the respective U factor times the area of each wall component then dividing the sum of the products for all wall components by the total wall area. 

• Below grade wall R factors are the minimum values for exterior wall assemblies (in contact with the earth) of below grade conditioned spaces.  Air film coefficients and thermal performance of the adjacent ground are excluded from these values. 

• Exposed floor U factors are for floors of heated spaces over unheated areas such as open areas, garages, crawl spaces and basements without a positive heat supply to maintain a minimum temperature of 10 degrees C. (50 degrees F). 

• Refer to CEGS 03300 for mandatory slab on grade perimeter insulation requirements.

Table IV

FORT CARSON BUILDING ENVELOPE U & R FACTORS
Metric U Factors are in Watts/Sq. Meter-Kelvin
 (Inch-pound U Factors are in BTUH/SQFT-EF)

U = 1/R

Energy Control And Monitoring Devices

Utility Control Systems, (UCS) are installed or planned for all of the facilities at Fort Carson.  New buildings or major renovations will include UCS.  UCS will be designed to be compatible with and connected to existing or planned central control systems.  Information on this system is available from the Fort Carson Energy Program Manager or the DPW. 

Systems installed under this guide shall have the following characteristics:

• The control system shall be an open implementation of LonWorks technology using EIA 709.1B as the communications protocol and using LonMark Standard Network Variable Types as defined in LonMark SNVT Master List for communication over the network.

• LonWorks Network Services (LNS) shall be used for all network management including addressing and binding of network variables.  A copy of the LNS database shall be submitted to the project site as specified.

• The hardware shall perform the control sequences as specified and shown to provide control of the equipment as specified and shown.

• Control sequence logic shall reside in DDC hardware in the building. The building control network shall not be dependent upon connection to a Utility Control System (UCS) for performance of control sequences in this specification.  The hardware shall, to the greatest extent practical, perform the sequences without reliance on the network.

• The hardware shall be installed such that individual control equipment can be replaced by similar control equipment from other equipment manufacturers with no loss of system functionality.

• All necessary documentation, configuration information, configuration tools, programs, drivers, and other software shall be licensed to and otherwise remain with the Government such that the Government or their agents are able to perform repair, replacement, upgrades, and expansions of the system without subsequent or future dependence on the Contractor.

• The Contractor shall provide sufficient documentation and data, including rights to documentation and data, such that the Government or their agents can execute work to perform repair, replacement, and upgrades, and expansions of the system without subsequent or future dependence on the Contractor.

• Hardware shall be installed and configured such that the Government of their agents are able to perform repair, replacement, and upgrades of individual hardware without further interaction with the Contractor.

• Hardware shall be installed and configured to provide all input and output Standard Network Variables (SNVTs) as shown and as needed to meet the requirements of this specification.

• All DDC devices installed under this specification shall communicate via EIA 709.1B.The control system shall be installed such that a SNVT output from any node on the network can be bound to any other node in the domain.

• BPOC shall be a Tridium JACE controller with Niagara release 2.301.515a

• Building Point of Connection (BPOC):  The BPOC is the point of connection between the UMCS network backbone (an IP network) and the building control network backbone.  The hardware at this location, that general, the term “BPOC Location” means the place where this connection occurs, and the “BPOC Hardware” means the device that provides the connection.  Sometimes the term “BPOC” is used to mean either and it’s actual meaning (i.e. location of hardware) is determined by the context in which it is used.If contractor is to install complete system or they install the LonWorks system the jace can come later.

Energy Consuming Equipment  

All energy consuming equipment will be specified to insure that minimum efficiency ratings comply with the minimum efficiency requirements established by 10 CFR 435 (reference 3).  Additionally, designers will be responsible to investigate and specify equipment with higher efficiencies than required by 10 CFR 435, where feasible and life cycle cost effective.  

• Current Corps Guide Specifications and other criteria have been revised to indicate the minimum efficiencies as required by 10 CFR 435.  The designer will obtain the appropriate guide specifications for use in selection of energy consuming equipment.  

• Electric motors will conform to NEMA high-efficiency guidelines.  

Lighting  

Interior and exterior lighting will be in accordance with the EPA Green Lights Memorandum Of Understanding with Fort Carson (copy available from the Energy Manager).   Lighting fixtures, bulbs, tubes, and controls will be the most efficient available consistent with Life Cycle Costing.  

