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De Soto City is taking a crucial step towards better lighting standards and urban forestry, but experts warn that blue-rich LEDs could harm our health and the night sky.

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#DeSotoCityJohnsonCounty #KS #EnvironmentalSustainability #PublicHealth #LightingStandards #CitizenPortal
Commission opens initial review of dark‑sky and tree regulations; staff to refine recommendations
Commission discussed model dark‑sky and urban‑forestry text amendments (sourced from IDA/IESNA and USGBC model language), flagged photometric, Kelvin, and enforcement questions, and asked staff to consult experts and return with recommended language and public‑engagement steps.
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July 30, 2026 at 3:04 AM
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FInd Chaberton at IESNA Midwest in Rosemont, IL this week! We're excited to connect with other distributed energy leaders, innovators, and advocates to explore what’s next for solar and energy storage in the heart of the Midwest. ⚡🔋 #IESNA #EnergyStorage #CommunitySolar
June 15, 2026 at 12:43 PM
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Intersolar & Energy Storage North America (IESNA) Midwest, June 15 - 17, #Rosemont #Illinois buff.ly/7RC7dib #ISESA #solar #renewableenergy #energy #energyefficiency #energystorage #batteries #utilities #finance #cleanenergy #cleantech #climatech #greenbuilding #Midwest
Intersolar & Energy Storage North America (IESNA) Midwest, June 15 - 17, Rosemont, Illinois - Green Building Events - Rate It Green
Join the Illinois Solar Energy & Storage Association (ISEA) at IESNA Midwest—previously known as the Midwest Solar Expo—taking...
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June 5, 2026 at 2:32 PM
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Intersolar & Energy Storage North America (IESNA) Midwest, June 15 - 17, #Rosemont #Illinois buff.ly/7RC7dib #ISESA #solar #renewableenergy #energy #energyefficiency #energystorage #batteries #utilities #finance #cleanenergy #cleantech #climatech #greenbuilding #Midwest
Intersolar & Energy Storage North America (IESNA) Midwest, June 15 - 17, Rosemont, Illinois - Green Building Events - Rate It Green
Join the Illinois Solar Energy & Storage Association (ISEA) at IESNA Midwest—previously known as the Midwest Solar Expo—taking...
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May 25, 2026 at 2:37 PM
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Intersolar & Energy Storage North America (IESNA) Midwest, June 15 - 17, #Rosemont #Illinois buff.ly/7RC7dib #ISESA #solar #renewableenergy #energy #energyefficiency #energystorage #batteries #utilities #finance #cleanenergy #cleantech #climatech #greenbuilding #Midwest
Intersolar & Energy Storage North America (IESNA) Midwest, June 15 - 17, Rosemont, Illinois - Green Building Events - Rate It Green
Join the Illinois Solar Energy & Storage Association (ISEA) at IESNA Midwest—previously known as the Midwest Solar Expo—taking...
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May 14, 2026 at 3:08 PM
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EFTA01089772 | EFTA01089823 the power panel and shat keep the circuit breakers off. The Lessor shall identify each circuit with the breaker number and shall identify the computer hardware to be connected to il. The Lessor shall identify each breaker al the panel and identify the devices that it serves. 4. 8.17 8.18 The Lessor's electrical contractor must connect power poles or base feeds in the junction boxes to the furniture electrical system and test all pre-wired receptacles in the systems furniture. Other Lessor contractors will be installing the cabling in the furniture panels for the terminal and printer locations. Installing the connectors on the terrninagannter ends of the cable, and continuity testing each cable. Work shall be coordinated and performed in conjunction with the furniture, and equipment Installers Contracted by the Government. Much of this work may occur over a weekend on a schedule that requires flexibility and on-call visits. The Lessor must coordinate the application of Certification of Occupancy with furniture installation. ELEVATORS (AUG 2008) A. The Lessor shall provide suitable passenger and. when required by the Government. freight elevator service to any Government-demised area not having ground level access. Service shall be evadable during the hours specified in the 'Normal Hours' paragraph in the