Saving Energy in Existing Buildings

Retrocommissioning
Building Envelope Upgrades

Retrocommissioning Leads To Huge Energy Saving Opportunities

Saving Energy On Existing Buildings
The purpose of the retrocommissioning process is to identify energy saving opportunities in a building or facility through a systematic evaluation of the HVAC, electrical, lighting, plumbing, building envelope and operational procedure. The process includes audits, testing and analysis leading to “findings.”

We present these findings to the owner for considerations. Some of the findings could be no-and low cost, such as resetting temperature set points during unoccupied periods. Some, however, could list capital investment projects that will warrant further studies. The building can also be scanned with infrared imaging to identify higher than normal energy loss through the building envelope (walls, glass, doors, roof, etc.) These studies with the economic necessities, energy cost savings as well as utilities rebate, state and federal government tax incentives or grants.

To learn more about how to save on existing electric bills, read the Save On Electric Bills section.

If a building owner is pursuing Energy Star rating or US Green Building Council’s LEED EB certificate for any existing building, we will help you with the certification process.

Check www.dsireusa.org for utilities provider offers best practices in commissioning existing buildings in the BCA website www.bcxa.org or NEBB website www.nebb.org National Conference on Building Commissioning www.peci.org/ncbc

Existing Building Envelope Upgrades Create Energy Efficiency

Energy Savings

Most existing commercial and institutional buildings can be upgraded to a much more energy (consumption) efficient structure by implementing any of the following strategies:

  • Infrared Testing of Building Envelopes
  • Solar Reflective Window Films Project Specifications
  • Green Roofs

Infrared Testing of Building Envelopes

Most building envelopes transfer energy via the convection process during the winter months from the indoor to the outdoors. How? Cracks, new and old, some from when the building was constructed, leak warm air to the cold outdoors. In order to prevent this loss of energy one has to first discover where the leaks occur. Aquarius Consulting Group offers the infrared discovery services to find these cracks and prepare documentation to allow experienced contractors to perform the required corrective work.

Solar Reflective Window Films Project Specifications

Most glazed areas (such as windows) have a summer solar heat gain that affects the running time of air conditioning systems.  By covering/adding a thin reflective film, which reflects solar rays, the air conditioning system will work fewer hours and will reduce energy costs.

Green Roofs

Buildings with a large area of roof surface can be upgraded to reduce summer heat transfer load to the top floor. By installing green plants, or water spray, and/or solar panels that cooling load can be reduced, making the air conditioning system run fewer hours, thus saving electrical energy.