How much energy am I saving or wasting? How much more can I save on energy costs? Why is the AC kicking on at 3 am every weekday and how can I fix that? If you are a building owner or operator these are questions that no doubt plague you.

In our blog about energy modeling, we explore the predictive nature of modeling and the importance of good design in HVAC systems. Here, we will talk about the importance of monitoring the ongoing use of those systems. By utilizing energy monitoring equipment, you can see in real-time how those systems are performing, and get clear answers to these questions that may keep you up at night...or at least working overtime.

What is energy monitoring

Energy monitoring tracks and records consumption patterns in building(s) via an energy monitoring system (EMS). An energy monitoring system is equipment and software that integrates with your building’s utility provider(s), gathers consumption data, analyzes it, and then provides useful information directly to your desktop, laptop, and mobile devices. Information such as real-time alerts, how much energy the building is using, and how it is used throughout the day. Energy monitoring delivers enhanced control and efficiency, meter by meter.

Connecting energy monitoring in buildings

Connecting an EMS is fairly straight forward. The data is gathered by connecting the energy monitoring equipment to meters or sub-meters on-site for each resource you chose to monitor (electricity, water, gas, solar, energy storage). The best systems offer flexibility to connect and are hardware agnostic, assuring ease of adoption with what you already have in place, and adaptation to future changes and upgrades you may make.

There is a wide variety of energy monitoring systems on the market. Green EconoME works with Energy360 by Intech Energy, a cloud-based energy monitoring system that uses next-generation sensors and wireless building controls, providing real-time monitoring and remote equipment management. The advanced technology of the Energy360 system makes it easy to install and less invasive as earlier equipment. The advantage of being cloud-based is not only mobility, but advanced data analytics. The ability to capture and store, read, and analyze your big data empowers you to make changes toward significant savings. 

So now that you have your EMS equipment connected, the fun can begin! As the end-user, you have a host of robust functions and controls at your fingertips. EMS remote access dashboards deliver analytics that can be viewed as granularly or high level as desired. Three key features include:

Real-Time Monitoring - Receive notifications to uncover problems and anomalies. Visualize your consumption with detailed comparisons, graphs, charts, and maps.

Control Strategies & Automation - Set up and control your equipment remotely. Manage whole building and zone/meter schedules to optimize occupant comfort and demand.

Energy Forecasting - Customize reports to identify energy savings, building performance, and forecast future efficiency or RCx projects.

Why monitoring your energy use is important

There are a multitude of positive reasons to monitor the energy and/or water used in your building. Let me put it this way, it is way more enjoyable to view your utility bills and be surprised by how much you are saving, versus how much you are spending. Think of all the ways you benefit from identifying a problem early, rather than after you have overused and overspent. Below is a list of the benefits we can think of. I bet you will find even more when you consider your specific needs and application. If you do, please call us!

Lower Energy/Water Costs - Save on HVAC, lighting, water use, and expense. This is usually the heart of any efficiency strategy. Energy monitoring allows you to see actual efficacy and identify areas of improvement, thereby informing further strategies.

Improve Tenant Comfort - Fix heating and cooling complaints. This will not only lead to happier, healthier occupants but also happier, healthier operators. 

Increase Facility Value - Higher Net Operating Income. “Smart buildings” show on average, 13% savings. When operating costs are several hundred thousand dollars, this is a significant amount back into your NOI.  

Reduce Equipment Maintenance - Optimize operation and life cycle of systems. The effects of this can go beyond general maintenance to identifying the cause of a serious malfunction, mitigating emergency situations.

Peak kW Management - Lower utility charges by managing and responding to peak kW demand. Peak shaving is a proven and growing strategy to reduce TOU charges and avoid overuse during peak hours. 

Energy monitoring in action

Green EconoME utilizes energy monitoring as a powerful tool in identifying and measuring client energy and water use. We have implemented our solution into a variety of multi-faceted retrofit projects and each has realized significant savings throughout. Combining energy monitoring with a suite of efficiency measures, Warner View Center, which was an LABBC 2020 Innovation Awards, Energy Efficiency Project of the Year Nominee, reduced electricity and gas usage by over 50%, translating into savings of nearly $1 per SqFt., and projected savings of over $100,000 annually in operating expenses. Although that is comprehensive of multiple efficiency measures, Energy360 EMS is the nerve center and is being used by Green EconoME and the building management to this day, to track and monitor use. It acts as insurance and preserves the value of the investments. 

New efficiency products and technologies emerge at a rapid pace. Energy monitoring has been used widely  and continues to stand the test of time. Now more than ever, efficiency and sustainability planning are critical. Demand is going up due to the effects of the COVID-19 pandemic, in many cases taking reduction efforts in the wrong direction. You can listen to an enlightening conversation with our CEO, Marika Erdely, and our partners at Intech Energy about how you can use energy monitoring as an integral part of your efficiency plan and operations. Please contact us to learn more, schedule a demo, or to receive a free quote. 

If you could have a crystal ball to see into the future use, efficiency, and valuation of your property and investments, would you use it? It certainly would mitigate much of the risk and uncertainty in decision making. Well, you do have a crystal ball of sorts - in building energy modeling, or BEM. When used early in new construction or existing building retrofit design, energy modeling is an effective, low-cost way of predicting the energy consumption and performance of your building’s systems. 

What is Building Energy Modeling (BEM)?

Used largely by mechanical engineers and architects, building energy modeling is a physics-based, multipurpose software used to simulate a building and its energy use. 

