Lilker Energy Solutions

Our wholly owned subsidiary, Lilker Energy Solutions, specializes in building commissioning, energy audits, retrocommissioning, energy modeling, and LEED® consultation services. Design expertise is integrated with state-of-the art energy conservation and sustainability practices to enhance resource efficiency at every step of the process for new and existing buildings.

Energy Modeling

  • LEED energy optimization credits
  • Building life cycle energy & cost analysis
  • Design for Energy Star compliance
  • Energy code compliance
  • Daylighting simulation
  • Measurement and verification (M&V)
  • System feasibility assessments

Local Ordinance Compliance


  • LEED fundamental and enhanced commissioning
  • NYC Energy Code compliance commissioning
  • DC Green Construction Code commissioning
  • IgCC Commissioning
  • Retrocommissioning
  • Monitoring-based commissioning
  • HVAC design review and system troubleshooting

LEED® and Sustainability Consultation

  • New construction and existing building operation and maintenance
  • Feasibility analysis
  • LEED charrette facilitation
  • Comprehensive LEED program administration
  • Credit documentation and review
  • Credit calculations and analysis
  • Sustainability assessments

Energy Auditing

  • Fundamental, comprehensive, and investment grade audits (ASHRAE Levels I, II, III)
  • Real time energy monitoring and continuous energy auditing
  • Residential energy audits (single-and multi-family)
  • Energy Star benchmarking and certifications
  • Renewable energy evaluation
  • Greenhouse gas inventory and reduction audits
  • Energy efficiency awareness and training presentations

Lilker LES is a NYSERDA-approved FlexTech Consultant and a registered DC PACE clean energy contractor.


Alger Associates

Alger Associates

7 Hanover / 100 Pearl St

7 Hanover / 100 Pearl

100 Vandam

100 Vandam