• Sensor-activated lighting controls will be used where appropriate and cost effective.  In all cases, sensor-activated lighting controls will be standard features in restrooms, shower rooms, and similar low occupancy spaces.  

Pollution Preventing Equipment And Materials  

In accordance with Executive Order 13101, designers will be responsible to investigate and specify equipment and materials that are friendly to the environment, and stimulate the production and use of renewable energy.  

Special Considerations

Special and non-traditional energy using and producing systems and techniques that were not cost effective or generally employed several years ago have now advanced in state-of-art and economy to the point that they may prove to be cost effective at Fort Carson.  Other passive features and techniques which have not been in vogue for many years now make sense as Fort Carson focuses on energy efficiency.  All of these systems, features, and techniques will be evaluated for possible inclusion in the design of new or renovated facilities.  

PASSIVE SOLAR DESIGNS.  The local climate at Fort Carson, Colorado, with its extensive heating season accompanied by substantial solar insulation, makes it an ideal location for employing passive solar designs.  Numerous studies and actual measurements of passive solar buildings have consistently shown reductions in energy consumption of thirty to fifty percent when compared to similar buildings of conventional design.  The three key features of a passive solar design are:  

(1) Proper building orientation to collect the maximum amount of solar energy during the winter months.  

(2) Substantial areas of South facing windows and clerestories to collect large amounts of solar energy during the winter months with overhanging roof eaves to shield these windows and clerestories during the summer months.

(3) Large amounts of massive materials on the inside of the building to store the large quantities of solar thermal energy let in through the windows accompanied by thick insulation on the outside of the massive materials to prevent the collected thermal energy from escaping.  

(4) Easily operated control devices (window shades, insulated window blinds, shutters, dual-pane windows, etc.,) to permit collecting of solar thermal energy when desired and prevent its loss back out of the building during the night.  

When these features are incorporated into the original design, they can be very cost effective.  Designers will consider passive solar systems, hybrid or combined passive / active solar systems, and other solar systems that can be reasonably evaluated and that are practicable as well as life cycle cost effective for every new facility and major renovation at Fort Carson.  

• ACTIVE SOLAR PREHEATING OF DOMESTIC HOT WATER.  Many facilities at Fort Carson require large quantities of domestic hot water and thus consume large quantities of thermal energy.  These facilities warrant serious evaluation of the possible use of active solar preheating of DHW.  The economic feasibility of incorporating an active solar domestic water preheating system will be evaluated using the Solar Feasibility (SOLFEAS) computer program.  In lieu a separate SOLFEAS analysis, previous SOLFEAS analyses for similar facilities, climatic regions and sized systems, updated to current economic conditions, may be used.  Since the price of solar panels have been reduced to less than one third (1/3) of earlier costs, care must be taken to ensure that current data is used.  If the SOLFEAS study indicates that the active solar preheating system is feasible, the system will be compared to the most life-cycle cost effective design without consideration of the active solar water preheating system.  Additional funding required for an active solar water pre-heating system will be listed as a separate line item on the concept cost estimate.  Based on this estimate, a life cycle cost analysis will be conducted.  If the life cycle cost analysis proves the solar system to be cost effective, it will be included in the design. 

• TRANSPIRATION HEATING (SOLAR WALL) FOR VEHICLE AND AVIATION MAINTENANCE BUILDINGS.  Transpiration heating using perforated metal panels to extract a flow of boundary layer heated air has shown to be highly cost effective at numerous industrial plants where a large flow of heated ventilation air is required to meet safety and health standards in buildings with high levels of fumes from volatile materials (fuels, greases, cleaning fluids, etc.)  New construction and major renovation of vehicle and aviation maintenance facilities at Fort Carson that require large amounts of heated ventilation air will be analyzed for the application of transpiration heating, and this feature included in the design if life cycle cost effective.

• EVAPORATIVE COOLING.  The relatively dry summer climate and short cooling season makes evaporative cooling a very workable and cost effective option for space cooling at Fort Carson.  Current technology provides high efficiency evaporative cooling systems, which, combined with natural ventilation, can effectively provide cooling for a wide range of facilities.  With proper maintenance, evaporative cooling offers no special health concerns.  Evaporative cooling will be considered for all new  major renovation facilities at Fort Carson, and if appropriate and cost effective, will be included in the design.    

  (1.)  Evaporative cooling will be considered for one story buildings only, have operable windows, and will have generally the same occupants for longer periods of time.  

  (2.)  Chilled water cooling shall be used in all applications where feasible.  

