Independent advisory for
NYC building owners.

DE Energy Consultants advises building owners on Local Law 97 compliance, decarbonization planning, and energy capital projects. We work on the owner's side of each engagement and are compensated only by our clients.

An owner's advisor on energy and compliance.

LL97 compliance usually involves several parties. Energy auditors document how a building performs, design professionals prepare the engineering, contractors install the work, and equipment suppliers provide the systems. Each has a defined role. Owners are also well served by an advisor whose role is to represent their interests across all of them.

That is the role we fill. We do not accept referral fees or commissions from contractors or equipment suppliers, and our compensation comes from the owners we advise.

Our recommendations follow the building's data. In some cases that supports a capital project. In others it supports phasing work over several years, aligning upgrades with planned equipment replacement, or starting with operational changes.

01

Decisions based on building data

We work from the building's utility bills, benchmarking history, and compliance filings, so that capital decisions reflect how the building operates.

02

Prioritizing by cost and impact

We rank measures by emissions reduction per dollar and consider how each one fits the building's existing capital plan and replacement schedule.

03

Planning across compliance periods

LL97 limits tighten in 2030 and again in 2035. We evaluate options against future periods as well as the current one, so that near-term work supports later compliance.

Building systems, regulation,
and project delivery.

Our work draws on experience in building energy systems, construction and capital project management, and NYC energy regulation.

Building Energy Systems

Heating and cooling systems, fuel switching, heat pump electrification, steam and hot water conversions, and building envelope performance, reviewed in the context of how the building is operated.

NYC Regulatory Environment

LL97, LL84, LL87, and LL88, along with NYSERDA and Con Edison incentive programs. We follow rule changes and filing requirements as they develop.

Capital Project Delivery

Scope development, contractor selection, construction oversight, and closeout, managed on the owner's behalf.

How We Work

Working alongside your other advisors.

Energy Auditors

LL87 audits identify how a building uses energy and where savings are available. We use audit findings as a starting point for a compliance plan and help sequence and implement the recommended measures.

Engineers and Contractors

Licensed design professionals prepare the engineering and contractors perform the installation. We represent the owner through that process by developing scope, reviewing bids, tracking schedule and budget, and confirming the completed work matches the contract documents.

Filing and Compliance Professionals

Where a building already has a filing agent or LL97 consultant, we coordinate with them so that compliance filings and capital planning rely on the same data and assumptions.

Property and Asset Managers

Few ownership teams have staff dedicated to LL97. We work as an extension of the existing team, providing specialized support without the cost of a full-time position.

Work With Us

Talk with us about your building.

Initial consultations are free. We will review where the building stands and outline the options available.

Schedule a Free Consultation → Use the LL97 Calculator