Base Power Undercuts ComEd to Dodge PJM's Grid Jam

Can Base Power make PJM’s slowest bottleneck less relevant by turning homes into power infrastructure before new plants clear the queue?

That is the real question behind the startup’s Illinois launch. Base Power has begun selling its large home battery systems to residents in Illinois, its first move into territory operated by PJM Interconnection, according to TechCrunch. The headline price pitch is simple: Base says its Illinois rates are 25% below ComEd’s. The deeper play is sharper. Base is placing batteries behind the meter, where homes already connect to the grid, instead of waiting for PJM’s troubled interconnection process.

If this model scales, the most useful new “power plant” in constrained regions may not look like a plant at all. It may look like a coordinated fleet of home batteries.

Can Base Power turn homes into PJM capacity faster than PJM can approve new supply?

Base Power is not just selling backup power. It is trying to route around one of the power industry’s slowest chokepoints.

PJM, the largest U.S. grid operator by territory, has struggled with rising demand. Its territory includes Northern Virginia, one of the densest data center regions on the planet. TechCrunch reports that data center density, paired with a shortage of new generating sources, has pushed wholesale electricity prices in PJM to nearly double over the past year.

That matters because PJM paused applications for new generating sources starting in 2022 and only reopened the queue in April. For a market facing faster demand growth, that pause created a brutal timing problem.

Base’s answer is to avoid entering that line in the first place.

“We are deploying capacity behind the meter at the residential home, where an interconnection already exists, so we don’t wait in the interconnection queue,” Zach Dell, Base Power’s founder and CEO, told Canary Media.

XOOMAR analysis: That quote is the whole strategy. Base is treating the home connection as an existing access point to the grid. The company still has to manage customers, market rules, and utility-facing requirements, but it doesn’t need to build a conventional grid-scale project first and then wait for PJM to process it.

How does a battery at a house skip a grid-scale queue?

Base launched two years ago in Texas to build a virtual power plant around residential batteries. The company’s batteries start at 25 kilowatt-hours, which TechCrunch notes is larger than many competitors’ systems.

The company’s model also differs from a straightforward hardware sale. Rather than simply selling customers a battery, Base requires customers to buy electricity from it. In return, customers get backup power and, in Illinois, a rate Base says is 25% below utility ComEd’s.

The operational logic is direct:

• Customer side: The household gets backup power and cheaper electricity under Base’s offer.
• Grid side: Base controls a distributed fleet of batteries that can charge when power is cheap and discharge when the grid needs support.
• Business side: Base owns or operates enough behind-the-meter capacity to act less like a gadget vendor and more like a distributed power company.

TechCrunch says Base is already operating more than 500 megawatt-hours of battery storage in Texas, charging when electricity prices are cheap and dispatching when the grid needs it most.

XOOMAR analysis: This is why the Illinois launch matters. A home battery business in a stable power market is a convenience product. A home battery fleet in a strained PJM region becomes a capacity argument.

For readers tracking how infrastructure constraints are shaping tech investment, this has echoes of XOOMAR’s coverage of Idle GPUs Haunt Netris Series A in a16z's $15M Bet. Different market, same pressure point: capacity becomes strategic when the old supply path slows down.

Which numbers explain why Illinois is the test?

Base is entering PJM at an unusually tense moment.

The financing is not incidental. Andreessen Horowitz described its April 2025 investment in Base as a bet on distributed batteries becoming a “flexible buffer for the entire grid,” according to a16z.

That investor framing matters because Base is not pitching a marginal consumer device. It is pitching a new operating layer for power markets. The company wants many small assets to behave like one large resource.

XOOMAR analysis: PJM’s queue problem creates the opening. Base’s funding creates the execution test. The startup now has to prove that capital, software, installation operations, and customer contracts can move faster than traditional grid expansion.

Who benefits if the fleet actually shows up when called?

Homeowners will judge Base on four things: savings, reliability, installation friction, and trust. A 25% below ComEd rate is an attractive hook, but the backup power promise is just as important because the battery sits at the customer’s home.

Utilities may read the same model differently. Distributed batteries can reduce stress when demand spikes, but third-party control of customer-sited assets also complicates planning. A utility can forecast a substation upgrade. It may have less direct control over a startup-managed battery fleet spread across homes.

Grid operators have an even narrower concern: performance. A virtual power plant only matters if it responds when needed.

XOOMAR analysis: Base’s Illinois push will test whether residential batteries can be treated as dependable infrastructure rather than premium backup equipment. That is a higher bar than signing up customers. It requires visibility, dispatch discipline, and contracts that align customer comfort with grid needs.

The queue angle also cuts across consumer tech more broadly. XOOMAR recently covered how scarcity and ordering friction shaped demand in Steam Machine Preorder Throws $1,049 Buyers Into Queue. Base’s queue problem is far more consequential, but the strategic lesson is familiar: whoever controls access during a bottleneck gains negotiating power.

Does this make Base Power a utility, a battery company, or something harder to regulate?

Base sits in an awkward category by design.

It installs or manages batteries. It sells electricity to customers. It aggregates stored energy. It uses software to decide when batteries should charge and discharge. That stack does not fit cleanly into the old split between utility, power plant, and consumer hardware company.

That is the point.

Base’s model shifts the customer pitch away from climate-first hardware ownership and toward resilience-first service. Customers do not need to trade power or study wholesale markets. They buy electricity from Base and get a battery-backed service attached to the home.

XOOMAR analysis: This is a cleaner consumer pitch than many earlier home-energy models because the value proposition is immediate: lower quoted rates and backup protection. The hard part is buried in operations. Base must install physical systems, maintain them, coordinate dispatch, and keep customers comfortable with a company using their battery as part of a broader grid fleet.

The PJM launch will show whether that complexity can be hidden from customers without weakening the grid value.

What would prove the PJM workaround is real?

The next evidence will not be a funding round. Base already has those. TechCrunch reports a $1 billion round led by Addition in October and a prior $200 million round in April 2025 led by Andreessen Horowitz, Lightspeed Venture Partners, and Valor Equity Partners.

The proof will be operational.

Watch for three signals:

• Customer adoption: Base needs enough Illinois households to create meaningful aggregate capacity, not just a scattered set of backup systems.
• Dispatch performance: The batteries must charge and discharge in ways that help during tight grid conditions.
• Regulatory fit: The company must keep operating inside market and utility rules while still moving faster than projects stuck in the interconnection queue.

If Base performs in PJM, the pressure on the interconnection system gets harder to ignore. Capital will keep looking for routes around the queue instead of waiting inside it.

If the model stumbles, the lesson will be just as useful: distributed energy may move faster than traditional infrastructure, but it still has to coordinate with the old grid when conditions get tight. That is the test Illinois now puts in front of Base Power.

Impact Analysis

• Base Power is testing whether home batteries can add usable grid capacity faster than new power plants can clear PJM's queue.
• Cheaper residential electricity could appeal to Illinois customers facing pressure from rising wholesale power prices.
• If the model scales, distributed home batteries could become a meaningful tool for constrained grids serving data center-heavy regions.