Why Grid-Interactive Efficient Buildings Feature Prominently in Joe Biden’s Plans
Originally published on RMI.org.
By John Matson
The White House on May 17 announced a slate of new programs aimed at integrating US buildings into the clean energy economy. The initiatives include electrification programs for existing homes, workforce training for next-generation jobs in the buildings sector, and efforts to increase the adoption of efficient electric heat pumps and EV fast chargers.
Alongside the plans for job training and building electrification, the announcement also highlighted the Biden administration’s goals for grid-interactive efficient buildings — a less well-known approach that has significant potential to reduce carbon emissions.
In this blog post, we’ll explore what grid-interactive efficient buildings are and why they feature so prominently in plans for a clean energy future.
What Are Grid-Interactive Efficient Buildings?
A grid-interactive efficient building (GEB) continuously optimizes energy use by combining efficiency measures such as LED lighting, efficient heat pumps, and high-performance windows with smart technologies such as solar, battery storage, and integrated building controls. Rather than simply consuming energy from the grid based on the building’s baseline energy use and occupant demands, a GEB interacts with the grid to continuously manage its demand in response to key signals from the electric utility.
To save money, reduce strain on the grid, or limit carbon emissions from electricity generation, a GEB might shed load (e.g., automatically dimming LED lights throughout the building) or shift its load from one time to another (e.g., drawing from on-site batteries rather than the grid) in a practice known as demand flexibility, or load flexibility.
What Is Demand Flexibility?
Demand flexibility is a building’s ability to shed or time-shift its energy demand in response to near-real-time signals about conditions on the grid. Demand flexibility signals can include the current price of electricity, the availability of renewable energy sources such as solar and wind, and the carbon intensity of the current energy mix. For instance, a GEB might employ demand flexibility to shift its peak electricity demand to a time of day when solar energy is abundant and might otherwise be curtailed.
Demand flexibility offers significant promise for reducing the carbon emissions from building operations, especially as the grid integrates more distributed energy resources. But the benefits can extend beyond cost and carbon savings. As detailed in a new RMI insight brief, buildings that flex their demand can shift energy away from peak usage times, when utilities often rely on fossil-burning “peaker” plants to help meet surging demand. Demand flexibility can therefore reduce the need for these peaker plants, eliminating not only their carbon emissions but also their significant contributions to air pollution.
What Are the Potential Benefits of GEBs?
The potential energy, emissions, and cost savings from combining energy efficiency and demand flexibility in GEBs are substantial. Buildings account for more than 70 percent of US electricity consumption and at least one-third of US emissions, according to the US Department of Energy’s Building Technologies Office (BTO). A new GEB roadmap from the BTO estimates that smarter, more efficient buildings can eliminate 80 million tons of CO2 emissions annually by 2030, reducing the emissions of the entire US power sector by 6 percent. The emissions savings from GEBs would be equivalent to retiring more than 50 midsize coal plants or taking 17 million cars off the road.
Widespread adoption of GEB technologies would reduce peak loads on the grid, which would in turn reduce the needed capacity of the grid to meet those demands. The cost savings of GEBs would therefore extend beyond the owners and tenants of the GEBs themselves. By 2040, the BTO calculates, GEBs could save the US power system more than $100 billion in cumulative electricity generation and transmission costs.
What Are the New US Goals for GEBs?
In the GEB roadmap, released May 17 in conjunction with the White House announcement, the US Department of Energy laid out a goal of tripling the energy efficiency and demand flexibility of buildings by 2030, relative to 2020 levels. To reach that goal, the roadmap articulates 14 recommendations, from enhancing R&D for smart-building technologies to policy options for encouraging integration of GEB practices.
Among the roadmap’s recommendations is that government agencies should “lead by example” — deploying GEB measures in government-owned buildings to demonstrate the benefits and provide valuable insights and best practices for more widespread deployment. Already, the vast majority of US states have adopted requirements for energy usage or efficiency in government buildings, and demand flexibility could become a valuable tool for meeting those requirements.
At the federal level, the savings from GEBs would be significant. The US General Services Administration (GSA) is the nation’s largest landlord, with nearly 10,000 buildings and more than 375 million square feet of real estate under its control. In a 2019 cost-benefit analysis, RMI found that the GSA could save $50 million annually (about 20 percent of its energy expenditures) by implementing GEB measures across its portfolio of buildings. In all six locations that RMI studied in the GSA analysis, the payback period for GEB improvements was less than four years (and in some cases less than a year), demonstrating the soundness of the investment for the government and for taxpayers.