SERVICES. UTILITIES AND LEASE ADMINISTRATION section of this SFO. However, one passenger and. when required by the Government. one freight elevator shall be available at all times for Government use. When a freight elevator is required by the Government, shall be accessible to the loading areas. VVhen possible, the Government shall be given 24-hour advance notice if the service is to be interrupted for more than 1-1/2 hours. Normal service interruption shall be scheduled outside of the Government's normal working hours. The Lessor shall also use best efforts to minimize the frequency and duration of unscheduled interruptions. B. CODE" Elevators shall conform to the current requirements of the American Society of Mechanical Engineers ASME A17.1, Safety Code for Elevators and Escalators (current as of the award date of this SFO). Where provided, elevator lobby and elevator machine room smoke detectors shall activate the building fire alarm system, provide Phase 1 automatic recall of the elevator(s), and automatically notify the local fire department or approved central station. The elevator shall be inspected and maintained In accordance with the current edition of the ASME A17.2, Inspectors' Manual for Elevators. Except for the reference to ASME A17.1 in ABAAS Section F105.2.2, all elevators must meet ABAAS requirements for accessibility In Sections 407, 408, and 409 of ABAAS. C. SAFFTY SYSTEMS: Elevators shall be equipped with telephones or other two-way emergency communication systems. The system used shall be marked and shall reach an emergency communication location staffed 24 hours per day, 7 days per week. D. SPEED: The passenger elevators shall have a capacity to transport In 5 minutes 15 percent of the normal population of all upper floors (based on 150 square feet per person). Further, the dispatch interval between elevators during the up-peak demand period shah not exceed 35 seconds. E. INTERIOR FINISHES: Elevator cab walls shall be hardwood, marble, granite. or an equivalent pre-approved by the Contracting Officer. Elevator cab floors shall be marble, granite, terrazzo, or an equivalent pre-approved by the Contracting Officer. LIGHTING: INTERIOR AND PARKING (SEP 2009) A. BUILDING SHELL: 1. In accordance with subparagraph (10) of the, 'Building Shell Requirements' paragraph in the Summary section of this SFO, the Lessor shall provide interior lighting, as part of the building shell cost, as follows: B. a. inferior Lighting. See USCIS Special Requirements. b. Exterior parking areas, vehicle driveways, pedestrian walkways, and building perimeter shall have 5 fool.candles for doorway areas, 3 foot-candles for transition areas (including stairwells), and at least 1 foot-candle overlapping throughout the lot, except where local codes conflict. Illumination shall be designed based on Illuminating Engineenng Society of North America (IESNA) standards. Indoor parking shall have a minmum of 10 foot-candies and shall be designed based on IESNA standards. The intent Is to provide adequate Ighting at entrances/exits. garages, parking lots or other adjacent areas to the building to discourage comes against persons. c. Extenor building lighting must have emergency power backup to provide for safe evacuation of the building in case of natural disaster, power outage, or cnrnInalfferrorst activity. O. The Lessor shall provide occupancy sensors and/or scheduling controls through the building automation system to reduce the hours that the lights are on when the space is unoccupied. The Lessor shall provide daylight dimming controls In atriums or within 15 feet of vendcsys where daylight can contnbute to energy savings. TENANT IMPROVEMENTS: 1. Once the design intent drawings are approved, the Lessor shall design and provide intenor lighting yielding a uniform 50 foot-candles at working surface heght (30' above the floor). The increase between the number of fixtures required in the building shell and the space layout is part of the Tenant Improvement Allowance. The light fixtures shall meet the requirements as stated in the above Building Shell subparagraph A. SFO NO. 9VI2017 12/29/2010 47 INITIAL;ei zL SSOR EA"- EFTA01089823
May 9, 2026 at 3:00 AM
