The social, environmental and technological challenges for the commercial real estate sector are significant. Many building owners and managers are still adjusting to the disruptions of the COVID pandemic, lock downs, remote working, mask mandates, rising energy costs and the move to hybrid work models. Few, if any, anticipated these events, nor the dramatic shifts they would kick start in building management and design.
On top of quickly developing social changes, there’s the long-term environmental impacts of global warming. Much of the planet is already feeling the implications of rising temperatures with increased flooding events, stronger storms, and eroding coast lines. All pose specific risks to property owners, since 10% of the world’s population lives in coastal areas that are less than 10 meters above sea level, according to an UN fact sheet.
Increased migration to cities and urban areas is spurring building development to a faster pace. The World Economic Forum estimates that two-thirds of the global population is expected to live in cities by 2050 and already an estimated 800 million people live in more than 570 coastal cities vulnerable to a sea-level rise of 0.5 meters by 2050. Technological advances pose yet another challenge to commercial real estate owners, as many feel the pressure by market competition and new government regulations to adopt energy and time saving building tech.
Given these social, environmental and technological challenges, it would seem change itself is becoming increasingly accelerated and unpredictable. Making things worse is the fact that we know less about the extent to which these factors affect each other. A warmer climate makes future pandemics more likely, which increases remote working, which reduces greenhouse gases. But higher temperatures also increase HVAC demand, which increases energy usage and greenhouse gases.
The entire system is connected, and each component poses a significant challenge in its own right; however, when combined, they will undoubtedly produce unforeseen outcomes that require quick course corrections at best, and entire paradigm shifts at worst.
While no one can predict the future, they can position themselves and their properties to better manage the unknown unknows. One way to stay flexible and adaptable is to adopt automated building controls built on open source protocols. Open building systems benefit from more technological flexibility, which can act as an important hedge against uncertainty.
Open System Protocols: A Short History
In the late 70’s early 80’s, large companies like Siemens, Johnson Controls and Honeywell took the first steps in connecting systems through electronic networks. Each brand developed proprietary “languages” or protocols that allowed building components like HVAC, lighting and alarms to “talk” to one another. While this created an efficient, dependable and integrated system, it also locked each property owner into the company’s proprietary hardware and software. And since connected systems were intended to last a decade or more, owners had little flexibility for innovation and change. In fact, it was the building systems provider that determined the speed and quality of that change.
Later in the mid to late 90’s, new organizations and companies like Tridium would introduce open protocols like the Niagara Framework, BACnet and LonWorks. These component languages didn’t limit owners to one brand by speaking one language. Instead, they could “interpret” between the other protocols, freeing owners to mix and match brands. Being “open” now meant property owners and managers could change the way they invested and used building technology.
Today, open protocols are a key play in helping evolve the next generation of automated building systems via IoT devices and smart building technology.
Open Systems and Adaptability
With open protocols, owners and managers can adapt quickly to market trends. With propriety systems, you’re locked into one manufacture’s software and hardware. Making upgrades or replacing components can be more costly than an open system. That’s because an open system is much like an open market. The more companies that compete for your business, the lower the price. Having the choice to shop around gives you budget flexibility to stay solvent sudden market fluctuations.
Quality is also affected. With open building systems, you can expand your search for new building systems and components outside a single contractor—who may or may not have the best quality available—and pick the best-of-breed tech. Component quality can vary based on priority, but open systems provide more flexibility for bigger investments. High quality investments are often long-term investments, so CAPEX projects also become easier to plan and deliver.
From a budgetary perspective, the best adaptability feature of open building systems is the ability to connect new devices to older systems. Open systems offer better ROI on legacy components. Building owners can realize their full technology investment by extending the life of older systems, while also adopting new solutions to keep them competitive.
Open source also makes it easier to customise your building systems. Non-proprietary protocols are valuable tools for developers and engineers to create bespoke solutions for the specific needs of their customers. Since connecting devices is easier, solutions are faster to develop, keeping you nimble and on-budget.
The Amazon “Biodome” campus in Seattle, Washington is a powerful brand statement about the company’s values.
