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Donnelly Sustainable Energy Services (Donnelly SES) offers maintenance, construction, consultation and energy sourcing services that help our clients realize green solutions that deliver long-term cost efficiencies.
A Wealth of Expertise Donnelly SES brings a wealth of knowledge and expertise to provide our environmentally conscious clients with expert advice and unrivaled energy consulting. We are backed by a proven track record of involvement with many of New York City’s most significant LEED-certified projects to date. Our services include:
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