Best Practices for Energy-Efficient Pharmaceutical Storage

Pharmaceutical storage facilities consume significant energy, with HVAC and refrigeration systems accounting for up to 70% of total usage. Efficient energy practices not only lower costs but also ensure compliance with strict storage regulations, like Health Canada's GUI-0069 guidelines. Here's a quick breakdown of actionable strategies to improve energy efficiency while maintaining product integrity:

• Building Envelope: Use insulated metal panels (IMPs) to prevent thermal loss and air infiltration. Address vulnerable areas like loading docks with vertical dock levellers.
• Facility Layout: Implement thermal zoning to condition specific areas based on temperature needs and avoid inefficiencies.
• HVAC and Refrigeration: Upgrade to variable-speed compressors, low-GWP refrigerants, and electronic expansion valves. Optimize setpoints to prevent over-cooling.
• Monitoring and Automation: Use continuous monitoring systems and Building Automation Systems (BAS) to track conditions, predict maintenance needs, and reduce energy waste.
• Lighting: Install LED fixtures and occupancy sensors to minimize heat emissions and electricity use.
• Equipment Maintenance: Regularly clean coils, inspect door seals, and calibrate sensors to maintain efficiency.
• GTA-Specific Considerations: Account for Toronto's climate extremes, rising carbon taxes, and refrigerant regulations. Consider energy-efficient features like heat pumps and solar power.

Key takeaway: Combining these strategies can cut energy use, reduce operational risks, and meet compliance standards - all while saving money.

Building and Facility Design

Improving Building Envelope Performance

The building envelope - comprising walls, roof, floors, and doors - is the first line of defence against energy loss. In pharmaceutical storage, a poorly insulated or sealed envelope can strain HVAC systems, increasing costs and risking temperature inconsistencies.

In Canada, insulated metal panels (IMPs) are popular for pharmaceutical storage facilities due to their combination of structural strength, superior insulation, and airtight vapour barriers, all in one prefabricated component. Unlike traditional multi-layer wall systems, IMPs prevent thermal bridging, which occurs when heat bypasses standard insulation. Panels with EPS, PIR, or mineral wool cores maintain consistent R-values and, when paired with tightly sealed tongue-and-groove joints, effectively block humid air infiltration and thermal loss. This is especially important in regions like the GTA, where seasonal temperatures vary widely.

A great example is the industrial building at 587 Avonhead Road in Mississauga. Completed in August 2025 by Baldassarra Architects, this 360,000-square-foot facility became one of Ontario’s first net-zero carbon-certified buildings. It incorporated approximately 107,300 square feet of Kingspan QuadCore Optimo and KS Shadowline insulated metal panels. Michael Baldassarra, the project architect, highlighted the benefits:

"Using insulated metal panels is really the way to go when you're trying to hit net-zero carbon buildings – they make satisfying the criteria much easier." - Michael Baldassarra, Architect, Baldassarra Architects

Another often-overlooked area for energy loss is loading docks, which are prone to air infiltration. Vertical dock levelling technology, like that used at the Lakeridge Logistics Centre in Ajax, addresses this issue effectively. This 1.2-million-square-foot facility achieved Zero Carbon Building–Design certification and reduced annual carbon emissions by about 53,500 kg. Additionally, supplementary heating at loading bays helps maintain stable temperatures during frequent shipments.

These envelope improvements lay the groundwork for more efficient internal layouts, which are explored next.

Optimizing Facility Layout

Once the building envelope is addressed, the next step is refining the facility's internal layout to maximise energy efficiency. The cornerstone of this approach is thermal zoning - grouping storage areas based on temperature needs so that each zone can be conditioned separately, avoiding the inefficiency of treating the entire space as a single unit.

A practical example is the United Therapeutics Phase 5 cGMP Warehouse in Research Triangle Park, NC, completed in 2023. This 55,000-square-foot facility includes a 7,000-square-foot cold room that operates independently from the 27,500 square feet of ambient storage. This design allows HVAC systems to maintain precise temperature levels in each zone without over-conditioning the ambient areas. The design team - DPR Construction, Hanbury Architects, and Affiliated Engineers Inc. - also strategically avoided placing cold rooms near exterior walls or loading docks to minimise temperature fluctuations.