Building Brand
Many of today’s biggest brands extend beyond their name recognition and marketing to include their physical properties. From Amazon’s Biodomes to Apple’s Spaceship, today’s corporate facilities and HQs are as much a part of the corporate brand as the logos themselves. But future businesses need not be on the Fortune 500 list to feel the necessity of such architectural recognition. Trends are already moving there fast, as post-pandemic attitudes toward workplace safety, air-quality and hygiene become part of a business’s social contract with its workers and communities. The safety and security occupants feel about a facility speaks volumes about those who own and lease its spaces.
In a recent episode of DCTV, Mitchell Day of Distech expressed the idea that a building is essentially a fundamental representation of a brand’s core values:
“A building is no longer just where you work,” he states. “A building expresses to the public who you are as a company, how you want [the public] to see how you see your employees and your products and who you want to be to the rest of the world.”
Day’s statement not only reflects the growing importance of facilities in general, but it also signals a shift in attitudes towards buildings as a core part of corporate responsibility. Today, brands feel more pressure than ever to adopt sustainable manufacturing processes, low-carbon footprint buildings, alternative energy sources and social responsibility. How a building functions, its efficiency and connectivity are indicators of that responsibility.
Open building systems offer the flexibility to adapt to cultural expectations. As Day himself says: “Open systems provide the power to give people more choices on how they express their brand.”
The Future is Complexity
It’s often said that buildings are “living” things, formed from complex systems working together to produce a habitable and safe environment for occupants. It’s an apt analogy, yet “complexity” is relative. With every passing year, emerging technologies like system integration, IoT, machine learning, smart tech and next gen sensors are making the dream of true system unification a reality. Tech is evolving at such a rapid pace it’s likely in a decade or two, today’s buildings may be likened to single-celled organisms by comparison. The entire “carpentered-world” will seem much more fluid.
While there are downsides to complexity to be sure, one of the biggest upsides is adaptability. The more complex, the more tools you have, and the more nuanced your approach can be. Complexity and connectivity are what property owners, and their buildings, will need to adapt to the challenges of future pandemics, energy transitions and global warming. Open building systems help building owners and managers manage such complexity.
Touch screens are ubiquitous. We use them at the grocery store to check out, and at the airport to check in. They’re at visitor center kiosks, our banks, our homes and even in our cars. And today, because they’re the primary interface of smartphones, touch screens are literally in our faces for 4.2 hours every day. They are the “Black Mirror” that fans of the series will know as that part of device that reflects our image back towards us.
But despite their prevalence, few know how touch screens work. It’s not because they’re a “new” technology (they’ve been around for roughly six decades). Instead, it’s likely a failure of users to fully appreciate the ingenuity that goes into solving the unique problem of connecting humans and computers through touch. To that end, here’s a quick look on the four basic types of touch screens and how they function. But first, a little touch screen 101.
How do Touch Screens Work?
All touch screens work by creating a predictable X and Y grid pattern on the surface of the screen (Think back to the coordinate plane of your primary math class). As our fingers or stylus interacts with the grid, we introduce a disturbance. The disturbance might be a fluctuation in electrical resistance, capacitance, heat or even acoustical wave flow. The screen’s sensors then detect these changes and use them to triangulate our finger/stylus position. Finally, the sensors translate our clicks and gestures to the CPU, which executes the appropriate command (e.g., “open the app”). Simple in theory, but complex in practice.
Screen Tech Tradeoffs
Like any technology, touch screens have several cost-benefit factors, and manufacturers tailor their products to maximise specific benefits for different consumer needs. One common tradeoff for touch screens is accuracy vs cost. Typically, the more accurate the screen, the more expensive, due to the extra components or more expensive materials used. Screen clarity is another consideration. Some screen designs provide 100% screen illumination, while others adopt layered screens, which can dampen resolution and brightness. Other common screen characteristics include:
Durability vs cost
Single vs multi-touch (i.e., two or more fingers)
Finger touch vs stylus vs both
Resistance to contaminants like water and oil
Sensitivity to electromagnetic interference (EMI) or direct sunlight
High vs low power consumption
Consumers and businesses often trade less-needed features for more desirable ones. For example, facility access screens require more durability and “touch life,” with less consideration towards clarity and multi-touch, while smartphone makers need both (and more!) to compete.