• REFRIGERATION SYSTEMS (AIR CONDITIONING)

  (1.) DEFINITION: Any mechanical device or system that cools the air.  

  (2.) AUTHORIZATION: Air-conditioning is authorized for the following activities on Fort Carson and the Pinon Canyon Maneuver Site (PCMS).  

(a.) Rooms containing equipment requiring a controlled atmosphere.

(b.) Hospital, Dental Clinics, wards, surgery, and special equipment.

(c). BOQ/BEQ and temporary lodging facilities.

(d.) Brigade and Higher level Headquarters.

(e.) Dining areas, recreational facilities, events center, and community clubs.

(f.) Buildings where connected to the Central Cooling Plant, when authorized.

(3.) GENERAL GUIDANCE:

 (a.) Individual air-conditioners/evaporative units are approved on an as needed basis through the DECAM and DPW, i.e., medical basis with medical documentation.

 (b.) Family Housing only on a medical basis with medical documentation.  

 (4.) SPECIFICATIONS:

(a.) Air conditioning for office space shall be evaporative cooling unless a life- cycle cost analysis demonstrates mechanical cooling (mc) to be preferred option.  

 (b.) MC equipment capacity shall be based on 100% of the calculated demand. No "rule of thumb" estimates for demand may be used.

(c.) MC equipment shall have at least two stages of unloading (100%and5O%), with outside air counted as a third stage, unloading shall be controlled by HVAC control system, not suction temperature.

(d.) MC equipment shall use a non-CFC or Halogenated Chloro Fluorocarbon (HcFc) refrigerant unless such is not economically available, in which case an HcFc refrigerant may be used.

(e.) Air Distribution: Blower motors over 5HP shall be equipped with variable frequency drives. Reset shall be duct static pressure, outside air temperature, or others as appropriate.

(5.) REFRIGERATION SYSTEMS USING R-22 REFRIGERANT.  The production of R-22 refrigerant is scheduled to be terminated in the year 2006 and phased out by the year 2010.  To avoid future replacement cost and environmental issues, equipment using R-22 refrigerant will not be used for any new Fort Carson facilities or equipment after CY 1995.  

PROCESS FOR ENERGY REVIEW OF NEW CONSTRUCTION AND MAJOR RENOVATION AND REPAIR PROJECTS  

(a.)  PRE-DD 1391 PREPARATION PHASE. To ensure that energy professionals are involved at the beginning of a project, DECAM Energy Program Management personnel will meet with DPW and user personnel prior to completion of the DD 1391.  The following project parameters will be discussed: 

• Building Envelope

• Approximate size

• Number of floors

• Type of construction

  • Probable type of construction materials- Use of building (admin, shop, storage, etc.) 

• Frequency of Use (daily, day or night operation, etc.) 

• Site Characteristics

• Orientation (compass)

• Shading (hills, trees, other buildings, etc.)

• Available utilities (elect, gas, water, sewer, centra  heating/cooling)

• Prevailing winds

• Solar insolation orientation 

• Anticipated use of standard design

• Energy efficiency requirements

• MBTU/KSF maximum building load (all energy)

• Lighting intensity levels

• Exterior lighting limits

• Heating/cooling level limits (thermostat settings) 

• Energy efficiency features for consideration

• Heating (solar, infrared, etc.)

• Cooling (natural ventilation, fans, evaporative, awnings, etc.)- Lighting (natural, high-efficiency)

• Domestic hot water (point heating, active solar, etc.) 

• Funding limits and constraints 

• Possible energy program funds to supplement costs 

• Range of flexibility in above parameters 

• Energy Resource Impact Statement (ERIS) requirements

• Initial Energy Resource Impact Assessment

• Possible ERIS (See AR 11-27 for instructions)

• Establish responsibility for ERIS preparation 

(b.) DD 1391 REVIEW PHASE. Prior to submission of the DD 1391, the DPW will furnish the completed form to DECAM Energy for review.  DECAM will submit comments to DPW within 2 weeks.  Any disagreement between DPW and DECAM will be discussed personally between counterparts.  Any unreconciled issues will be decided by the Garrison Commander.  DPW will ensure that energy requirements agreed upon between DPW and DECAM are included in the DD 1391 prior to submission. 