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EFTA00281516 | EFTA00281909 I EQ Credit 6.1 CI Shared Multioccupant Spaces In conference rooms, classrooms, and other indoor spaces used for functions such as presentations and training, the group should have access to adequate controls to suit its activities. Specific types or numbers of controls are not listed in the credit requirements to allow for flexibility in designing to the unique uses of each project. Meeting spaces must be designed so that occupants have control of their individual area; subdivide these spaces with movable walls or partitions. When daylighting is used as a component of an ambient lighting scheme in either type of space, provide glare control, lighting level controls, and room-darkeningshades if appropriate. Offices and Other Regularly Occupied Spaces Count the workstation locations intended for individual use. The office and equipment layout should be carefully analyzed to ensure that 90%or more of occupants of these spaces have individual lighting controls that enable adjustment to suit individual needs. Adjustability, at a minimum, must enable the occupant to turn the fixture on and off. Individual Workstation Lighting Controls Individual Listing Controls Provided Workstations with Controls (%) = Total Individual Workstations (include private offices and cubicles) 7. Documentation Guidance As a first step in preparing to complete the LEED-Online documentation requirements, work through the following measures. Refer to LEED-Online for the complete descriptions of all required documentation. ■ Maintain a floor plan that indicates the location, zoning, and type of lighting controls. The floor plan should also include furniture layout and indicateindividual and shared work areas. • Retain design information on task lighting, sensors, and lighting controls. 8. Examples Figure 1. Workstations with Individually Adjustable Task Lighting ADJUSTABLE TASK LIGHTING FOR INDEPENDENT OCCUPANT CONTROL VI • 370 AMBIENT LIGHTING DESIGNED FOR MINIMUM AVERAGE IESNA RECOMMENDED LIGHT LEVELS LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 2009 EDITION EFTA00281909 Epstein Web iOS app on the App Store.
April 26, 2026 at 4:17 AM
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EFTA00281516 | EFTA00281711 EA CI Credit 13 STEP 6A. Model an Alternative Baseline Case In the above method, the differential between the DEC and energy cost budget increases as the energy efficiency of the building decreases. This could make it easier to reach the credit thresholds in a less efficient building. So as not to penalize project teams that have wisely located in a highly energy-efficient building—perhaps a building already LEED certified—an alternative baseline method is provided. If the existing conditions are more energy efficient than the prescriptive requirements of ASHRAE 90.1-2007, replace the existing conditions in the baseline model with the ASH RAE 90.1-2007 requirements. Basethe credit calculations oneither baseline. Document the choice in the narrative included with the submittal; if results for both baselines were generated, consider submitting both. STEP 7. Calculate the Energy Reduction Because of the 2 possible baseline cases, there are 2 energy reduction calculations. The reduction for the model baseline case uses ASHRAE 90.1-2007 mandatory and prescriptive requirements in the project area and edstingconditions in the balance of the modeled building segment, as shown in Equation 1. It corrects for the area relationship between the project space and the modeled buildingsegment. The reduction for the alternative baseline, potentially more generous if the building is highly efficient, is shown in Equation 2. No adjustment is made for the project-to-buildingsegment area because the calculation evaluates the overall performance of the HVAC system. Equation 1. Percent Annual HVAC Energy Cost Reduction Baseline: Project Area - ANSI/ AHRAE/IESNA 90.t mandatory and prescriptive requirements Balance of modeled Building Segment - Existing Conditions ECBmt — DECK& Reduction = EC8 NyAC X Project Area Total Segment Area Equation 2. Percent Annual HVAC Energy Cost Reduction Alternate Baseline: Both Project Area and Balance of Modeled Building Segment - ANSI/ AHRAE/IESNA 90.1 mandatory and prescriptive requirements A-ECB„wc — DEC„µ.,c Reduction — A-ECB,„„c 7. Documentation Guidance As a first step in preparing to complete the LEED-Online documentation requirements, work through the following measures. Refer to LEED-Online for the complete descriptions of all required documentation. ■ List locations and functions of HVAC system automatic controls or sensors. ■ Document potential energy savings per control and reasons for zone distribution. ■ For cost-budget compliance, list the proposed design energy by end use, associated peak demand, and cost. Additionally, list baseline costs by energy type. 172 LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 2009 EDITION EFTA00281711