Resistive touch screens work like an electric switch, with users pressing layers to make contact and complete the circuit.
Resistive Touch Screens
The most straightforward touch screen design is the resistive touch screens (RTS). These screens employ a multi-layered design, which includes glass covered by a thin plastic film. In between these two layers is a gap with two metallic electrodes, both resistive to electricity flow. The gap is filled with a layer of air or inert gas, and the electrodes are organized in vertical and horizontal grid lines. Essentially, resistive touch screens work like an electric switch. When the user presses the screen, the two metallic layers come into contact and completes the circuit. The device then senses the exact spot of contact on the screen.
RTS are low-cost and use little power. They’re also resistant to contaminants like water and oil, since droplets can’t “press” the screen. Almost any object can interact with the screen, so even thick gloved hands are usable. However, RTS usually offer low screen clarity and less damage/scratch resistance.
Capacitive touch screens use small electrical charges to indicate where users are pointing.
Capacitive Touch Screens
One screen type you’ll find on almost every smartphone is the capacitive touch screen (CTS). These screens have three layers: a glass substrate, a transparent electrode layer and a protective layer. Their screens produce and store a constant small electrical charge or capacitance. Once the user’s finger touches the screen, it absorbs the charge and lowers the screen capacitance. Sensors located at the four corners of the screen, detect the change and determine the resulting touch point.
Capacitive screen come in two types: surface and projected (P-Cap), with the latter being the common screen type for today’s smartphones and tablets. P-Cap screens also include a thin layer of glass on top of the protective film and allows for multi-touch and thin gloved use. So, they’re popular in health care settings where users wear latex gloves.
Having fewer layers, CTS offer high screen clarity, as well as better accuracy and scratch resistance. But their electrified designs put them at risk of interference from other EMI sources. Plus, their interaction is limited to fingers and/or specialised styluses.
SAW touch screens transmit soundwaves, which are disrupted by finger touches and used to locate precise points on the screen.
Surface Acoustic Wave Touch Screens
Surface Acoustic Wave (SAW) touch screens use sound waves instead of electricity. SAWs have three components: transmitting transducers, transmitting receivers, and reflectors. Together, these components produce a constant surface of acoustic waves. When a finger touches the screen, it absorbs the sound waves, which, consequently, never make it to their intended receivers. The device’s computer then uses the missing information to calculate the location of touch.
SAWs have no traditional layers, so they tend to have the best image quality and illumination of any touch screen. They have superior scratch resistance, but are susceptible to water and sold contaminants, which can trigger false “touches.”
Infrared touch screens are similar to SAWs; only they use infrared light (IR) instead of sound waves to detect disruptions.
Infrared Touch Screen
Infrared (IR) touch screens are like SAW screens; in that they contain no metallic layers. However, instead of producing ultrasonic sounds, IRs use emitters and receivers to create a grid of invisible infrared light. Once a finger or other object disrupts the flow of light beams, the sensors can locate the exact touch point. Those coordinates are then sent to the CPU for processing the command.
IR screens have superior screen clarity and light transmission. Plus, they offer excellent scratch resistance and multi-touch controls. Downsides include high cost and possible interference from direct sunlight, pooled water, and built-up dust and grime.
The Niagara Framework (NF) is developed by Tridium, and if you visit the company’s website, you will learn Niagara is a “comprehensive software platform for the development and deployment of connected products and device-to-enterprise applications.” If you’re like most FMs and property owners, that description sounds pretty technical and dense, as if it were written in a different language. Ironically, the notion of miscommunication within different languages illustrates perfectly what the Niagara Framework is and, more accurately, what it attempts to solve.
Let’s try to clarify Tridium’s definition by breaking it down into parts, so that by the end of this article you should have a better idea of what Niagara does. We’ll start with a simple thought experiment, then take a deeper dive into how Niagara helps buildings and devices communicate.
