We help project teams across all delivery methods define performance goals and shape early mechanical system concepts — reflecting the needs of occupants, owners, designers, and builders alike. Our role isn't just analysis. We provide clear, constructible Basis-of-Design guidance that keeps good ideas viable all the way to occupancy.

What we do

Three areas of focus.

Early-Stage Energy & Comfort Modeling
  • Rapid design comparison and feedback
  • Envelope + systems integration and tradeoffs
  • Thermal comfort, zoning, and layout feedback
  • Daylight and glare optimization for usability
Code & Incentive Alignment
  • Title 24 (CA), IECC, ASHRAE 90.1, and LEED
  • Performance pathway strategy
  • Utility incentive navigation and documentation
  • Custom modeling support for stretch goals
Mechanical System Concept & Basis of Design
  • Evaluation of DOAS, VRF, hydronic, and heat pump systems
  • Sizing logic and system configuration recommendations
  • Controls strategy and sequencing concepts
  • Integration guidance with envelope and daylighting
  • High-level BOD documentation for engineers and contractors
DesignBuilder solar path and sun position analysis
Boulder Commons energy model — SketchUp
Solar arc analysis over building massing
TAS thermal energy model — office building with shading screen
SketchUp façade shading screen study
How we work

Integrated with your design team.

01
Programming + System Concept

We engage early — defining performance goals, evaluating system types, and aligning mechanical strategy with architectural intent before details lock in.

02
Envelope + Passive Strategy

We model envelope options, shading, and daylighting to find the tradeoffs that reduce mechanical loads without adding cost or complexity.

03
Basis of Design + MEP Coordination

We document system logic, sizing criteria, and controls strategy in a format engineers and contractors can build from — no guesswork in the field.

04
Code Compliance + Incentive Alignment

We navigate Title 24, ASHRAE 90.1, LEED, and utility programs — identifying the compliance path and incentive stack that best fits the project.

Solar arc analysis — annual sun path over building massing
Integrated Daylight & Façade Analysis

We combine energy and daylight modeling to optimize facades, shading strategies, and lighting controls — aligning performance goals with architectural intent. Our analysis supports LEED daylight credits, visual comfort targets, and daylight harvesting strategies.

Our edge

Why teams work with us.

We speak integrated design.

We understand how architecture, envelope, and mechanical systems interact — not just how they're modeled. Our analysis informs decisions, not just documents them.

We support the full timeline.

From early concept and Basis of Design through coordination and commissioning, we deliver insight that sticks — and recommendations that survive value engineering.

We balance performance with feasibility.

We know when a design idea is brilliant — and when it's too brittle for field conditions. Our sprint-based process brings agility and foresight to avoid late-stage rework.

We connect to policy and programs.

Our code development and research work means we know which technologies California's next cycle is moving toward — and which utility programs are about to incentivize what.

Ready to talk?

Working on a project that needs
early-design performance guidance?

We engage at concept, schematic, or design development — wherever the decisions are still being made.

Get in touch info@a2efficiency.com