April 26, 2026 at 4:07 AM
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EFTA00281516 | EFTA00281706 American National Standards Institute/ASHRAEfilluminating Engineering Society of North America Standard 90.1-2007: Energy Standard for Buildings Except Low-Rise Residential American National Standards Institute American Society of Heating, Refrigerating and Air-Conditioning Engineers Illuminating Engineering Society of North America http:J/www.ashrae.org ANSIJASHRAWIESNA Standard 90.1-2007 was formulated by ASHRAE under an ANSI consensus process. IESNA is a joint sponsor of the standard. EA CI Credit 1.3 ANSIJASHRAE/IESNA Standard 90.1-2007 establishes minimum requirements for the energyefficient design of buildings, with these exceptions: single-family houses; multifamily structures of 3 habitable stories or fewer above grade; manufactured houses (mobile and modular homes);buildings that do not use either electricity or fossil fuel; and equipment and portions of buildings systems that use energy primarily for industrial, manufacturing, or commercial processes. Building envelope requirements are provided for semiheated spaces such as warehouses. The energy cost budget method (Section 11) allows the project team to exceed some of the prescriptive requirements provided energy cost savings are made in other areas. However, in all cases, the mandatory provisions must still be met. 4. Implementation OPTION 1. Equipment Efficiency and Zoning Controls The equipment efficiency approach draws from Sections 1.4, 2.9, and 3.10 of the Advanced Buildings Core Performance Guide. Section 1.4 covers mechanical system design intended to closely match actual building loads and to meet ASH RAE 55; Section z.8 covers lighting power density (LPD) by interior space types with specifications not exceeding the Advanced Buildings minimum LPD table; Section 3.10 covers the installation of ENERGY STAR-labeled cool roofs. Follow the requirements laid out in the Core Performance Guide to reduce operating costs, urban heat island effect, and energy use and to maximize occupants' comfort. Small private spaces intended for single, temporary occupancy (e.g., for making confidential telephone calls) may be included as part of a larger thermal zone, since changes in occupancy will not cause large swings in the heating and cooling loads. OPTION 2. Comparison with ASHRAE 90.1-2007 In this option, compare the design annual energy cost with the annual energy cost based on meeting the minimum ASHRAE 90.1-2007 requirements. Only energy costs for space heating, space cooling,and associated fans and pumpsare considered;however, the performance ofthese systems is influenced by the performance of other buildingsystems. To determine the reduction in annual costs for the project area, consider the entire building area that is served by the HVAC plant for the project in the evaluation, since the building design and operations beyond the project space influence the design and operation of the HVAC plant. Energy-Efficient Buildings Landscaping protects a building from wind and provides shade, which helps reduce the heat island effect. Characteristically, buildings oriented along an east-west axis obtain the most effective exterior shading. Confirm that the selected building is weather tight and meets code-minimum insulation levels. Lighting accounts for a major portion of a commercial building's energy budget. Efficient lighting in common areas, inside and out, reduces costs. Confirm that the owner has established lighting density standards for all tenant spaces. 2009 EDITION LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 187 EFTA00281706
April 26, 2026 at 4:07 AM
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EFTA00281516 | EFTA00281698 IESNA Lighting Handbook, ninth edition (IESNA, 2000). ANSIJIESNA RP.1.04, American National Standard Practice for Office Lighting (IESNA). EA CI Credit 1.1 13. Definitions Interior lighting power allowance is the maximum lighting power (in watts) allowed for the interior of a building. Lighting power density is the installed lighting power, per unit area. A luminaire is a complete lighting unit consisting of a lamp (or lamps) with the housing designed to distribute the light, position, and protect the lamp and connect it to the power supply. Regularly occupied spaces in commercial buildings are areas where people sit or stand as theywork 2009 EDITION LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 199 EFTA00281698 Epstein Web iOS app on the App Store.
