CASE STUDIES

By combining needed HVAC RTU renewal with lighting upgrades, we achieved a 3.7 year project payback period. Our deep engineering knowledge and field experience allowed us to evaluate existing conditions using a systems approach and prepare a fully vetted path to reduce connected load and energy use, as well as renew critical aged equipment.

Our deep systems and engineering field experience allowed us to independently evaluate existing conditions and prepare a fully vetted path to reduce connected load, energy use, and renew critical aged equipment. We were able to provide accurate kW load reduction calculations, packaged with executable equipment upgrade and replacement recommendations in a multi-phased project covering refrigeration, HVAC, and lighting systems. Our project execution resulted in multiple successful upgrades with significant aggregate reductions in connected load kW, energy use and maintenance expense with a combined ROI of under 3 years.

Our field due diligence, engineering and project teams were able to recognize value and untapped potential in the core MEP/R existing systems. We quantified the opportunity, designed and delivered upgraded controls and strategies to improve system operating efficiencies. We provided a fully turn-key installed project and commissioned the systems following the upgrades to ensure proper, efficient operation.

e²s was engaged to commission all mechanical, refrigeration, plumbing, BMS, and lighting systems for a new grocery store construction project. Our knowledge depth and team expertise successfully completed the project with swift contractor remedial actions on open items. We were also able to dive into the BMS control sequences and adjust programming to better match the client staff operational needs and use timing, creating 4% first year energy cost savings above the original design intent.

We reviewed the site and test equipment to provide scope of work and direction for upgrades at the store. Once all the managed upgrades had been completed, we conducted a retro-commissioning project that included all existing mechanical, refrigeration, plumbing, and electrical equipment.

e²s was a key contributor to a 56,000 sq ft flagship LEED Platinum new construction building. The project included natural gas fired dual effect absorption chillers producing all building cooling & heating water, dedicated on site power generation for resiliency and combined heat and power utilization, solar car park canopies and more. Our team was instrumental in advising feasibility during concept & design development, leveraging our previous CHP design experience with our in-house engineers. We provided forward confidence and oversight to all project stakeholders to facilitate successful construction and systems start up. Our team commissioned all systems and performed all air and hydronic test and balance to ensure correct and efficient system operations.

e²s was engaged in Energy Advisory Services for a California grocery store deep energy retrofit project striving to push the envelope towards net zero energy for the building. The project was designed with 100% electric equipment to eliminate fossil fuel burn, and HVAC & Refrigeration systems were selected to share both high and low side heat transfers. e²s was critical in assessing the schematic design phase thermal heat balance, during which we identified strong gaps, and were able to collaboratively navigate core system redesign at the early concept stage, keeping the project on schedule and budget.  Our Energy Advisory Services involvement ensured core store system needs were met while achieving high levels of efficiency.