storage rooms
Discover the energy-saving potential of storage rooms with Rayzeek’s occupancy sensor design guide.
Maximize Energy Efficiency in Storage Rooms with Occupancy Sensors
Storage rooms, often overlooked, are integral parts of commercial buildings. These spaces are typically filled with shelves, boxes, and various items, and are used for storing supplies, equipment, or archived documents. Lighting in these areas is crucial for visibility and safety, but it can also be a significant source of energy waste. Traditional lighting systems in storage rooms are often left on unnecessarily, leading to high energy consumption and costs.
Moreover, storage rooms are usually equipped with fluorescent or LED lights, which, while energy-efficient, can still consume a considerable amount of power when left on for extended periods. The sporadic and unpredictable nature of storage room usage further exacerbates this issue, as lights are often left on even when the room is unoccupied, leading to unnecessary energy waste.
This energy wastage can be mitigated by using occupancy sensors. These devices automatically control lighting based on the presence or absence of people, ensuring lights are only on when needed. By installing occupancy sensors in storage rooms, businesses can significantly reduce their energy consumption, lower their utility bills, and contribute to a more sustainable environment.
エネルギー基準（省エネコード）への適合
国際省エネルギー基準（IECC）は、建築物におけるエネルギー効率の最小設計・施工要件を確立するために、国際基準評価機構（ICC）によって策定されたモデル基準です。IECCは、最新の省エネルギー手法や技術を取り入れるため、3年ごとに改定されています。
IECCに準拠すべき理由
IECCは全米の州や自治体で広く採用されています。IECCは、建築外皮（壁、屋根、窓）、冷暖房システム、照明システムなど、エネルギー利用の多様な側面をカバーしています。
IECCでは、さまざまなエリアの不在空間におけるエネルギーの無駄を最小限に抑えるため、人感センサーなどの特定の照明制御の設置が義務付けられています。
ANSI/ASHRAE/IES Standard 90.1（低層住宅を除く敷地および建築物のためのエネルギー基準）は、米国暖房冷凍空調学会（ASHRAE）が発行している、広く認知されたエネルギー基準です。
ASHRAE 90.1に準拠すべき理由
ASHRAE 90.1は、全米における建築物エネルギー基準のベンチマークとして使用されており、IECC内の適合パスとしても機能しています。この基準は、建築外皮、HVACシステム、給湯システム、照明システムを含む、商業ビル構成要素の省エネルギー性能に関する最小要件を提示しています。
ASHRAE 90.1基準では、許容される最大照明電力密度の規定に加え、特定エリアにおける人感センサーの使用を含む、最小限の照明制御要件を規定しています。
カリフォルニア州建築基準法第24条第6部（正式名称：住宅および非住宅建築物のための建築エネルギー効率基準）は、カリフォルニア州エネルギー委員会（CEC）によって管理され、新しい省エネ技術や手法を反映するために定期的に改定されています。
Title 24に準拠すべき理由
Title 24はその厳格な要件で知られており、全米の他の多くのエネルギー基準よりも厳しいと評価されることがよくあります。Title 24は、暖房、換気、空調（HVAC）、給湯、照明など、建築物施工のあらゆる側面に対して厳しいエネルギー性能基準を義務付けています。
Title 24では、エネルギーの無駄を確実に防ぐため、商業ビルの特定エリアにおいて室内の占有状況に応じて照明を調整する人感センサーの設置が義務付けられています。
州別のエネルギー基準（省エネコード）採用状況
Expand to see the detailed table ↓
| State | Current Commercial Code | Commercial Code Efficiency Category |
|---|---|---|
| Alabama | 90.1-2013 | 90.1-2013 |
| Alaska | None statewide | No statewide code |
| Arizona | Home rule | <90.1-2007 |
| Arkansas | 2009 IECC and 90.1-2007 | 90.1-2007 |
| California | 2022 Building Energy Efficiency Standards | 90.1-2019 |
| Colorado | Home rule | No statewide code |
| Connecticut | 2021 IECC and 90.1-2019 | 90.1-2019 |
