Energy affordability is as much a utilization problem as a supply problem. The grid is built to handle rare moments of peak demand, and ratepayers carry the cost of that excess capacity year-round. Research from Duke University found that the U.S. electric grid operates at an average of just 53% of its available capacity across 22 regional systems. Much of the untapped opportunity is at the distribution level, where residential load flexibility can have the most direct impact on costs and reliability.
As homes add high-draw loads like EVs, heat pumps, heat pump water heaters, pool pumps, induction ranges, and accessory dwelling units, each one presents the same choice: add infrastructure, or add intelligence. For homeowners, builders, and utilities alike, the economics of that choice are shifting decisively toward intelligence.
The Utilization Gap
As data centers and electrification converge, the U.S. grid is facing unprecedented load growth that existing infrastructure was not built to support. Building new assets to meet this demand takes years, and it only adds to utility bills.
The most direct path to lower rates requires better use of existing infrastructure. The Brattle Group estimates that optimizing existing grid assets could save customers $170 billion, yet utilities have had little regulatory incentive to do so.
Virginia's HB 434, signed into law this spring, is a first-of-its-kind step. It requires Dominion Energy and Appalachian Power to measure grid utilization at peak demand and deploy solutions, including energy storage and grid-enhancing technologies, to increase capacity without building new infrastructure. Similar frameworks are gaining momentum nationally, as the Utilize Coalition pushes comparable legislation in Maryland, New Jersey, and California. The technology to deliver on these kinds of mandates already exists, and it is already in millions of homes.
The Electrical Panel's New Job
A home’s electrical panel has historically been a passive device, but EV chargers, heat pumps, and other modern devices are adding high-draw loads that exceed what a standard panel was designed to handle. Intelligent load management devices monitor total consumption in real time and automatically manage which loads run and when. Smart panels keep a home within its existing service limits without sacrificing any of the appliances a homeowner wants.
The benefits extend to everyone involved in electrifying a home. For builders, a lower overall load calculation enables a smaller service to the home, potentially avoiding five figures in per-lot infrastructure costs, particularly in markets where utility capacity constraints slow permitting and interconnection timelines. For contractors, the retrofit does not require replacing the panel or coordinating with the utility. For utility program designers, this brings flexible load management to homes at scale, regardless of what hardware is already installed.
ABB's ReliaHome® platform reflects that range of needs with two approaches. ReliaHome Flex is designed for targeted control: two controllers, one on a new high-draw appliance and one on an existing load of similar size, manage power between them automatically. The original panel stays in place, utility coordination is not required, and controller installation takes minutes.
ReliaHome Smart Panel delivers whole-home energy management, with up to 12 circuits, battery backup optimization, TOU rate scheduling, and full consumption visibility through the ReliaHome app.
Both products are also compatible with any brand of load center, giving contractors and program designers flexibility across the varied environments they encounter in the field.
The Case for Virtual Power Plants
The benefits of intelligent load management extend well beyond the home. Virtual power plants (VPPs) aggregate the flexible loads and stored energy of thousands of homes into a dispatchable resource that utilities can call on during peak demand, reducing reliance on expensive peaker plants and avoiding the cost and timeline of building new generation.
Most residential VPP programs have historically required homeowners to have solar, storage, or both. ABB's residential energy platform, built on technology from Lumin, uses circuit-level load control to extend demand response eligibility to any home with a high-draw appliance, significantly broadening the pool of customers utilities can enroll. ABB provides the hardware and software that makes this possible at scale. Our fleet portal and API connect directly to existing utility DERMS platforms, enabling aggregation without requiring utilities to rebuild their systems. An early pilot in California validated the concept: homeowners opted in, set preferences once, and the system automated load reduction during high-price grid events, compensating participants directly.
For utilities evaluating non-wires alternatives under frameworks like Virginia's HB 434, these tools are faster to deploy than distribution upgrades, measurable in utilization terms, and designed in a way that builds customer participation rather than friction.
Turning Rate Complexity Into Savings
Most homeowners are aware that electricity costs are rising, but have limited visibility into when and how they use energy. Time-of-use (TOU) rates, which charge more for electricity during times of high demand, are becoming standard practice as utilities work to shift load away from peak hours. Homeowners who respond to those price signals can meaningfully reduce their bills, but doing so consistently requires automation most do not have today.
Platforms like the ReliaHome app provide this automation. Homeowners define their preferences once, specifying which appliances can be controlled and when, and the system handles cost avoidance from there. For homeowners with solar and storage, the app also optimizes battery dispatch, limiting demand during peak hours to maximize export value and extending runtime through automated load management.
Homes with ReliaHome deliver buyers a financial benefit that continues well beyond the point of sale, and as electricity costs climb, the ability to manage them becomes a genuine differentiator for builders competing on value.
The Grid Starts at Home
The tools to flatten peak demand, avoid costly infrastructure builds, and put meaningful energy control in the hands of homeowners exist today, but delivering on that potential requires more than technology alone. Our installer training programs and U.S.-based customer support help ensure the platform is configured to deliver optimal savings and backup performance. ABB is building the platform that makes grid-scale residential energy flexibility possible, and we look forward to advancing these solutions alongside the utilities, builders, and installers helping homeowners take control of their energy costs.
To the utility resource planners working to move demand response from pilot to scale, the builders working to deliver future-ready homes without inflating per-lot costs, the policymakers searching for near-term tools that address affordability without waiting years for new transmission infrastructure, and the homeowners trying to make sense of a bill that keeps going up — we see you.
