EES Blog

Utilizing air-side economizers during the cooler seasons can significantly reduce chilled water costs by leveraging outside air for cooling, offering substantial energy savings for businesses in temperate climates.

As we slip into fall, our thoughts turn to pumpkin spice.  Our air-side economizers – a duct and damper arrangement with a control system that enables the heating, ventilation, and air conditioning (HVAC) system – however, think about saving chilled water costs.  If we can lower load for the chiller, we can save money due to less energy being used. If the outside air is cool and dry enough, we can open an economizer and let nature do the job instead of using the chilled water coil.  It also usually has the benefit of changing the air more quickly than during the winter or summer seasons.  

Less chilled water pumping also lowers the energy needed to move the water around. We control the differential pressure of the chilled water by slowing down the chilled water pump via a variable frequency drive (VFD), and less load raises the differential pressure.  The tower also must do less work because there is less heat rejected out to it, so the fans run slower.  This saves tower make-up water as well: less evaporation, less water needed.

On September 11, 2001, EES lost a good client. We had the control system on the central chilled water plant at the World Trade Center. EES was scheduled for service at the site that day, but was postponed due to a hang-up on the purchase order, fortunately our visit was re-scheduled, to never. We knew many of the operators, some of whom stayed at their posts when the building went down.

How Optimizing Variable Refrigerant Flow Cooling Systems can Save Building Managers on Energy Usage

EES is very active with several Variable Refrigerant Flow, VRF, cooling systems’ manufacturers. In this article the condenser-water optimization on Samsung equipment will be discussed.

The latest on Vice President of Production Pete Moskal’s travels to the Turtle Rethink Expo

Learn more about EES’ past and future of helping reduce energy usage while improving efficiency for their clients

Engineered Energy Solutions shares details of the recent design and installation of energy efficient HVAC systems for newly-completed oceanfront residential and dining destination Pier Village, located in Long Branch, close to New York City on New Jersey’s Atlantic Coast.

Amid pandemic travel restrictions, EES partners with regional system integrators to achieve energy savings for clients across the U.S.

We recently challenged ourselves to quantify how many tons of carbon dioxide EES has prevented from being released into the atmosphere on our clients’ behalf, thus lowering their carbon footprints. Our conservative estimate is that our projects are saving more than 3 ½ tons of carbon dioxide (CO₂) every hour! We have optimized and automated over 100,000 tons of refrigeration since we started in April 1976.

Blog post by Bruce Marson, President, Engineered Energy Solutions

I guess the old saying “what goes around, comes around” if you wait long enough, is true in the controls industry as well. We had for many years, a large telecommunications client for whom we had installed PLC-based building controls in the late eighties. The client was forward thinking in regards to the energy consumed by their 2.2 million square-foot R&D facility. Having the innovative corporate culture that fueled hundreds of patents per year, they recognized the rewards we were offering with our new (at the time) PLC-based energy control system. Back in the day, no one was applying PLCs to central utility plants and major air handling systems like we were and after a review of the numbers, they took a chance. After completing the installation, we saved them $500,000 per year with a return on investment in under two years.  When the project ultimately lead to the client winning an award from the State of New Jersey for energy management, we had a client for life.