Proper layout design also impacts airflow. Poorly placed racks or walls can create "dead zones" where temperatures fall out of range. Conducting 3D thermal mapping during the design phase, using a dense grid of sensors, can identify these risks before operations begin. As instruVU explains:

"Temperature mapping is the definitive tool for mitigating risk... it reveals the invisible risks - hot spots near skylights, cold pockets near loading docks, and the impact of HVAC cycling - that jeopardize product safety." - instruVU

Involving building managers early in the design process ensures the facility is commissioned and operated as planned, bridging the gap between projected and actual energy performance. Together, these strategies ensure that facilities meet stringent storage requirements while maintaining energy efficiency.

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HVAC and Refrigeration Systems

Upgrading to High-Efficiency Equipment

Once the building's envelope and layout are optimized, attention naturally shifts to the mechanical systems, which are often the largest energy consumers in pharmaceutical storage. HVAC and refrigeration systems play a critical role, and upgrading to modern, energy-efficient equipment can dramatically lower operating costs while ensuring compliance with strict regulations.

One of the most impactful upgrades involves switching to variable-speed inverter compressors. Unlike traditional fixed-speed compressors, these systems adjust their output based on cooling needs. For example, they ramp up during door openings and slow down during steady periods. This dynamic adjustment can cut energy consumption by up to 40% compared to older models.

Another key improvement is adopting low global warming potential (GWP) refrigerants such as R32, R448A, or natural hydrocarbons like R290 (propane). These refrigerants not only enhance heat transfer but also reduce environmental impact. For instance, R32 lowers global warming impact by 71% compared to R-410A. For ultra-low temperature (ULT) freezers, retrofits using R448A or R472B refrigerant combinations can improve the Coefficient of Performance (COP) by up to 22.14% and slash a facility's carbon footprint by 50% to 75%.

Upgrading to Electronic Expansion Valves (EEVs) also boosts efficiency by offering precise refrigerant control, which in turn improves COP. When paired with vacuum insulation panels (130 mm thick) on freezers, these upgrades significantly reduce heat gain, easing the workload on compressors.

For facilities requiring uninterrupted operation, redundant cooling configurations - such as dual independent inverter compressors - are a game-changer. These systems ensure that even if one unit fails, the other maintains stable temperatures. A notable example comes from Industrial Cooling Equipment Ltd, which completed a project in North Wales between September 2023 and April 2024. Led by Managing Director Nick Griffiths, the team installed four independent direct expansion refrigeration systems for a chillstore (2°C to 8°C) and two for a freezer (below −20°C). Using Danfoss Optyma Plus packaged units and Daikin R32 VRV 5 Heat Recovery Systems, the facility achieved 100% run and standby redundancy, ensuring compliance around the clock.

These equipment upgrades, combined with precise control strategies, can further enhance energy efficiency and system performance.

Setpoint Optimization and Control Strategies

Fine-tuning system controls is just as important as upgrading equipment. A common mistake is over-cooling, where a 2°C to 8°C storage area is unnecessarily maintained at 2°C when 5°C would suffice. This not only wastes energy but also places undue strain on refrigeration systems. Using microprocessor controls to set precise temperatures - like 5°C for 2°C to 8°C storage - can prevent this waste.

Take the example of a pharmaceutical plant in Laval, Québec, where AirGreen Climatisation & Chauffage implemented advanced control strategies in February 2026. By upgrading the Building Management System (BMS) software and replacing sensors with a 1.4°C deviation, they achieved consistent thermal stability at ±0.3°C. The changes led to a 28% reduction in emergency interventions and a 17% drop in monthly energy costs.

"In the pharmaceutical industry, every minute matters. At AirGreen, we know your indoor climate is a vital link in your value chain." - AirGreen Climatisation & Chauffage

Dividing storage into independent zones with dedicated sensors is another effective strategy. This prevents conditions in one zone from affecting others. Using swirl diffusers instead of standard grilles also improves air mixing, ensuring uniform temperatures across each zone. For humidity control, eliminating unnecessary reheating cycles during dehumidification is key. A study published in Frontiers in Built Environment (2024) highlighted this approach in a 1,728 m² pharmaceutical warehouse in Jiangsu Province, China. The refined control strategy improved the system's COP from 2.2–2.4 to 2.9–3.1, resulting in a 20.2% reduction in electricity use over an entire cooling season.