April 26, 2026 at 4:07 AM
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EFTA00281516 | EFTA00281694 3. Summary of Referenced Standards ANSIJASHRAE/IESNA Standard 90.1-2,007: Energy Standard for Buildings Except Low-Rise Residential American National Standards Institute American Society of Heating, Refrigerating and Air-Conditioning Engineers Illuminating Engineering Society of North America http:fiwwwashrae.org ANSIJASHRAWIESNA 90.1-2007 was formulated by ASHRAE under an ANSI consensus process. I ESNA is a joint sponsor of the standard. CI Credit 1.1 ANSIJASHRAE/IESNA 90.1-2.007 establishes minimum requirements for the energy-efficient design of buildings with these exceptions: single-family houses; multifamily structures of 3habitable stories or fewer above grade; manufactured houses (mobile and modular homes); buildings that do not use either electricity or fossil fuel; and equipment and portions of buildings systems that use energy primarily for industrial, manufacturing, or commercial processes. Building envelope requirements are provided for semiheated spaces such as warehouses. 4. Implementation The connected lighting power should be designed to maximize energy performance. Consider using an energy simulation model to assess the performance of the tenant space or building. General Guidance • Although task lighting may be used to supplement general lighting, take care to balance the various illuminance requirements of the space. • Lighting controls are not limited to on-off modes; continuous dimming can be implemented based on actual daylight levels. • Use high-efficacy sources and high internal reflectances to reduce the lighting power density. This credit compares the installed interior lighting power with the interior lighting power allowance. Use either the building area method or the space-by-space method in ASHRAE 90.1-2,007. See the Calculations section for details. 5. Timeline and Team Lighting requirements should be part of the owner's project requirements and may include the lighting technologies (LED, ceramic metal halide, Ts-HO, etc.) to be considered for the intended uses of the space. The lighting designer should include in the basis of design specific footcandle target levels for each major space type. Once the lighting system has been designed, it can be helpful to complete a photometric floor plan to identify areas that will be over- or underlit and refine the lighting design. 6. Calculations Installed Interior Lighting Power The installed interior lighting power, calculated as shown by Equation 1, is the power in watts of all permanently installed general,task,and furniture lighting systems and luminaires. ASHRAE90.12.007,Section 9.253, lists lighting equipment that is exempted from consideration in determining the lighting power density and therefore does not need to be included in the calculation. Note that luminaire wattages must be determined in accordance with ASH RAE 90.1-2007, Section 9.1.4. 2009 EDITION LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 155 EFTA00281694
April 26, 2026 at 4:06 AM
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EFTA00281516 | EFTA00281692 OPTIMIZE ENERGY PERFORMANCE-LIGHTING POWER EA CREDIT 1.1 a Credit EA Credit 1.1 Points 1.5 points Intent To achieve increasing levels of energy conservation beyond the referenced standard to reduce environmental and economic impacts associated with excessive energy use. Requirements Reduce connected lighting power density below that allowed by ANSI/ASHRAE/IESNA Standard90.1-2007 (with errata but without addenda') usingeither the space-by-space method or by applying the whole building lighting power allowance to the entire tenant space. The points earned for reducing lighting power density below the standard are as follows: Lighting Power Density Reduction below the Standard Points 15% 1 20% 2 25% 3 30% d 35% 5 Project teams in California may use Title 24 zoos, Part 6 in place of ANSI/ASHRAE/IESNA Standard 90.1-2007. Potential Technologies & Strategies Design the connected lighting power to maximize energy performance. If the project warrants, consider a computer simulation model to assess the performance and identify the most costeffective energy efficiency measures. z Projck: wi.liittK :0 um: ASI IRAE upproved addenda the put posts of this p:e:cq eisitc nave do so ti :Lair d:ma,:ion.Addcntla mt,t Ix• znplicd consi.tyntty ai.ros, 411 1.1.: ill... etch 2009 EDITION LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 153 EFTA00281692
April 26, 2026 at 4:06 AM
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EFTA00281516 | EFTA00281683 EA CI Prerequisite 2 12. Resources Please see USGBC's LEED Registered Project (bm3Wwww.usgbc.orgiprojecttools) for additional resources and technical information. Websites Advanced Buildings Technologies and Practices httN/www.advancedbuildings.org This online resource, supported by Natural Resources Canada, presents energy-efficient technologies, strategies for commercial buildings, and pertinent case studies. American Council for an Energy-Efficient Economy http://www.aceee.org ACEEE is a nonprofit organization dedicated to advancing energy efficiency through technical and policy assessments; advising policymakers and program managers; collaborating with businesses, public interest groups, and other organizations; and providing education and outreach through conferences, workshops, and publications. ENERGY STAR.; Buildings Upgrade Manual http://www.energystangovfindex.cfrn? business.bus upgrade manual This manual is a strategic guide for planning and implementing energy-saving building upgrades. It provides general methods for reviewing and