Next Steps at the Federal Level
A new report from the National Renewable Energy Laboratory (NREL) provides a blueprint for the GSA to select buildings that are ideal candidates for cost-effective GEB projects. The report also lays out strategies and best practices for integrating GEB measures into the various phases of contract development for energy-focused building retrofits.
The NREL report notes that the sheer number of buildings managed by the GSA would allow the agency to screen its real estate portfolio for the highest-value GEB candidates before applying the early lessons learned in implementing GEB measures in performance contracts. NREL also notes that the buildings with the greatest economic potential for grid-interactive efficiency tend to share features such as time-of-use energy rates, high demand charges for a building’s peak energy usage, or utility or state programs that incentivize utility customers to be responsive in their energy demand.
One of the challenges identified by the new reports from BTO and NREL is the maturity and availability of some technologies that would optimize GEB implementation. Systems for coordinated, whole-building automation in response to signals from the grid are among the emerging technologies that will be needed to maximize GEBs’ benefits. The GSA’s Proving Ground program is evaluating some of these building control systems in demonstration projects, and the learnings from those evaluations should help to further shape best practices for implementing GEB projects nationwide.
The Path to 2030 and Beyond
By integrating energy efficiency, distributed energy generation technologies, and demand flexibility into its buildings, the GSA can help to advance the state of the art in grid-interactive efficient buildings. The proof points from GEB projects in the federal government’s building portfolio will not only help advance the DOE goal of tripling demand flexibility and efficiency measures by 2030. They should also make for a cleaner, more resilient grid powering smarter, more efficient buildings—all while saving taxpayers money.
MINI has partnered with lifestyle brand, Deus Ex Machina, to develop this. It’s called the Skeg, and it’s a high-performance, racing-inspired electric concept car that’s sure to lighten the mood – by shedding fully 15% of its mass in the quest for speed.
One of a pair of exclusive, one-off concepts based on MINI’s John Cooper Works cars. The Deus Ex Machina Skeg celebrates MINI’s storied racing history with what the company calls, “a clean, minimal, and quiet rebellion,” that draws on materials, technologies, and philosophies from the world of surfing.
The electric MINI JCW Skeg is stripped to its essentials, with much of the steel and aluminum bits replaced with lightweight fiberglass to maximize acceleration while driving the minimalist aesthetic home. The end result weighs 15% less than the standard car – but makes the same stout 190 kW (258 hp) as the production car.
Surf’s up
The interior is stripped back to the barest essentials, reflecting BMW’s vision of a surf culture that prioritizes function over form. MINI claims the end result resembles a mobile surf shop, with fiberglass trays for wetsuits, specially shaped bins, neoprene seats, and other touches that “bring the surf culture into the interior.”
For their part, the BMW and MINI styling team seems pretty proud of its minimalistic electric endeavor. “In this extraordinary collaboration … every single detail has been crafted with artisanal precision and expertise,” says Holger Hampf, Head of MINI Design. “This has resulted in unique characters that are clearly perceived as belonging together through their distinctive design language and use of graphics.”
The concept retains the production version’s 54.2 kWh li-ion battery pack, up to 250 of WLTP range with the production aero kit, sprints from 0-100 km (62 mph) in just 5.9 seconds. With 15% less mass, though, that should jump to more than 255 miles, with 0-60 times dropping below 5.5 seconds.
I dig it – but I’d skip the surf bits and just appreciate the raw composite, minimalist interior look for what it is. Take a look at the image gallery, below, then let us know what you think of MINI’s Skeg concept in the comments.
MINI Skeg concept | gallery
SOURCE | IMAGES: BMW MINI.
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Environment
Volvo Penta teams up with e-power to equip Boels with next-gen Battery Energy Storage Systems (BESS)
Veteran marine and industrial power solutions company Volvo Penta has joined forces with energy solutions provider e-power to build battery energy storage systems (BESS). Volvo Penta’s battery systems for energy storage will power BESS units built by e-power that can be catered to a range of applications, most notably construction rental clients like Boels Rentals in Europe.
Volvo Penta is a provider of sustainable power solutions that currently serves land and sea applications under the Volvo Group umbrella. As more and more of the world goes all-electric, the global manufacturer has also adapted, sharing cultural values with Volvo Group to engineer new and innovative sustainable power solutions.