Automated alerts add another layer of protection. By triggering notifications when temperatures deviate by more than ±0.5°C, staff can act quickly to safeguard product integrity and maintain compliance with Health Canada standards. These strategies integrate smoothly into broader energy management systems, ensuring efficient and reliable operation.

Monitoring and Energy Management

Continuous Monitoring for Compliance and Efficiency

Accurate and reliable data is the backbone of efficient operations. Continuous monitoring offers real-time updates on temperature, humidity, pressure, and airflow, helping facilities catch any irregularities before they become serious problems.

During initial temperature mapping, using a 3D sensor grid is key to identifying hot and cold spots in the storage area. This helps establish fixed monitoring points. For critical zones like vaccine storage, wired sensors (RS-485/Modbus) ensure a dependable signal. In contrast, wireless sensors (Wi-Fi/LoRa) are ideal for auxiliary areas or retrofits, as they are easier to install and relocate. According to GDP regulations, sensors must sample data at intervals of no more than 5 minutes, and they should be calibrated annually by an ISO/IEC 17025 accredited lab to maintain a deviation of no more than ±0.5°C.

Continuous monitoring goes beyond meeting compliance standards - it enables predictive maintenance. By analysing long-term equipment trends, facilities can detect issues like refrigerant leaks or compressor wear early, reducing the chance of costly breakdowns. This approach can lower equipment maintenance expenses by as much as 20%. The insights gained from monitoring can also feed into automated systems, enhancing energy management across the facility.

Building Automation Systems (BAS)

Continuous monitoring becomes even more effective when paired with a Building Automation System (BAS). A BAS integrates HVAC, refrigeration, lighting, and environmental monitoring into a unified platform. Instead of managing each system separately, the BAS uses real-time data to make decisions that optimise efficiency. For example, it can schedule HVAC runtimes based on production schedules, shut down unoccupied zones, or trigger alarms when conditions fall outside acceptable ranges.

"Smart pharmaceutical facilities are not defined by the number of systems they have, but by how well those systems work together." - Pharma Access

Using automation can cut energy costs by 15–30%. Advanced AI-driven predictive controllers can push refrigeration savings even higher, reaching up to 36% in industrial settings. On the compliance side, modern BAS platforms simplify record-keeping by automatically generating GDP- and USP 1079-compliant documentation, including Mean Kinetic Temperature (MKT) calculations during temperature excursions. This can reduce the labour needed for audits by around 40%.

"A well designed BEMS should be able to control and monitor important environmental parameters... important for safeguarding the quality of pharmaceutical products during manufacture and in storage." - Paddy Gunn, Pharmaceutical Business Development Manager, Trend

Energy Audits and Performance Tracking

Energy audits provide a snapshot of how a facility is performing. As Stan Nabozny from Michaels Energy explains:

"An energy audit is a snapshot. Energy audits miss dynamic operational shifts that affect savings." - Michaels Energy

In refrigerated pharmaceutical facilities, demand charges can account for 30% to 70% of the total electricity bill. Audits should focus on peak demand issues, such as simultaneous compressor starts, uncontrolled heaters, and fixed defrost cycles that fail to account for actual frost levels.

Here’s a real-world example: In March 2026, a national retailer with a 6,500 m² cold storage facility maintained at approximately −19°C implemented a load-shifting strategy using thermal energy storage (TES). By moving compressor-heavy operations to off-peak hours and incorporating onsite solar power, the facility cut its electricity bill by about 15%, all while maintaining strict temperature control. Tracking key metrics - like door open time to measure heat infiltration or defrost termination temperature to spot coil inefficiencies - helps pinpoint areas where energy is being wasted. When audit findings are combined with BAS capabilities, energy optimisation becomes much more straightforward.

Equipment-Level Strategies

Choosing Energy-Efficient Cold Storage Units

After addressing facility design and HVAC systems, selecting the right cold storage equipment and maintaining it properly is the next step to achieving long-term energy efficiency.

The equipment you choose has a direct impact on daily energy use. One standout feature to look for is variable-speed (inverter) compressors. Unlike fixed-speed models that operate at full power all the time, inverter compressors adjust their output based on factors like thermal load and door activity. This makes them a smart choice for standalone cold storage units.

