Energy Efficient Project

A facility can benefit from implementing measures to improve energy efficiency. In some cases, the energy efficiency project will cover only one measure e.g. retrofit of a chiller by installing a new chiller. In other cases, it will be a whole of the chiller plant with new chillers, variable speed drive pumps and efficient cooling towers. It can also be a comprehensive energy efficiency project where insulation of the building, improvement of the air handling system, chiller plant retrofit, lighting system retrofit, etc. are combined into a larger project.

A facility will often have some low hanging fruits, being measures that have no or very low investment costs, but will provide energy savings. Other measures require some investment to buy and install new equipment, but will provide savings in a magnitude that can repay the investment within a short time frame. Finally, some measures are of a higher cost, but will still be able to repay themselves over their lifetime.

Typical for no and low cost measures is that they require some management or behavioral changes e.g. ensuring that equipment is turned off when not in use. These changes are almost free of cost, but depend heavily on human interaction and continued focus to keep the energy efficient practices in place. This means that the energy savings may be challenged over a short period as people may revert to the old practices

Installation of energy efficient equipment where old inefficient technology is replaced by new energy efficient technology is a safer way of up-keeping continuous energy savings. However, these will involve an investment cost, which require budget allocations and some sort of proof that the new technology will be able to provide the expected savings. Often these two factors; need for budget and proof of savings, are the barriers to implementing the medium and high cost energy efficiency projects.