Niagara: The Ultimate Travel Adapter
Imagine you’re going on an overseas vacation and need a travel adapter. While at the airport waiting to take off, you spot an adapter in a retail store window. However, it’s not just any old travel adapter, it’s the Ultimate Travel Adapter, equipped with hundreds of outlets for every country, region and plug type imaginable. What’s more, the adapter has older plugs styles, so now you can charge that ancient iPod you brought along. Imagine you bought such a product. What could it do for you?
For one, it would give you the flexibility to buy and use any device you wanted. It would free you from having to use one brand. It would eliminate compatibility issues. Plus, it would let you plug all your devices into one place, simplifying the management of all your electronics.
The Niagara Framework functions like the Ultimate Travel Adapter, connect all of your devices and platforms together into one architecture. You can find a Tridium explainer video here.
Next, imagine your adapter has controls for managing each device. It also comes equipped with a dashboard that shows power consumption, current status, and security alarms. Even better, you’re able to access all of this valuable information online. With such a digital tool, you could save energy by unplugging unneeded components, quickly identify failed devices and better predict outages. In short, you could save time and money by increasing your efficiency.
Finally, image your travel adapter itself adapts to the changing technological landscape. After all, plug styles come and go, and so your adapter must also adapt or risk becoming antiquated. Such an adaptation feature could help extend the life of your equipment, letting you bring your favorite devices into the future. It would give you considerable freedom and centralised control over your travel itinerary.
This, in a nutshell, is what the Niagara Framework platform does: it works as a “architecture” for connecting systems and devices for building operation and automation. Now let’s take a deeper dive into how devices and systems communicate to better understand Niagara’s role.
Protocols: The “Language” of Machines
Dozens of systems and hundreds of pieces of hardware make up modern buildings, and each of these components must communicate with one another. To accomplish this, building devices must share a common “language” or what engineers call a protocol. The result is “interoperability” of devices, which is the main goal of platforms like Niagara. This is what Tridium means by “development and deployment of connected products” within their description.
The two dominant standard protocols for building devices are BACnet and LonWorks. These protocols are why your smart meter can transmit energy data to your BMS, even though two different companies made them. The two companies have agreed to design their products using these standard protocols so that you could integrate them easily. Another benefit of standard protocols is that you get to pick and choose which devices you want to use, as opposed to being locked into using propriety hardware from a single vendor (think Apple products).
Standard vs Open Protocols
There are two basic approaches to achieving interoperability of devices: standard and open protocols. Open protocols are when hardware designers use a propriety language for their devices, but “open” their protocol for public use. Access to the protocol gives other developers the “dictionary” for building gateways and interfaces, which “interpret” from one machine language to another. Essentially, the company is saying: Take our protocol and design something that will let other devices work with it. Developers use these open protocols to ensure interoperability between their products and others.
Standard protocols work by building consensus among many different developers to adhere to a standard machine language. So, a standard protocol isn’t proprietary but shared among the members. The upside to a standard protocol is that it requires no interpreter or gateway. Devices speak directly to one another right out of the box.
The Niagara Framework adopts a standard protocol stance towards development of building automation devices. That is, it attempts to wrangle the long list of standard device protocols under one umbrella platform—a type of protocol for protocols. But more than devices make up buildings. What’s this “device-to-enterprise application” all about?
Buildings: A Polyglot of Digital Voices
In addition to device languages, there are also standards and protocols for almost everything that helps your building and business function. For example, there are computing standard languages for the internet (IP or internet protocols). Then there’s programming languages for software, operating systems (Windows vs Mac) and computer networks. When you add it all up, buildings are a cacophony of digital voices singing ones and zeros to each other (#ITjokes).
To ensure these voices sing in unison, enterprise standards like CORBA, XML and DCOM were created. These standards attempt to translate between different operating systems, programming languages and computing hardware. They ensure interoperability of platforms. Without them, companies would be inundated with service calls and services would grind to a halt.
The Niagara Framework, again, connects devices to any enterprise applications within your buildings. Say you wanted to pass energy usage data through to your accounting software. Because it’s a flexible platform that facilitates interoperability, you can use Niagara to easily build these types of connections. This is what Tridium means by “device-to-enterprise application.”