| Delaware | 2018 IECC and 90.1-2016 | 90.1-2013 |
| District of Columbia | 90.1-2013^ | 90.1-2019 |
| Florida | 2021 IECC and 90.1-2019^ | 90.1-2016 |
| Georgia | 2015 IECC and 90.1-2013^ | 90.1-2013 |
| Hawaii | Home rule | 90.1-2013 |
| Idaho | 2018 IECC and 90.1-2016 | 90.1-2013 |
| Illinois | 2021 IECC and 90.1-2019 | 90.1-2019 |
| Indiana | 90.1-2007 | 90.1-2007 |
| Iowa | 2012 IECC and 90.1-2010 | 90.1-2007 |
| Kansas | Home rule | No statewide code |
| Kentucky | 2012 IECC and 90.1-2010 | 90.1-2007 |
| Louisiana | 2021 IECC and 90.1-2019^ | 90.1-2016 |
| Maine | 2015 IECC and 90.1-2013 | 90.1-2013 |
| Maryland | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| Massachusetts | 2018 IECC and 90.1-2016^ | 90.1-2019 |
| Michigan | 2015 IECC and 90.1-2013^ | 90.1-2013 |
| Minnesota | 90.1-2019^ | 90.1-2019 |
| Mississippi | None statewide | No statewide code |
| Missouri | Home rule | No statewide code |
| Montana | 2021 IECC and 90.1-2019 | 90.1-2019 |
| Nebraska | 2018 IECC and 90.1-2016 | 90.1-2013 |
| Nevada | 2018 IECC and 90.1-2016 | 90.1-2013 |
| New Hampshire | 2018 IECC and 90.1-2016^ | 90.1-2013 |
| New Jersey | 90.1-2019 | 90.1-2019 |
| New Mexico | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| New York | 2018 IECC and 90.1-2016^ | 90.1-2016 |
| North Carolina | 2015 IECC and 90.1-2013^ | 90.1-2010 |
| North Dakota | Home rule | No statewide code |
| Ohio | 2021 IECC and 90.1-2019^ | 90.1-2016 |
| Oklahoma | 2006 IECC and 90.1-2004 | <90.1-2007 |
| Oregon | 90.1-2019 | 90.1-2019 |
| Pennsylvania | 2018 IECC and 90.1-2016 | 90.1-2013 |
| Rhode Island | 2018 IECC and 90.1-2016^ | 90.1-2013 |
| South Carolina | 2009 IECC and 90.1-2007 | 90.1-2007 |
| South Dakota | Home rule | No statewide code |
| Tennessee | 2021 IECC and 90.1-2013 | 90.1-2007 |
| Texas | 2015 IECC and 90.1-2013 | 90.1-2013 |
| Utah | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| Vermont | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| Virginia | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| Washington | 2018 Washington State Energy Code | 90.1-2019 |
| Tennessee | 2012 IECC and 90.1-2010 | 90.1-2007 |
| Texas | 2015 IECC and 90.1-2013 | 90.1-2013 |
| Utah | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| Vermont | 2018 IECC and 90.1-2016^ | 90.1-2019 |
| Virginia | 2021 IECC and 90.1-2019^ | 90.1-2019 |
| Washington | 2018 Washington State Energy Code | 90.1-2019 |
| West Virginia | 90.1-2013 | 90.1-2013 |
| Wisconsin | 2015 IECC and 90.1-2013^ | 90.1-2010 |
| Wyoming | Home rule | No statewide code |
- ^ When an amendment impacting energy efficiency can be quantified using DOE Prototype Building Models, they were captured in the analysis.
- For states adopting both IECC and 90.1, the IECC code is usually analyzed as the state current code in this study except for states with extensive amendments to the IECC.