Another crucial factor is insulation. High-performance units often use vacuum insulation panels (VIP) or 130 mm high-density foam, both of which minimize heat gain and reduce the strain on compressors to maintain precise temperatures. Additionally, opting for natural refrigerants like R290 and R600a can lower environmental impact while improving heat exchange efficiency compared to traditional HFCs.

For facilities storing sensitive products like biologics, N+1 redundancy is vital. This setup involves dual independent refrigeration circuits, ensuring that if one compressor fails, the other can maintain the required temperature. This is particularly important in pharmaceutical cold rooms, where a single temperature excursion could lead to product losses ranging from $100,000 to $500,000.

Modern Large-Scale Storage Units (LSSUs) offer another energy-saving option. These systems can cut power consumption by up to 66% by consolidating multiple freezers into one modular unit. They also expel excess heat directly to the atmosphere using drycoolers, reducing HVAC energy use by as much as 98%. For instance, ACH Solutions, an Ontario-based manufacturer, provides cold rooms to pharmaceutical facilities in the GTA that use PIR foam panels and thermal load analysis to achieve temperature uniformity within ±0.5°C for storage ranges of +2°C to +8°C. This approach avoids the inefficiencies caused by undersized equipment.

When paired with diligent maintenance, these features help ensure optimal equipment performance and energy savings.

Maintenance and Operational Best Practices

Even the most efficient cold storage equipment can lose its edge without proper maintenance. Beyond selecting high-performing units, a strong maintenance plan is key to preserving energy efficiency.

One simple but effective task is cleaning condenser coils. Dirty coils make compressors work harder, increasing energy consumption. Experts recommend cleaning coils at least twice a year, or quarterly in dusty environments.

Door seals are another critical area. Monthly visual checks and annual physical inspections can prevent leaks, as damaged seals can increase refrigeration loads by 10–25%. When purchasing new units, look for features like magnetic gaskets and self-closing doors to reduce the risk of temperature excursions.

"In every GDP audit I have conducted... the most common finding is not temperature excursions - it is unmanaged temperature excursions." - Michel Tremblay, MBA, CQIA, Specialist in cold chain maintenance

Defrosting is another opportunity to save energy. Using demand-based defrost systems, which rely on airflow or pressure sensors, can cut defrost-related energy use by 20–40%.

The table below outlines recommended maintenance activities and their frequencies:

Maintenance Activity	Recommended Frequency	GDP Documentation Required
Refrigeration Unit PM	Semi-annual (quarterly if >10 years old)	PM record with technician credentials and findings
Sensor Calibration	Annual minimum	Calibration certificate traceable to NIST/NRC
Door Seal Inspection	Monthly visual / Annual physical	Inspection log with gap measurements
Condenser Coil Cleaning	Semi-annual (quarterly in dusty areas)	Cleaning record with pressure differential readings
Alarm System Test	Quarterly	Test record of each alert threshold per zone

Staying consistent with these tasks prevents "savings drift", where efficiency gains erode over time due to ignored settings or temporary overrides. Combining a well-structured maintenance schedule with building automation and continuous monitoring ensures your equipment stays efficient and accountable.

Lighting and Ancillary Systems

LED Lighting and Occupancy Sensors

Lighting plays a key role in managing energy use and maintaining product integrity in pharmaceutical storage. Using industrial-grade LED fixtures can significantly reduce heat emissions, which in turn lowers refrigeration demands. LEDs are dependable in extremely cold conditions (as low as −40°C), generate minimal heat, and emit no UV radiation - making them ideal for protecting light-sensitive products.

"LEDs emit significantly less heat compared to traditional lighting, reducing the load on refrigeration systems." - Wipro Lighting

Combining LEDs with occupancy and motion sensors takes energy efficiency to the next level. In large warehouses, where many areas are used intermittently, these sensors ensure lights are only on when needed. For example, AstraZeneca Canada's Mississauga facility collaborated with 360 Energy from 2008 to 2010 to upgrade its warehouse lighting. The project included LED and fluorescent fixtures, motion sensors, and a daylight harvesting control system. Along with HVAC upgrades, these changes resulted in a 10% annual electricity savings. Additionally, retrofit incentives make LED upgrades even more cost-effective.

These lighting improvements align with broader efforts to minimize energy waste in supporting systems.