Without going into the nitty-gritty, an energy modeling program uses inputs about the building, like geometry, construction materials, and system configurations. Then it takes descriptions of the building’s use and operations (actual and/or estimated) and combines input data with information about local weather and other related metrics. From here, physics equations can be used to calculate such things as thermal loads (system design), system responses (to said loads), resulting energy use, and cost.

Why is energy modeling important?

How do all these calculations translate into decision making? In essence, the value of energy based models is the visual representation of accurate, predictive data. Aka, you can play around virtually with different types of HVAC systems and see which one will work best for your specific building. When looking into each system you can discover how long it will last (life-cycle), and compare your spending and saving (cost-savings analysis). Think of being fitted for running shoes. A specialist can identify the intricacies of your foot and observe pressure points and weight distribution. Then they can recommend the best shoe based on their knowledge and your budget. What you get for this service is the proper fit for your stride, less wear to the shoe, and injury prevention, keeping you running longer.

Here are three main components BEM addresses:

Design - HVAC systems come in a complex array of sizes and components. BEM helps engineers understand and identify the proper system scale to meet the thermal load of the building. Additionally, modeling can help design control strategies. In other words, make sure the shoe fits. These key components all lead to the efficiency of the system and meet the needs of operating the building.

Cost - BEM helps decision-makers discern between up-front construction costs and operational energy costs, thereby reducing both, ideally. Factoring data and available incentives, modeling programs can also provide clear payback periods and net values. 

Codes and Standards - Collective analysis of energy models across building stock, can help utilities, municipalities and large scale organizations like the US Department of Energy develop energy efficiency programs and building codes.

The role of BEM in energy consumption and utility bills

At the property level, as outlined above, when BEM is used in the design phase of a construction or retrofit project you can implement not only an efficiently designed HVAC system but a robust, state of the art system. Next-gen modeling is helping building operations link multiple platforms for precise control and real-time consumption data, alerts, etc., leaving few surprises as far as their building’s usage. The effect is lower, predictable utility bills. Knowing what to expect out of your monthly and annual OpEx has a positive impact on annual budgeting. 

Bigger picture, energy based models are used in code compliance, green certification, and financial incentives. Additionally, the data collected from these models help inform large scale energy efficiency programs and standards. The spirit of these codes and standards is to improve the performance and reduce consumption of building stock across utility service areas, and across the country. 

Where the rubber hits the road

The US DOE Building Technologies Office (BTO), is leading the charge state-side, in the development and implementation of emerging technologies in building energy modeling. BEM experts are well-versed in these programs, along with the full suite of available software. None of it matters; however if they are not put to use as part of the design process. A 2017 USGBC article cites that approximately 20% of new construction projects are using BEM. The crystal ball shows - building energy modeling is a powerful tool toward efficiency and savings. It also shows that when used, emission reductions across the country are headed in the right direction. So lace up those running shoes and get to work. Call Green EconoME to inquire about our engineering and energy modeling services.

If you own and/or operate an older building, existing inefficient equipment or a lack of new-age, sustainable solutions may be unnecessarily driving up operational costs. Here are the 6 ways to make sure you’re saving money and not throwing it out the window.

1. Get Rid Of Those Fluorescent Lights

Replace all fluorescent lights with LEDs, including all parking lot lighting. Installing LEDssave up to 20% – 30% on annual operating costs.

Lighting Retrofit Case Study

2. Install Solar Already

In addition to providing a long term energy cost reduction, you’ll also utilize the available tax benefits:

  • 26% Federal Business Energy ITC (dropping to 22% in 2021 and 10% thereafter),
  • The State of CA (MACRS) accelerated depreciation, and
  • Recently added, the 100% bonus Federal tax depreciation allows eligible entities to deduct the entire allowable tax basis of the system in the first year of operation.

Taking advantage of these tax incentives reduce the owner’s tax liability and will significantly offset the cost of a Solar PV system.  These incentives can also be applied to a roof replacement if combined into one project.

Solar PVs Case Study

3. Stop Cooling An Empty Room

Replace pneumatic thermostats with digital for higher-level control and visibility. Digital thermostats allow building owners to reduce peak demand by creating schedules around when spaces are unoccupied (holidays, non-peak hours, etc.).

Thermostat Retrofit Case Study

4. Be Smarter Than The Building

An energy management system (EMS) provides real-time monitoring, energy analytics, and wireless building control. The ability to measure a building’s energy usage on a granular level allows for better management of energy consumption and “peak demand.” An EMS provides extensive energy data history, peak load notifications, detailed usage reports, and more.

Energy Management System Case Study

5. Shield Your Internal Environment

Solar window film is applied to the interior of a window in order to control solar heat absorption. The film rejects up to 79% of solar energy and 99% of harmful UV rays.  Further, the film helps reduce glare, adding to a more comfortable office environment.

Solar Window Films Case Study

6. Protect Your Expensive Equipment

EvaporCool is a dual patented technology that pre-cools outdoor air prior to flowing through the condenser coils of an HVAC system. The pre-cooled air helps reduce the amount of work that the compressor must do to cool the air flowing inside a building. By minimizing the amount of work the compressor must do, the EvaporCool system prolongs the life of HVAC units, reduces energy usage up to 30%, and saves a significant amount in energy-related costs.

Evaporcool Case Study

Before getting started with any of these cost-saving options, we suggest having your building Benchmarked.
If you’d like to learn more about any of these cost-saving options, reach out to us at [email protected] or (818) 681-5750.