Industrialized Construction Innovation
NREL leverages the benefits of industrialized construction—higher-quality buildings, faster construction timelines, improved productivity, increased technology integration, and labor cost savings—to enable cost-effective strategies for energy efficiency, integrated grid-interactive controls, and renewables in retrofit and new construction projects.
There is a growing need globally to build and upgrade the building stock to be affordable, energy-efficient, and resilient. The United States can emerge as an international leader in this space through research and development (R&D).
NREL's Industrialized Construction Innovation research area focuses on R&D of industrialized energy efficiency retrofits and new construction at scale. The scope of work includes whole-building level as well as subassemblies of components, pods, panels, and volumetric modules. NREL researchers draw synergies between capabilities such as design for manufacturing and assembly, process optimization, construction and retrofit technology, digitization, and data analytics to influence the improvement and production of buildings to increase performance, enhance energy efficiency, and reduce embodied carbon.
NREL seeks interest from the building retrofit and new construction sectors to collaborate on process and product innovation through optimized improvements in industrialized construction.
View the ICI factsheet.
Industrialized Construction Innovation aims to modernize the U.S. built environment with improved energy efficiency and innovative grid interactivity by developing the following novel capabilities:
- Design for manufacturing and assembly of energy efficiency strategies: To perform subassembly design that optimizes construction and energy efficiency
workforce productivity and to develop a standardized catalog of subassemblies of building
components, pods, panels, and volumetric modules.
- Improve processes by prototyping in real-world and immersive environments: To assemble and integrate energy efficiency strategies on real-world production
lines and in virtual reality using noninvasive construction and retrofit technologies
tied to discrete event simulation modeling.
- Streamline workflows through integrated building product design to advanced manufacturing and life cycle assessment
tools: To introduce digitization and automation as well as reduce process waste and embodied
environmental impact considerations during construction.
- Perform advanced time and motion studies to optimize process efficiency: To perform machine learning-based data analytics on collected real-world data, to develop productivity modeling from design through manufacturing, and to create digital twins of processes that evaluate proposed improvements.
The Industrialized Construction Innovation research area has a growing portfolio of projects.
Integrating Energy Efficiency in Permanent Modular Construction
In this project, NREL works to achieve zero energy ready buildings through cost-effective industrialized construction methods with U.S. modular construction factories. This three-year project (2018–2021) is funded by the U.S. Department of Energy Building Technologies Office. The project addresses barriers to whole-building system integration, such as lack of industrialized construction assessment framework following design for manufacturing and assembly criteria; problematic on-site installation, commissioning, and configuration of controls; poor installation quality of thermal and air barriers; lack of modular heating, ventilating, and air-conditioning systems and domestic hot water; and lack of cost-effective integration for grid-friendly design and emerging technologies.
More details can be found in the 2021 ASHRAE Virtual Design and Construction Conference presentation Integrated Mechanical Pods.
This project involves streamlining analyses from the building information model, building energy model, discrete event simulation model, and life cycle assessment into a digital twin called Factory Information Model. The Factory Information Model, developed in partnership with academic experts, enables the modular construction factory partners to make more informed decisions for cost-effective integration of energy efficiency strategies, integrated grid-interactive controls, and renewables into their built products. Identified energy efficiency strategies include framing with thermally broken studs and panels, aerosol-based envelope sealing, integrated mechanical pods, and a smart apartment controls platform.
More details can be found in the 2020 Autodesk University Conference presentation Process-Based Digital Twin for Industrialized Construction Efficiencies.
As of December 2020, more details on the project, early wins, and its potential impact have been documented in the overview deck. Learning outcomes and future work have been documented in 2020 ACEEE Summer Study paper titled Integrating Energy Efficiency Strategies with Industrialized Construction for a Clean Energy Future.
Oregon State University
Momentum Innovation Group
Volumetric Building Companies
Vermont Energy Investment Corp.
Advanced Building Construction Initiative
The following projects funded under the U.S. Department of Energy's Advanced Building Construction (ABC) Initiative fall under the Industrialized Construction Innovation research area:
ABC Initiative Analysis (NREL PI: Stacey Rothgeb)
ABC Simple Install System (NREL PI: Chioke Harris)
Adaptive (NREL PI: Ryan Tinsley)
Chicago Stock Analysis (NREL PI: Janet Reyna)
HUD Factory Integrated Solar and Storage (NREL PI: Ankur Podder)
Membrane Dehumidification (NREL PI: Eric Kozubal)
Ice Juneau (NREL PI: Vanessa Stevens)
Zero Energy Modular Strategy (NREL PI: Ankur Podder)
Zonal Heat Pump for Whole-Home Panelized Retrofits (NREL PI: Lena Burkett).
In 2020, the Building Technologies Office awarded $26.3 million to 40 competitively selected projects, led by 29 organizations, to pursue innovations that can advance the goals of its Advanced Building Construction with Energy-Efficient Technologies and Practices Funding Opportunity.
See the list of projects under the ABC Initiative with their respective lead organizations and partners.
Wells Fargo IN2
The Wells Fargo Foundation supports collaboration between NREL researchers and early-stage startup companies through the Wells Fargo Innovation Incubator (IN2) program. Within the Industrialized Construction Innovation research area, NREL is working with three startup companies: Blokable Inc., Pre Framing Corp., and STRATIS IoT. These select startups are focused on affordable housing and building efficiency. Across these three projects, NREL is involved with developing means, methods, and tools for construction process innovation and grid interactivity.
Within this research area, additional projects are underway covering high-impact focus areas such as mass production and delivery of low-embodied high-performance buildings with cross-laminated timber, reducing assembly and installation soft costs during in-factory integration of solar photovoltaics and in-apartment battery/energy storage, pilot demonstration of building-integrated photovoltaics replacing typical facade rainscreen of modular apartment units, and developing a novel virtual reality digital twins framework to demonstrated how immersive environments of industrialized construction can be leveraged to train the energy efficiency workforce of the future.
While having several focus areas, the Wells Fargo IN2 program invests in startup companies with products to address affordable housing and buildings energy efficiency challenges. These startup companies create products with tremendous potential to positively impact energy use and the environment.
Pre Framing Corp.