Articles and Publications

Minimizing Excess Outside Air

Minimizing Excess Outside Air

We have worked on two large NYC energy conservation efforts: managing NYC’s 1980’s Energy Conservation Capital program, the largest of its kind, and our more recent effort to improve the energy performance of NYC’s existing office buildings.

Improving Campus Economics and Aesthetics with a Central Chilled Water Plant

Improving Campus Economics and Aesthetics with a Central Chilled Water Plant

A central cooling plant on a college campus has several quantifiable advantages over decentralized equipment. These include improved efficiency, ability to cycle easily between alternate energy sources, reduced maintenance burden for staff, and long-term capital cost reduction. Often overlooked as a benefit, however, is the improvement to campus aesthetics. This article explores a range of benefits realized by Vassar College after building a central cooling plant to replace distributed cooling equipment.

Renovation and Rehabilitation of Grand Central Terminal

Renovation and Rehabilitation of Grand Central Terminal

Built during the golden age of train station construction, Grand Central officially opened in Febru­ary 1913. It is the visible, above-ground part of a mostly underground complex of tracks, platforms and railroad facilities that stretches on 48 acres from 42nd Street to 57th Street and, at its widest part, from Lexington Avenue to Madison Avenue.

Modernizing Existing Chiller Plants

Modernizing Existing Chiller Plants

There are many good reasons to replace aging chiller plants in the nineteen-nineties. Unfortunately, very few installations were straight-forward in execution because the designers of the origi­nal structures rarely considered the necessity of replacing these machines in the future.