Advancing performance through science and data intelligence

We use advanced analytics and real-world experience to help design teams, owners, and developers build smarter by saving energy, costs, while meeting the highest performance standards.

  • Example of Perpetuum process for energy analysis
  • A smiling young man with crossed arms, wearing a plaid shirt and white t-shirt, poses against a dark background.
  • A smiling young man with crossed arms, wearing a plaid shirt and white t-shirt, poses against a dark background.

About

We are an energy and building science consulting practice rooted in the belief that buildings should be smarter, more resilient, and aligned with a regenerative future. We turn vision into performance, and performance into a regenerative future. We bridge architecture, engineering, and building ownership to deliver data-driven solutions that benefit people, the planet, and the bottom line.

We are an energy and building science consulting practice rooted in the belief that buildings should be smarter, more resilient, and aligned with a regenerative future. We turn vision into performance, and performance into a regenerative future. We bridge architecture, engineering, and building ownership to deliver data-driven solutions that benefit people, the planet, and the bottom line.

We are an energy and building science consulting practice rooted in the belief that buildings should be smarter, more resilient, and aligned with a regenerative future. We turn vision into performance, and performance into a regenerative future. We bridge architecture, engineering, and building ownership to deliver data-driven solutions that benefit people, the planet, and the bottom line.

Your guide for every stage of building performance.

From early design decisions to post-occupancy verification, we bring building science expertise to every phase. If the challenge relates to building performance, we have a way to address it.

Advanced Energy Analytics

Advanced Energy Analytics

Dynamic simulations/analyses that inform design-decisions, verify compliance, and unlock operational savings.

What's included
Concept Energy Engineering

Early-stage simulations evaluating massing, orientation, and system options before design is locked, maximizing impact at minimum cost.

Parametric Modeling

Advanced simulations across hundreds of design variables to identify the optimal combinations that meet project goals.

Advanced Energy Analysis

Whole‑building energy modeling using dynamic simulation software to provide design assistance for complex architectural and MEP systems, and to verify compliance with regulatory codes and incentive programs.

Thermal Comfort Studies

Thermal comfort modeling to evaluate occupant experience and inform HVAC design and envelope decisions.

Solar Access Analysis

Sun path and shading studies that quantify solar gain, inform PV placement, and evaluate neighboring building impacts.

Daylighting & Glare

Climate-based daylight modeling to optimize daylight quality while controlling glare.

Economic Analysis

Life cycle cost analysis helping owners and capital planners select systems with the best total cost of ownership.

Code Compliance Modeling

ASHRAE 90.1, IECC, MA Stretch Code compliance modeling and documentation for permits and utility rebate submissions.

Building Science Consulting

Building Science Consulting

Advanced heat and moisture analysis to design durable, high-performance envelopes that last.

What's included
Heat Transfer Analysis (THERM)

2D thermal bridging analysis of envelope details including windows, parapets, and slab edges, to identify and reduce thermal bridges.

Hygrothermal Analysis (WUFI)

Dynamic moisture modeling of wall, roof, and floor assemblies to identify condensation risks and ensure long-term durability.

Post Occupancy Studies

Measurement and verification confirming implemented strategies deliver promised savings, plus energy audits from walk-through to ASHRAE Level I, II, III.

Decarbonization & Certifications

Decarbonization & Certifications

Practical roadmaps to net zero and the certifications that prove you got there.

What's included
Decarbonization & Electrification Strategy

Campus and building-level carbon reduction roadmaps covering HVAC electrification, envelope upgrades, renewable energy, and net zero pathways.

LEED Consulting

Strategic credit selection, energy modeling, documentation, and submittal support for LEED BD+C, ID+C, O+M, and EBOM.

Passive House (PHIUS)

Passive House modeling and certification consulting including envelope optimization, mechanical system selection, and PHIUS+ documentation.

Net Zero Energy Consulting

Integrated design consulting and documentation aligning load reduction, efficient systems, and on-site generation.

Sustainability Consulting

Healthy materials evaluation, resiliency planning for climate events, and circularity strategies across design and operations.

Your guide for every stage of building performance.

From early design decisions to post-occupancy verification, we bring building science expertise to every phase. If the challenge relates to building performance, we have a way to address it.

Advanced Energy Analytics

Advanced Energy Analytics

Dynamic simulations/analyses that inform design-decisions, verify compliance, and unlock operational savings.

What's included
Concept Energy Engineering

Early-stage simulations evaluating massing, orientation, and system options before design is locked, maximizing impact at minimum cost.

Parametric Modeling

Advanced simulations across hundreds of design variables to identify the optimal combinations that meet project goals.

Advanced Energy Analysis

Whole‑building energy modeling using dynamic simulation software to provide design assistance for complex architectural and MEP systems, and to verify compliance with regulatory codes and incentive programs.