adjusting system control settings, plus procedures for testing and correcting calibration and operation of system components such as sensors, actuators, and control devices. New Buildings Institute, Inc. http:(Jwww.newbuildings.org The New Buildings Institute is a nonprofit, public-benefits corporation dedicated to making buildings better for people and the environment. Its mission is to promote energy efficiency in buildings through technology research, guidelines, and codes. U.S. Department of Energy, Building Energy Codes Program httpWwww.energycodes.gov The Building Energy Codes program provides comprehensive resources for states and code users, including news, compliance software, code comparisons, and the Status of State Energy Codes database. The database includes state energy contacts, code status, code history, DOE grants awarded, and construction data. The program is also updating the COMcheck-EZ compliance tool to include ANSIJASHRAE/IESNA 90.1-2007. This compliance tool includes the prescriptive path and trade-off compliance methods. The software generates appropriate compliance forms as well. U.S. Department of Energy, Office of Energy Efficiency arid Renewable Energy http://wwweere.energy.gov This website is a comprehensive resource for U.S. Department of Energy information on energy efficiency and renewable energy and provides access to energy links and downloadable documents. Print Media ANSIJASHRAEIIESNA Standard 90.1-2007 User's Manual (ASHRAE, 2008). The ANSI/ASHRAE/IESNA 90.1-2007 User's Manual was developed as a companion document to the ANSIJASHRAE/IESNA 90.1-2007, Energy Standard for Buildings Except Low-Rise Residential Buildings. The manual explains the new standard and includes sample calculations, useful reference material, and information on the intent and application of the standard. It is abundantly illustrated and contains numerous examples and tables of reference data. It also includes a complete set of compliance forms and worksheets that can be used to document compliance with the standard. The manual is helpful to architects and engineers applying the standard to the design of buildings, plan 144 LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 2009 EDITION EFTA00281683 Epstein Web iOS app on the App Store.
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EFTA00281516 | EFTA00281678 prescriptive requirements, provided energy cost savings are made in other areas. However, in all cases, the mandatory provisions must still be met. EA CI Prerequisite 2 Table 1. Energy Standard Requirements Addressed by ANSI/ASHRAE/IESNA Standard 90.1-2007 ANSI/ASHRAVIESNA 90.1-2007 Components Section 5. Building envelope (including serniheated spaces, such as warehouses) Section 6. Heating, ventilation, and air-conditioning (including parking garage ventilation, freeze protection, exhaust air recovery, and condenser heat recovery for service water heating) Section 7. Service water heating (including swimming pools) Section 8. Power (including all building power distribution systems) Section 9. Lighting (including exit signs, building exterior, grounds, and parking garages) Section 10. Other equipment (including all permanently wired electrical motors) 4. Implementation Design the tenant space so that it complies with ASHRAE 90.1-2007 or the local code, whichever is more stringent.Research the status ofindividual state energycodes comparedwithenergystandards on the U.S. Department ofEnergy's BuildingEnergy Codes website (see Resources). If provisions of the base building are managed entirely by the landlord (and therefore cannot be changed by the building tenant) and do not meet the requirements ofASHRAE 90.1-2007, then only areas that are not part of the tenant scope of work and exclusively controlled by the landlord are exempt from the requirements of the standard. More Stringent Local Code ASHRAE 90.1-2007 is the baseline that registered projects must meet to satisfy the prerequisite requirement. Any local code (or provision in it) that is more stringent becomes part of the prerequisite requirement.In these cases, explain and document verification that the local code (or provision) is more stringent. California Title 24 is accepted as beingmore stringent with no further evaluation needed. Less Stringent Local Code InLEED for Commercial Interiors, the credit standards only to apply to the tenant's scope of work; this allows teams with projects in an existingcore and shell buildingto certify their project without havingto compel thebuildingowner to make changes to existingsystems.However,the intent ofthis prerequisite is to establish the minimum level of energy efficiency for the space systems; projects should still meet these standards. If the local code is less stringent, follow ASHRAE 90.1-2007. Do not outline a tenant scope of work to avoid applying the standard. Whenever possible, work being done for the benefit of the tenant should meet the more stringent provisions ofASHRAE 90.1-2007. Applying ASHRAE 90.1-2007 Section 2.1(a) of the standard specifies minimum energy efficiency requirements for the following 3 construction types: ■ New buildings and their systems. ■ New portions ofbuildings and their systems. ■ New systems and equipment in existingbuildings. The third approachapplies to most commercialinterior projects and is addressedbelow.As stated in Section 4.2.1.3, existingbuilding alterations must comply with the provisions ofSections, 6, 7, 8,9, and t0,aslongascompliancedoesnot increasethebuilding'senergyconsumption.Sections5through 2009 EDITION LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 139 EFTA00281678 Epstein Web iOS app on the App Store.