Supporting Systems and Renewable Options

Beyond lighting, optimizing other systems like ventilation and compressed air can further reduce energy consumption. For instance, adding variable-speed drives (VSDs) to fans can lower fan energy use by 30% to 50%. Demand-controlled ventilation offers even greater savings in some cases. A biopharmaceutical facility in Ireland demonstrated this by implementing fresh air volume and pressure gradient controls across 185 cleanrooms, cutting fan energy use by over 203,000 kWh annually and saving more than €49,000 each year.

Renewable energy solutions, such as on-site solar power, also hold great potential for large pharmaceutical storage facilities. Take United Therapeutics' Project Lightyear as an example. Completed in January 2023 in Research Triangle Park, NC, the project features 1,186 roof-mounted photovoltaic (PV) panels and two Tesla Megapacks, providing 6.2 MWh of battery storage. This system delivers 48 hours of backup power for the facility’s cold room, operates entirely fossil-fuel-free, and has earned LEED Gold certification. While this particular project is in the U.S., the approach is highly relevant to Canadian facilities, especially those in the GTA aiming to reduce operational costs and carbon emissions over time.

"Solar energy options in pharma plants are changing the way pharma plants are operated by cutting costs on energy, increasing their sustainability and increasing their operational resilience." - Kate Williamson, Editorial Team, Pharma Focus Europe

Cold Storage Trends Master Class: Improving energy efficiency in cold storage warehouses

GTA-Specific Considerations

Adapting energy-efficient practices to local conditions is essential, especially when dealing with the unique challenges of the GTA. Here's a closer look at what makes the region distinct and how businesses can navigate these factors.

Climate and Facility Requirements in the GTA

The climate in the Greater Toronto Area creates significant challenges for pharmaceutical storage facilities. Winters can plunge to −18°C, while summer highs can hit 31°C, often accompanied by a wet-bulb temperature of 23°C. Summer humidity adds another layer of complexity, requiring dehumidification systems to maintain precise conditions of ±1°C and 45–55% relative humidity. To handle these extremes effectively, HVAC systems must be sized correctly using Manual J load calculations based on GTA-specific climate data, rather than relying on broad "rule-of-thumb" methods. This approach minimizes risks like short-cycling and poor humidity control.

Looking ahead, Ontario's climate is expected to warm by 1–2°C over the next 50 years, which will increase cooling demands while reducing heating needs. At the same time, rising costs from the federal industrial carbon tax - set at $110 per tonne by 2026 - are pushing businesses to adopt electric air-source heat pumps. Adding to this, Canada will ban new equipment using R-410A refrigerant starting January 1, 2026, forcing a transition to more eco-friendly alternatives like R-454B or R-32. Systems holding 10 kg or more of refrigerant must also include automatic leak detection (ALD). Programs like Ontario's Save on Energy Retrofit Program, which can cover up to 50% of qualifying upgrade costs, provide financial support for these necessary adjustments.

Given these factors, choosing the right property becomes even more critical to meet operational and regulatory demands.

Working with an Industrial Real Estate Advisor

With the GTA's energy and climate challenges in mind, partnering with a knowledgeable real estate advisor can make a significant difference in identifying facilities that meet all requirements.

Michael Law of Lennard Commercial focuses on industrial real estate in Toronto and the surrounding area, including pharmaceutical storage spaces. His team can help businesses find properties with key features like R-40 roof insulation, R-18 insulated dock doors, and heat pump systems. These elements are crucial for maintaining stable temperatures and improving energy efficiency. As the refrigerant transition progresses, having an advisor who understands the technical needs of pharma-grade cold storage can help avoid costly compliance issues and upgrades.

"The top tenants who are secured by the best credit are going to be looking for buildings that are carbon net-zero." - Shlomo Benarroch, Principal, Avison Young

The GTA industrial market is already adapting to these demands. For example, in April 2025, Pure Industrial announced that the Lakeridge Logistics Centre in Ajax, ON, had become the largest industrial property in Canada to achieve Zero-Carbon Building (ZCB) Design certification. This 1.2 million-square-foot facility includes on-site solar, a high-performance building envelope, and a fully integrated automation system. Similarly, Vaughan 400, a 510,000-square-foot development by Carttera and OPTrust, is set for completion in Q3 2026 and will meet zero-carbon performance standards with features like R-40 roof insulation and heat pump systems.