Nearly 100 years later, Volvo Penta remains an industry leader in marine propulsion systems and industrial engines. As more and more of the world goes all-electric, the Swedish manufacturer has also adapted, sharing cultural values with Volvo Group to engineer new and innovative sustainable power solutions.
For example, all Volvo Penta diesel engines now run on hydro-treated vegetable oil (HVO), reducing well-to-wheel emissions by up to 90% across the marine and industrial power industries. On the zero-emissions side, Volvo Penta has expressed its dedication to fossil-free power solutions, including battery electric components to serve heavy-duty applications such as terminal tractors, forklifts, drill rigs, and feed mixers, to name a few.
To leverage its battery electric value chain, Volvo Penta has also ventured into battery systems for energy storage (or BESS subsystems). These energy-dense, purpose-built BESS subsystems can provide portable, sustainable energy for all-electric charging and reduce grid dependency.
Volvo Penta to deploy battery systems for energy storage
Volvo Penta recently announced a strategic partnership with e-power, a Belgian power solutions provider. Together, Volvo Penta and e-power will develop a scalable Battery Energy Storage System (BESS) for Boels Rental.
The collaboration continues a long-standing partnership between all three companies. Boels – one of the largest construction rental companies is a long-time customer of e-power generators that utilize Volvo Penta engines. As the company shifts toward electrification and sustainability, it will again turn to those companies to deliver reliable performance.
Volvo Penta’s BESS subsystem comprises battery packs, a Battery Management System (BMS), DC/DC converters, and thermal management, combining to offer a compact, high-density, and transport-friendly solution optimized for rental operations. The company shared that this BESS design is integration-ready, enabling other OEMs like e-power to adapt and scale systems to customer-specific needs. Per e-power business support director, Jens Fets:
We’ve built our reputation on reliability and efficient power systems. Working again with Volvo Penta, this time on battery energy storage, allows us to meet the growing demand for energy in a silent, low-emissions, compact and mobile design—especially in rental applications.
The deployment of these new battery energy storage systems will help Boels cater to its customers’ growing demand for clean, silent, and mobile energy solutions in construction and other industrial applications.
Aside from being more quickly adaptable to customer needs, Volvo Penta says its BESS architecture marks an overall shift in rental power systems. This is welcome news for all who support a cleaner, more sustainable future across all industries.
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That didn’t take long! Just a few hours after Mercedes revealed the screen-heavy interior of its upcoming 2026 GLC EV, photos of the new crossover’s exterior – and that controversial grille! – leaked on Instagram and Reddit. We’ve got them here.
Two days ahead of the GLC EV’s officially schedule global debut, images that reportedly show the new 2026 Mercedes undisguised have leaked on Instagram and Reddit. They show the blocky new light-up grille on the nose of a very smooth, jellybean-like crossover shape that, despite Mercedes’ insistence that it’s moving away from the EQ series’ design language, looks an awful lot like an EQ Mercedes.
Check out the leaked images from kindleauto’s Instagram account, below, and see if you agree with that assessment.
If you need to see more before you feel comfortable commenting on the new SUV’s looks, there’s a few more angles over on the r/mercedes_benz subreddit.
Leaked exterior pictures of the upcoming GLC EV
byu/Quick_Coyote_7649 inmercedes_benz
As with everything else on the internet, take those unofficial images with a grain of salt and maybe wait until the GLC EV’s official reveal in a few days’ time before casting your final vote on the new look – but there’s very little reason to believe the new Mercedes will look terribly different from what you see here.
Will the new grille and tech-forward interior with its massive, 39″ screen and MB.OS software be enough to turn the tide for Mercedes-Benz, enabling it to finally gain some traction in the electric crossover market? That remains to be seen, but the recently updated Tesla Model Y and crisply-styled new BMW iX3 with its 500 miles of range will make it an uphill battle, for sure.
We got a sneak peek at the new GLC back in July, when Mercedes-Benz Group CEO, Ola Källenius said that, “We’re not just introducing a new model – we’re electrifying our top seller.” Back then, we learned that the new GLC EV would have a wheelbase 3.1″ longer than the current ICE-powered model, as well as more head- and leg-room for its occupants and an extra 4.5 cubic feet (for 61.4 total) of cargo space.
Källenius also promised an innovative new 800V electric architecture and the latest battery tech, which will enable the electric GLC to add around 260 km (~160 miles) of WLTP range in just ten minutes thanks to more than 300 kW of charging capability.
SOURCES | IMAGES: kindleauto; Quick_Coyote_7649.
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Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.
FTC: We use income earning auto affiliate links. More.
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