(c.) PRE-DESIGN CONFERENCE.  DECAM Energy professionals will attend the Pre-design Conference with the Corps of Engineers or contractor.  The same parameters as discussed with DPW during the Pre-DD 1391 Preparation Phase will be discussed at the Pre-design Conference.  DPW and DECAM will ensure that design officials understand and will comply with Fort Carson energy efficiency and performance requirements.  

(d.) 10% DESIGN REVIEW.  Energy saving features of a project become extremely important for inclusion at this phase of design. Critical features such as orientation, passive solar, natural air flow, natural lighting, and shading must be incorporated at this phase.  DECAM energy professionals will participate in 10% design review meetings to review compliance with energy requirements and offer substantive comment on A&E proposals. DPW will ensure that DECAM is provided ample notice and time to review design documents prior to the design review. 

(e.) 35% DESIGN REVIEW. DECAM Energy professionals will participate in this phase of design review.  The 35% review is critical since changes after this phase are costly and are usually resisted by the Corps of Engineers and design firms. Any energy performance deficiencies or variances from previous requirements noted at this review must be reconciled between DECAM, DPW, and the Corps of Engineers.  Should disagreement surface between Fort Carson (DPW and DECAM) and the Corps of Engineers or its A&E contractor, the Garrison Commander will be asked to get the command involved before the design progresses.  DPW will ensure that DECAM is provided ample notice and time to review design documents prior to the design review. 

(f.) 98% DESIGN REVIEW (FINAL).  DECAM Energy Management professionals will participate in the final phase of design review.  If at this phase of design energy requirements have not been satisfactorily addressed, DECAM will request that the design not be approved unless amended. In the case of disagreement between DECAM and DPW, the Garrison Commander will be asked to provide guidance, based on overall impact to the installation energy program.  DPW will ensure that DECAM is provided ample notice and time to review design documents prior to the design review. 

(g.) BUILDING COMMISSIONING.  DECAM Energy Management professionals will participate in the building acceptance and commissioning process to ensure that energy efficiency and energy budget goals have been met. 

(h.) SPECIAL REQUIREMENTS FOR ENERGY CONSERVATION INVESTMENT PROGRAM (ECIP) PROJECTS.  The ECIP is a special Military Construction (MILCON) funded program to improve the energy efficiency of existing facilities.  Generally, the ECIP is used to fund energy projects costing in excess of $300,000, have a payback period of less than 10 years, and offer a savings to investment ratio (SIR) greater than 1.25.  Projects are ranked by SIR, and require a detailed economic analysis. Although documentation for ECIP programs include the DD 1391, there are unique requirements and methods for analysis and documentation. Special care should be taken in preparation of documentation for projects that anticipate use of ECIP funding.  DPW will prepare ECIP documentation for appropriate energy projects identified by either the DPW or the DECAM, maintaining close coordination with DECAM. Design review of ECIP projects will follow the process outlined in this document. 

References 

(1.)  U.S. Army Corps of Engineers AEI, Design Criteria, 3 July 1994. 

(2.)  TM 5-802-1, Economic Studies for Military Construction Design - Applications, 31 Dec 1986. 

(3.)  Title 10 CFR, Subpart A,  Part 435, pages 4535 - 4720 inclusive, Energy Conservation Voluntary Performance Standards for New Commercial and Multifamily High Rise Residential Buildings, Mandatory for New Federal Buildings, published January 30, 1989.

(4.)  Public Law 100-615, Federal Energy Management Improvement Act of 1988, November 5, 1988. 

(5.)  ASHRAE Handbook of Fundamentals, American Society of Heating, Refrigerating and Air Conditioning Engineers. 

(6.)  Energy Prices and Discount Factors for Life-Cycle Cost Analysis, current letter edition. 

(7.)  Executive Order 12902, Energy Efficiency and Water Conservation at Federal Facilities, dated March 8, 1994. 

(8.)  TM 5-815-2 / AFM 88-36, Energy Monitoring and Control Systems (EMCS), 14 January 1991. 

(9.)  Joint Services Manual, TM 5-785, NAVFAC P-89, AFM 88-29, Engineering Weather Data, July 1978. 

(10.) CEGS 13814 (April 1989) thru Notice 2 (December 1991) and all subsequent revisions - Building Preparation for Energy Monitoring and Control Systems (EMCS). 

(11.) Energy Policy Act of 1992 (Public Law 102-486)

(12.) Executive Order 12856, Federal Compliance with Right-to-know Laws and Pollution Prevention Requirements dated August 3, 1993.

B.3 PROJECT DESIGN