Encycle Blog

Real World Energy Efficiency Savings: Theaters

Posted by Luis Bedolla on Nov 16, 2017 11:16:00 AM

Harnessing New Efficiencies in HVAC Usage: A Case Study

 

When it comes to building energy efficiency, not all buildings are created equal.  In fact, there are dramatic differences from building to building that render a “once size fits all” approach to building energy efficiency considerably less than optimally effective.  This is especially true when it comes to HVAC energy efficiency in C&I buildings because these buildings use more than half of the electricity consumed in developed countries like the U.S. and Canada, and HVAC units account for a considerable percentage of this energy. 

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Topics: HVAC efficiency, Building automation, building energy management, building management system, building energy efficiency

Dear Advisor: Advice on Your Most Pressing HVAC Efficiency Questions

Posted by Robert Chiste on Sep 7, 2017 9:01:00 AM

Dear Advisor: I just joined an HVAC engineering design firm, and my boss told me that I only have one week to produce a new HVAC design for our key customer’s flagship building. He also said the design needs to meet the highest attainable sustainability goals because it will be a shining, showcase example of the best-of-the-best for the entire organization.  Help!!!  I’m petrified.

Dear Petrified:  Stay calm and never give up, my friend. Just study what makes a championship basketball team — and follow the same rules.

Dear Advisor: Huh?  

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Topics: Biomimicry, HVAC Control, building energy management, building management system, building energy efficiency

Lessons Learned: HVAC Readiness: Can You Handle the Heat?

Posted by Robert Palmer on Aug 23, 2017 8:10:00 AM

One of the key concerns of building facility managers is whether their HVAC systems can maintain building comfort on even the warmest days. Often, the path of least resistance is the one they are most likely to tread - embracing the all-too-common philosophy of “If it ain’t broke, don’t fix it.” For HVAC systems in general, however, and rooftop units (RTUs) in particular, this may be very bad advice.

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Topics: HVAC efficiency, HVAC Control, building energy management, HVAC maintenance

The Zen of Synergy: Making Smart Thermostats Smarter

Posted by Ginger Juhl on Jun 15, 2017 2:20:00 PM

Have you ever had a sense that two things just naturally belong together?  Or that when they’re apart, something is missing?  For me, peanut butter and jelly are at the top of this list.  And then there’s red wine and chocolate, macaroni and cheese, fish and chips… I’m sensing from my examples that perhaps I should not have skipped lunch today.

But there are plenty of non-edible examples too: yin and yang, bow and arrow, needle and thread….  You get the picture: things that naturally click. 

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Topics: Energy Efficiency, HVAC efficiency, HVAC Control, building energy management, energy savings, Smart thermostat, energy conservation

Building a Baseline for Measuring HVAC Energy Savings

Posted by Robert Palmer on Jun 8, 2017 9:16:00 AM

 

Maybe you’ve been noticing with alarm the increase in your company’s electric utility bills over the past months, and perhaps you’re also becoming more carbon footprint conscious. Maybe you’re even the plant facilities engineer and have been told that you simply must do something to reduce utility costs. So what does a smart, responsible person do? 

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Topics: Energy Efficiency, HVAC efficiency, Building automation, building energy management, energy savings

Staggered Starts for RTUs Save Money

Posted by Robert Palmer on May 25, 2017 8:30:00 AM

In commercial and industrial facilities, rooftop units (RTUs) are usually turned off or greatly curtailed during unoccupied periods, for example, overnight and/or on weekends. Unfortunately, too little attention is given to the schedule RTUs are programmed for restart. If the desired setpoint is reached too early, energy is wasted, while reaching it too late adversely affects occupant comfort. Optimizing RTU start times means programming each RTU so as to reach its desired space temperature setpoint at the intended time. However, many facility managers fail to appreciate the energy and cost savings benefits of optimizing their HVAC startup schedule and simply program RTU start times to ensure they start early enough to guarantee the setpoints are reached before start of business.

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Topics: Energy Efficiency, HVAC efficiency, HVAC Control, Building automation, building energy management, Rooftop Units, RTUs

Enabling Intelligent HVAC Control by Making Rooftop Units Work Together

Posted by Ginger Juhl on May 17, 2017 8:25:00 AM

INTRODUCTION:

Rooftop HVAC units are almost always one of the biggest energy consuming devices for any commercial and industrial (C&I) buildings.  In fact, C&I buildings consume more than a third of the energy used in first-world countries, and HVAC units account for almost half of this energy. They are also one of the largest contributors to greenhouse gas emissions.

The fact is that rooftop units – or RTUs – hold enormous potential for dramatic reductions in both energy costs and carbon emissions. This potential has gone largely unrealized, however, because RTUs have long been one of the least intelligent of a building’s energy-consuming devices.  Yes, there are smart thermostats and building management systems that definitely help, but only to a point because even with these energy efficiency tools in place, RTUs function in isolation, cycling on and off with no knowledge of how and when other units are operating.  As a result, RTUs have remained largely untapped as an opportunity for smarter energy management and the accompanying energy savings. 


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Topics: Biomimicry, HVAC efficiency, HVAC Control, building energy management, Rooftop Units, RTUs