Design Guide Key Concepts for Private Offices
Designing an energy-efficient lighting control solution for private offices involves strategic placement of occupancy sensors to ensure comprehensive coverage of the space.
In a storage room, the primary areas that require lighting are the main walkways and the individual aisles between shelves. Here are some guidelines to follow:
- Main Walkways: Install ceiling occupancy sensors at regular intervals along the main walkways. These sensors should be set to Auto ON and Full OFF mode, ensuring that lights turn on automatically when someone enters the walkway and turn off when the area is vacant.
- Individual Aisles: For individual aisles between shelves, consider installing wall occupancy sensors at the entrance of each aisle. These sensors can detect when someone enters the aisle and turn on the lights accordingly. Given the sporadic usage of these aisles, the sensors should be set to Manual ON and Full OFF mode. This means that the lights will only turn on when manually switched on but will turn off automatically when the aisle is vacant.
- Entrance Area: The entrance area of the storage room should have a wall sensor switch that allows manual control of all lighting in the room. This switch can be used to turn all lights on or off as needed, providing an additional layer of control.
- Sensor Placement Considerations: When placing sensors, ensure they are not located near air vents or other sources of movement that could trigger false positives. Also, ensure that the sensors’ field of view is not obstructed by shelves or stored items.
- Sensor Height: Consider the height of the sensor installation. Sensors should be installed at a height that allows for optimal coverage of the room, taking into account the height of stored items.
- Manual Control: Incorporate manual controls to allow users to turn ON/OFF all lighting when needed. This can be particularly useful in storage rooms where lighting may be required for extended periods during inventory checks or reorganization tasks.
Featured Products & Solutions
Wall Sensor Switches
RZ020/021 Motion Sensor Switches
- 2-wire, 3-wire, 4-wires wiring options
- Occupancy, Vacancy, Manual ON/OFF
- Adjustive time delay and ambient light control
Multi-Location Wireless Wall Sensors
RZ020A/021A + RZ022W Kits
- Hardwired RZ021A/022A occupancy sensor switch
- Wireless companion switch (RZ022W) for multi-location control
Ceiling Occupancy Sensors
RZ036
- Hardwired occupancy sensors
- Auto ON, auto OFF
- Line voltage and Low voltage available
Core features included:
- Integrated manual ON/OFF control for all lighting
- Vacancy sensors (Manual ON only): Lights must be turned on manually only
- Adjustable time-delay, lighting is automatically turned full OFF after 15mins
- Additional: multi-location wireless kits to expand the control range without re-wring
- Additional: multiple wiring options available for both new constructions and retrofit projects.
Meets the Mandatory Provisions
IECC – 2011
C405.2.1 Occupant sensor controls
Occupant sensor controls shall be installed to control lights in the space.
C405.2.1.1 Occupant sensor control functions
- Manual on or partial on to no more than 50% power.
- Full off within 20 minutes after all occupants have left the space
- A manual control to turn off the lights.
ASHRAE 90.1 – 2022
9.4.1.1 a Local control
There shall be one or more manual lighting control device that provides ON and OFF control
of all lighting in the space.
9.4.1.1 H Automatic full OFF control
All lighting in the space shall be automatically shut off within 20 minutes of all occupants leaving the space
Additionally, for storage rooms with sizes <50 ft2:
9.4.1.1 b Restricted to manual ON
None of the lighting shall be automatically turned on
Title 24 – 2022
130.1 (a) Manual area controls.
Each area enclosed by ceiling-height partitions shall provide lighting controls that allow the lighting in that area to be manually turned on and off.
130.1 (c) Shut-OFF Controls.
Lighting shall be controlled with occupant sensing controls to automatically shut OFF all of the lighting in 20 minutes or less after the control zone is unoccupied that shall function either as:
- A. Occupant sensing controls (if 130.1(b) not required to have multi-level lighting controls); or
- B. Partial-ON occupant sensing controls, or
- C. Vacancy sensing controls, where all lighting responds to a manual ON input only
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