April 26, 2026 at 4:06 AM
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EFTA00281516 | EFTA00281676 MINIMUM ENERGY PERFORMANCE Prerequisite Points EA PREREQUISITE 2 a EA Prerequisite 2 Required Intent To establish the minimum level of energy efficiency for the tenant space systems to reduce environmental and economic impacts associated with excessive energy use. Requirements Design portions of the building as covered by the tenant's scope of work to comply with ANSI/ ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda'), and complete the following: ■ Comply with the mandatory provisions (Sections 54 6.4, 74 84 94 and 10.4) of ANSI/ ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda'). ■ Achieve the prescriptive requirements (Sections 5.5, 6.5, 7.5 and 9.5) or performance requirements (Section It) of ANSI/ASHRAWIESNA Standard 90.1-2007 (with errata but without addenda'). ■ Reduce connected lighting power density so% below that allowed by ANSI/ASHRAE/ IESNA Standard 90.1-2007 (with errata but without addenda') using either the Space-bySpace Method or by applying the whole building lighting power allowance to the entire tenant space. • Install ENERGY STARtqualified equipment for 50%(by rated-power) of ENERGY STAR eligible equipment.' installed as part of the tenant's scope of work. This requirement includes appliances, office equipment, electronics, and commercial food service equipment. Excluded are heating, ventilating and air conditioning (HVAC), lighting, and building envelope products. Projects in California may use Title 24-2005, Part 6 in place ofANSI/ASHRAPIESNA Standard 90.1-2007. Project teams wishing to use ASIIRAE approved addenda for the purFoses ofthis crcdit maydo so at theirdiscretioc. Addenda must be applied amsLstently aalIIS all LEEDmats 2009 EDITION LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 137 EFTA00281676
April 26, 2026 at 4:05 AM
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EFTA00281516 | EFTA00281573 SS Credit 1 OPTION 2: PATH 6 CI 12. Resources Please see USGBC's LEED Registered Project Tools (httpWwww.usgbc.orgiptojecttools) for additional resources and technical information. Websites Illuminating Engineering Society of North America httpg/www.iesna.org The mission of IESNA is to benefit society by promoting knowledge and disseminating information for the improvement of the lighted environment. International Dark-Sky Association http://www.darksIcy.ozgiida/ida_z/indoc_html This nonprofit agency is dedicated to educating about and providing solutions to light pollution. Rensselaer Polytechnic Institute, Lighting Research Center http://www.Ircspi.edu This leading university-based research center is devoted to providing objective information about lighting technologies, applications, and products. Sky and Telescope This site Includes facts on light pollution and its effect on astronomy and information about purchasing light pollution-minimizing light fixtures. Print Media TheIESNALightingHandbook, ninth edition,edited by Mark S. Rea (Illuminating Engineering Society of North America, woo). Lighting for Exterior Environments RP-33-99, by The IESNA Outdoor Environment Lighting Committee (Illuminating Engineering Society of North America,t999). Concepts in Practice Lighting: Lighting Design in Architecture, by Torquil Barker (B.T. Batsford Ltd., 1997). The Design ofLighting, by Peter Tregenza and David Loe (E Sc AN Spona998). 13. Definitions Light pollution is waste light from building sites that produces glare, is directed upward to the sky, or is directed off the site. Waste light does not increase nighttime safety, utility, or security and needlessly consumes energy. Light trespass is obtrusive light that is unwanted because of quantitative, directional, or spectral attributes. Light trespass can cause annoyance, discomfort, distraction, or loss of visibility. Sky glow is caused by stray light from unshielded light sources and light reflecting off surfaces that then enter the atmosphere and illuminate and reflect off dust, debris, and water vapor. Sky glow can substantially limit observation of the night sky, compromise astronomical research, and adversely affect nocturnal environments. 34 LEED REFERENCE GUIDE FOR GREEN INTERIOR DESIGN AND CONSTRUCTION 2009 EDITION EFTA00281573 Epstein Web iOS app on the App Store.