Thermal Comfort Studies

Thermal comfort modeling to evaluate occupant experience and inform HVAC design and envelope decisions.

Solar Access Analysis

Sun path and shading studies that quantify solar gain, inform PV placement, and evaluate neighboring building impacts.

Daylighting & Glare

Climate-based daylight modeling to optimize daylight quality while controlling glare.

Economic Analysis

Life cycle cost analysis helping owners and capital planners select systems with the best total cost of ownership.

Code Compliance Modeling

ASHRAE 90.1, IECC, MA Stretch Code compliance modeling and documentation for permits and utility rebate submissions.

Building Science Consulting

Building Science Consulting

Advanced heat and moisture analysis to design durable, high-performance envelopes that last.

What's included
Heat Transfer Analysis (THERM)

2D thermal bridging analysis of envelope details including windows, parapets, and slab edges, to identify and reduce thermal bridges.

Hygrothermal Analysis (WUFI)

Dynamic moisture modeling of wall, roof, and floor assemblies to identify condensation risks and ensure long-term durability.

Post Occupancy Studies

Measurement and verification confirming implemented strategies deliver promised savings, plus energy audits from walk-through to ASHRAE Level I, II, III.

Decarbonization & Certifications

Decarbonization & Certifications

Practical roadmaps to net zero and the certifications that prove you got there.

What's included
Decarbonization & Electrification Strategy

Campus and building-level carbon reduction roadmaps covering HVAC electrification, envelope upgrades, renewable energy, and net zero pathways.

LEED Consulting

Strategic credit selection, energy modeling, documentation, and submittal support for LEED BD+C, ID+C, O+M, and EBOM.

Passive House (PHIUS)

Passive House modeling and certification consulting including envelope optimization, mechanical system selection, and PHIUS+ documentation.

Net Zero Energy Consulting

Integrated design consulting and documentation aligning load reduction, efficient systems, and on-site generation.

Sustainability Consulting

Healthy materials evaluation, resiliency planning for climate events, and circularity strategies across design and operations.

Your guide for every stage of building performance.

From early design decisions to post-occupancy verification, we bring building science expertise to every phase. If the challenge relates to building performance, we have a way to address it.

Advanced Energy Analytics

Advanced Energy Analytics

Dynamic simulations/analyses that inform design-decisions, verify compliance, and unlock operational savings.

What's included
Concept Energy Engineering

Early-stage simulations evaluating massing, orientation, and system options before design is locked, maximizing impact at minimum cost.

Parametric Modeling

Advanced simulations across hundreds of design variables to identify the optimal combinations that meet project goals.

Advanced Energy Analysis

Whole‑building energy modeling using dynamic simulation software to provide design assistance for complex architectural and MEP systems, and to verify compliance with regulatory codes and incentive programs.

Thermal Comfort Studies

Thermal comfort modeling to evaluate occupant experience and inform HVAC design and envelope decisions.

Solar Access Analysis

Sun path and shading studies that quantify solar gain, inform PV placement, and evaluate neighboring building impacts.

Daylighting & Glare

Climate-based daylight modeling to optimize daylight quality while controlling glare.

Economic Analysis

Life cycle cost analysis helping owners and capital planners select systems with the best total cost of ownership.

Code Compliance Modeling

ASHRAE 90.1, IECC, MA Stretch Code compliance modeling and documentation for permits and utility rebate submissions.

Building Science Consulting

Building Science Consulting

Advanced heat and moisture analysis to design durable, high-performance envelopes that last.

What's included
Heat Transfer Analysis (THERM)

2D thermal bridging analysis of envelope details including windows, parapets, and slab edges, to identify and reduce thermal bridges.

Hygrothermal Analysis (WUFI)

Dynamic moisture modeling of wall, roof, and floor assemblies to identify condensation risks and ensure long-term durability.

Post Occupancy Studies

Measurement and verification confirming implemented strategies deliver promised savings, plus energy audits from walk-through to ASHRAE Level I, II, III.

Decarbonization & Certifications

Decarbonization & Certifications

Practical roadmaps to net zero and the certifications that prove you got there.

What's included
Decarbonization & Electrification Strategy

Campus and building-level carbon reduction roadmaps covering HVAC electrification, envelope upgrades, renewable energy, and net zero pathways.

LEED Consulting

Strategic credit selection, energy modeling, documentation, and submittal support for LEED BD+C, ID+C, O+M, and EBOM.

Passive House (PHIUS)

Passive House modeling and certification consulting including envelope optimization, mechanical system selection, and PHIUS+ documentation.

Net Zero Energy Consulting

Integrated design consulting and documentation aligning load reduction, efficient systems, and on-site generation.

Sustainability Consulting

Healthy materials evaluation, resiliency planning for climate events, and circularity strategies across design and operations.