Whether you're renewing a lease, relocating, or purchasing a facility, Lennard Commercial's expertise in the GTA industrial market can help ensure your property aligns with your operational goals and energy efficiency needs.

Conclusion: Key Takeaways

Summary of Best Practices

Improving energy efficiency in pharmaceutical storage takes a multi-layered approach, where small changes add up to significant savings over time. The first step with the biggest impact? Optimizing HVAC systems. From there, the most efficient facilities combine several strategies: a well-sealed building envelope, precise temperature and humidity controls, continuous monitoring systems, and LED lighting paired with occupancy sensors to cut down on unnecessary energy use. Together, these elements create a system that minimizes waste across all operations.

At the equipment level, localized isolation technologies - focusing on conditioning the storage unit itself rather than the entire room - can lower energy use by 30%–50%. Combine this with a Building Automation System (BAS) and regular energy audits, and you’ve got a recipe for maintaining compliance while keeping costs in check. These strategies work together seamlessly, reinforcing an overarching plan for energy efficiency in pharmaceutical storage.

Long-Term Benefits of Energy Efficiency

The financial upside of these practices is hard to ignore: many energy-saving measures in the pharmaceutical industry recoup their costs in less than four years. A great example is the Lakeridge Logistics Centre in Ajax, Ontario, which managed to slash its annual energy use by 26% and cut carbon emissions by roughly 53,500 kg.

But it’s not just about saving money. Energy-efficient facilities are better equipped to meet regulatory requirements and adapt to changing industry standards.

"Efficiency is all about reducing waste, and reducing waste of any kind - energy, water, space, capital cost - when designing, building and operating facilities adds directly to the bottom line." - Cleanroom Technology

The momentum is undeniable: 93% of life science companies now have formal sustainability plans in place. For pharmaceutical storage operators in the GTA, investing in energy efficiency today isn’t just about cutting costs - it’s about building facilities that stay competitive, compliant, and ready for the future.

FAQs

What are the quickest energy-saving upgrades for pharma cold storage?

To improve energy efficiency in pharmaceutical cold storage, try these straightforward upgrades:

• Demand-defrost systems: These systems only defrost when necessary, reducing energy consumption by 5–10%.
• LED lighting: Cold-environment-rated LEDs can slash energy costs by 50–75%.
• High-speed automatic doors: These doors help limit air infiltration, leading to energy savings of 30–70%.

Don't overlook routine maintenance either - tasks like cleaning condenser coils and ensuring refrigerant levels are correct are crucial for keeping everything running smoothly.

How do I improve efficiency without risking GDP/Health Canada compliance?

To improve energy efficiency without compromising Health Canada and GDP compliance, it's essential to adhere to strict Quality Risk Management (QRM) principles. Here's how to achieve this:

• Leverage detailed data: Conduct an in-depth analysis of 8760-hour heating and cooling loads. This helps to fine-tune your systems for optimal performance year-round.
• Upgrade your systems: Invest in precise, remotely adjustable sensors and modern HVAC equipment. Opt for systems that use low-GWP refrigerants to reduce environmental impact.
• Validate every change: Carefully document and test all upgrades to ensure they meet compliance requirements and maintain patient safety standards.

By following these steps, you can strike the right balance between energy efficiency and regulatory compliance.

What GTA-specific building features matter most for energy-efficient storage?

In the Greater Toronto Area, creating energy-efficient pharmaceutical storage relies heavily on high-performance building envelopes and cutting-edge systems. These facilities are designed with features that optimize energy use while maintaining strict climate control.

Key elements include:

• Continuous insulation: Minimizes heat transfer, ensuring stable interior temperatures.
• Vertical dock levellers: Help prevent air leaks, maintaining airtight conditions.
• All-electric HVAC systems: Options like air-source heat pumps paired with energy recovery ventilators ensure efficient heating, cooling, and ventilation.

Additional measures enhance efficiency further:

• Destratification fans: Improve air circulation and temperature consistency.
• LED lighting with occupancy sensors: Reduces energy consumption by lighting only occupied areas.
• Centralized climate control automation: Allows precise management of temperature and humidity levels.
• Rooftop solar arrays: Generate renewable energy to offset electricity use.

These features collectively ensure that pharmaceutical storage facilities meet both energy efficiency standards and the strict environmental requirements of the industry.