April 26, 2026 at 4:00 AM
advancedenergyunited.org
Clean energy wins don't happen in silos. At the IESNA conference last month, United's President & CEO @honeill.bsky.social joined leaders from SEIA, ACP, & the LDES Council to talk about what it takes to move policy in this moment.

Learn more about what our membership has to offer: buff.ly/dXYlpVm
March 20, 2026 at 4:24 PM
charlierichmond.bsky.social
Keynote Recap: State Level Blueprints for a Clean and Resilient Energy Economy | Intersolar & Energy Storage North America www.iesna.com/news-insight...
Keynote Recap: State Level Blueprints for a Clean and Resilient Energy Economy | Intersolar & Energy Storage North America
Energy leaders from NY, MA, and TX share strategies during Intersolar & Energy Storage North America (IESNA)'s Flagship 2026 keynote address.
www.iesna.com
March 4, 2026 at 3:59 PM
torsolarfred.bsky.social
Tigo Energy debuts real-time solar equipment commissioning software at IESNA 2026 #energysky -- via pv magazine usa: pv-magazine-usa.com/...
February 26, 2026 at 2:41 AM
longtail-news.bsky.social
Feed: "pv magazine USA"
By: Ben Zientara on Wednesday, February 25, 2026
Tigo Energy debuts real-time solar equipment commissioning software at IESNA 2026
The solar equipment and software provider said its new platform will help installers complete jobs faster and reduce the need for repeat truck rolls.
pv-magazine-usa.com
February 26, 2026 at 1:37 AM
torsolarfred.bsky.social
More policy questions, new products appear at Intersolar 2026 #energysky -- via Solar Power World:
More policy questions, new products appear at Intersolar 2026
Intersolar and Energy Storage North America (IESNA) wraps up its show for 2026 today after a week of uncharacteristically rainy days in San Diego and a
www.solarpowerworldonline.com
February 20, 2026 at 10:10 PM
wyoshan.bsky.social
Fun to listen to the one and only @sammyroth.bsky.social at #IESNA - #cleanenergy has a problem communicating with everyday Americans so folks should pay attention to what he has to say. #climatechange #energysky #solarpower #energyaffordability
February 18, 2026 at 7:14 PM
longtail-news.bsky.social
Feed: "pv magazine USA"
By: Ben Zientara on Wednesday, February 11, 2026
IESNA Flagship 2026 Preview: Solar & storage industries gear up for annual San Diego gathering
With the Intersolar and Energy Storage North America Flagship conference in San Diego just a week away, pv magazine USA previews the main attractions
pv-magazine-usa.com
February 12, 2026 at 8:10 PM
torsolarfred.bsky.social
IESNA Flagship 2026 Preview: Solar & storage industries gear up for annual San Diego gathering #energysky -- via pv magazine usa: pv-magazine-usa.com/...
February 12, 2026 at 3:53 AM
charlierichmond.bsky.social
Explore the Exhibit Hall: Meet the Companies at IESNA Flagship 2026 | Intersolar & Energy Storage North America www.iesna.com/news-insight...
Explore the Exhibit Hall: Meet the Companies at IESNA Flagship 2026 | Intersolar & Energy Storage North America
Discover the leading solar, energy storage, and smart energy innovators exhibiting at Intersolar & Energy Storage North America Flagship 2026.
www.iesna.com
February 4, 2026 at 4:10 PM