The Internet Connection
One big advantage the Niagara platform brings to building automation systems and devices is wireless connections. It achieves this by using the internet to connect all your devices and controllers. Thus, it sits firmly within the market of platforms that utilise the Internet of Things (IoT) to give building owners and managers granular access to every component of their systems.
In hardwired connections, your BMS would communicate to, say, your HVAC controller through a wired connection. Hardwired connections limit your access. But Niagara wireless internet connection gives you access through web browsers from anywhere. Connection via internet opens up possibilities. For example, it makes connecting new devices much easier. Management is easier too. Check the status of your fire safety systems while at home or on vacation.
Now, give Tritium’s definition another read: “Niagara Framework is a comprehensive software platform for the development and deployment of connected products and device-to-enterprise applications.” Hopefully, you understand it a bit better now.
Summary
Many systems make up today’s buildings. Fire alarms systems, HVAC systems, access systems and security systems to name a few. Today, most modern buildings have automated the management and operation of these systems. The Internet of things has streamlined management of systems, with sensors, devices, and equipment sending streams of data back for collelction and display to stakeholders.
The Niagara Framework is essentially a system of systems, a software architecture designed to integrate multi-vendor building automation systems (BAS) under one umbrella platform. It improves flexibility in managing, connecting, and visualising of your properties and data.
Charging tenants for after-hours air conditioning (AHAC) presents many difficult questions for FMs. How do I calculate an hourly rate? How do I separate after-hours billing from normal utility OPEX? Do I have enough resources and staff? Calculating and managing after-hours HVAC is complex, and some FMs choose to forgo charging tenants to avoid the hassle. Instead, they raise “maintenance fees” or other charges to cover the extra electricity.
If this describes your situation, there’s a good chance you’re falling short of recouping the full cost of your operating expenses. Plus, you may be missing out on other “softer” benefits associated with charging for AHAC services. Here are five reasons to start an after-hours HVAC program today.
1. After-Hours kWh Are Usually Peak Load Times
Most leases list “operating hours” for the work week at 8:00 am to 6:00 pm or something similar. This leaves evenings open for tenants to schedule after-hours HVAC (along with Sundays and holidays). However, peak hours for electricity also occur in the evenings, especially in the summer months. Peak hours or on-peak times are when you’re paying the highest price per kWh to run your HVAC system. So, tenants using after-hours AC in the evenings are consuming current at a premium. Even if you’re charging a general CAM fee or “admin fee” to cover the added energy costs, it may not be enough to offset these higher peak demand prices. And if you’re not charging at all, you’re certainly cutting into your profits.
2. AHAC Charges Encourage Energy Conservation
For seasoned FMs, it’s no secret that charging pro-rata rates for electricity doesn’t encourage conservation among your tenants. Absent a green lease or submetering, tenants show less incentive to save energy with pro-rata billing. Why put in the effort to save 10% per month if the savings will be split among everyone in the building? But an effectively managed after-hours HVAC program can counter this attitude. It works like a type of sub metering. Tenants are responsible for only their share of kWh used, and they are billed as such each month or quarter. This encourages them to bring down their electrical consumption to lower operating costs.
3. New Hybrid Workspaces Demand It
As the COVID pandemic begins to subside, companies are asking remote workers to return to the office. But some employees are pushing back, instead, demanding more flexible schedules. The expectation is that many employees will split their time between home and the office. These new work approaches will broaden normal operating hours and pressure FMs to adapt. Thus, the demand for “amenities” like after-hours HVAC will become necessities. By starting your after-hours program now, you’ll make the transition easier for your staff and clients.
4. It May Improve Your NABERS Rating
If you want an accurate assessment of your property to secure a NABERS Energy and Water rating, you’ll want to include any after-hours air conditioning (AHAC) requests. To rate your building’s efficiency, a NABERS assessor needs to calculate your total rated hours. First, he or she will calculate the power consumed during normal operating hours (ex. 8:00 am to 6:00 pm). Next, the assessor will add any qualifying AHAC requests to the total. However, requests must record the date, time and space. Simply handing the assessor a spreadsheet with the “total hours run” for the year won’t work. As a result, your AHAC hours data may be skewed or not counted. Inaccurate or omitted data lowers your efficiency rating, but an after-hours HVAC program will account for every kWh.
5. It’s Easy to Automate
Just the thought of adding a separate utility billing process to their weekly tasks is enough to turn many FMs off of charging for AHAC. It’s a legitimate concern. Manual scheduling and billing programs do require staff resources, time and spreadsheets to function. However, today’s after-hours HVAC apps automate the bulk of the process, leaving you with time to focus on your properties. Tenants use a mobile app or web browser to make after-hours HVAC bookings. The app then integrates with your BMS to carry out the request. Monthly billing is also automated, so recording mistakes are minimised and time management is maximised.
The move to smart buildings is here, and with it the demand for “smart power.” Innovations in wireless technology, monitoring hardware and cloud-based data are all making energy management systems a must have for FMs. Energy management ensures true power digitalisation—a state where every watt is recorded, stored and used to make informed, real time decisions about a building’s power usage.
One key component to power digitalisation is the energy power management system (EPMS). An EPMS is a specialized software that works as the “brains” for your energy monitoring strategy, giving you a broad look of your overall grid along with insights into every connected electrical asset. Here are a few ways an EPMS brings value to your properties.
Lower Electrical Costs
Because an energy management system provides transparency into your power consumption, you can lower energy costs by identifying ways to optimise your electrical usage. For example, use an EPMS to locate your biggest energy consuming assets. Then switch run times to off-peak hours when electrical rates are lower. Audit your current usage in low demand areas to see if you can cut waste completely by installing motion sensitive lighting or switching to automated HVAC scheduling. All this new energy efficiency will also help raise your power factor rating, and your provider may offer a discount if your rating is above average for your area.
Useful power is the energy that actually does work. Demand power is the amount of electricity delivered to your facility. Your power factor is the ratio of your useful power to your demand power. The higher the better.
Increased Equipment Lifespans
Advanced equipment and technologies within many sectors (e.g., healthcare and IT) are becoming more sensitive to power fluctuations. Complex equipment also requires a consistent energy supply to function properly. Insufficient or inconsistent power supplies significantly impact their lifespan. Therefore, electrical supply monitoring is critical to avoiding damaged assets. Modern EPMS software warn staff to power quality issues like power sags, swells and harmonics before failure or harm occurs.
Reduced Carbon Emissions
In addition to cost savings, optimising your energy efficiency also lowers your carbon footprint and makes your more competitive. Properties with hybrid-grids can use their EPMS to identify the best times to switch to cheaper, greener energy supplies like solar, wind or battery. And because energy management systems benchmark your consumption, reporting on energy reduction and savings against targets is more accurate. That makes your efforts more sustainable over time.
Power Event Tracking
When the power does go out, it can sometimes be difficult or impossible to determine the cause. You may only have a few seconds to troubleshoot the issue before it happens. And your electrical provider may try and place the blame on your property. Flying blind to power events leaves you vulnerable to hefty fines for blown transformers and labor costs. But the accuracy of an EPMS can track your system down to the individually connected device. It records every power event with your grid, so you’ll have documented proof when the power company shows up if you’re to blame.
Expanding Your Energy Grid
Not only does an EPMS warn you if you’re exceeding the capacity of your circuits, it forecasts if a new renovation or piece of equipment will push you past safe limits. Historical data of your electric usage and top-down views of current load capacities help managers and engineers easily determine their wattage budget for any area. This can be critical when updating to more efficient equipment or more robust units with larger amperage ratings.
Conclusion
As the old saying goes, “If you can’t measure it, you can’t manage it.” But too often managers and owners still see power as a fixed expense, something measured primarily by the end-of-month cost. But today’s wireless technology and the IoT have transformed energy consumption and distribution into a flexible outlay that can (and should) be adjusted to meet an ever-changing supply and demand. Smart buildings run on smart power, and smart FMs who get ahead of the game by adopting energy management systems can increase the value of their portfolios for owners and tenants.
