> ## Content Index > Fetch the complete content index at: https://nexi.fund/llms.txt > Use this file to discover other available public pages before exploring further. # Demand charges eat half the bill. Novele just raised $17M to attack them. - URL: https://nexi.fund/novele-demand-charge-batteries/ - Published: 2026-10-10T07:00:50.000Z - Updated: 2026-10-10T07:00:50.000Z - Description: Novele closed an oversubscribed $17M Series A for 2-inch batteries that mount inside occupied commercial buildings, paired with software that predicts the power burst setting the demand charge. PJM's capacity price has gone from $28.92 to $333.44 per MW-day in three auctions. - Author: Nexi.fund Labs - Tags: Energy & Climate, #mode-1, #hook-statistic, #track-E, #layout-scene-weave At 3:45 on a Tuesday morning, a closed retail store draws enough current to set the highest number on its meter for the whole month. The spike lasts eleven minutes. Days later the building's owner receives a bill in which that one burst can account for more than half the total — a demand charge, priced on the worst moment instead of the average one. On September 30, Novele closed an oversubscribed $17 million Series A led by boisei labs to chase exactly that number. The Stamford and Irvine startup builds 2-inch-thick lithium iron phosphate boards that mount on the inside wall of an occupied commercial building, plus a control layer that learns the building's load shape well enough to step off the grid before the spike arrives. Locke Health, Arup Ventures and construction firm Barton Malow joined the round, alongside commercial real estate owners the company would not name. CEO Charles Conwell frames the bet as stranded capacity rather than new capacity. The megawatts the grid needs through the hottest afternoon hour are already sitting inside the buildings people work in. Novele's own materials put more than 2,000 buildings in a 2.6-billion-square-foot pipeline, with live systems running at Fortune 50 customers it also declines to identify. ## The eleven-minute peak A commercial electricity bill has two parts. The energy charge is billed on kilowatt-hours, and it rewards using less. The demand charge is billed on the highest draw inside a set window during the billing period, and it punishes one thing only: spiking. BoardOS, Novele's control software, publishes a detail that explains the whole design. The peak that sets the demand charge, the company writes, can form and pass in eleven minutes — at 3:45 in the morning, in a store that is closed. The bill arrives a month after the event. Commercial operators already know this, which is why most utilities run demand-response programmes paying buildings to cut load when the grid asks. What breaks in practice is the tenant. Someone has to stop a dishwasher, hold back an EV charge, or accept a dimmer lobby, at an hour the grid operator picked. Conwell called the alternative either ineffective or something that makes tenants unhappy. Timing is not incidental. PJM's capacity price has moved further in three auctions than in the preceding decade. The 2024/25 base residual auction cleared at $28.92 per megawatt-day. The 2025/26 auction cleared at $269.92\. The 2026/27 auction cleared at $329.17 in every zone. The December 2025 auction, which set the 2027/28 delivery year, cleared at $333.44 — a third consecutive record, and the first in PJM's history to leave the operator short of its reliability target across the whole footprint. It procured 145,777 MW of capacity and missed the 20% installed reserve margin requirement by about 6,500 MW. The operator raised its peak demand forecast by 5,250 MW for that auction, almost entirely data centres. ## What five kilowatt-hours can and cannot shave Each EnergyBoard holds 5 kWh and delivers 2 kW continuous, 2.64 kW peak. The cells are lithium iron phosphate, chosen for a documented safety record rather than for maximum energy density, which is a deliberate trade in a product meant to hang inside an occupied room. The enclosure meets UL 50 Type 1 — the same standard as the electrical equipment already in the building. UL 1973 and UN 38.3 cover the battery and its transport. UL 9540 is the system listing. UL 9540A is the fire test fire marshals rely on when deciding whether a battery may go indoors. In May 2026 Novele completed installation-level large-scale fire testing to the sixth edition of UL 9540A, published March 13 that year. The result supports cutting the required separation space between units by more than 60%, and it covered an alternative cell from a second qualified supplier. That edition matters more than the length of a certification list. UL 9540A is the only fire and explosion test method referenced in the 2026 edition of NFPA 855, and the revised Section 10 demands an explicit large-scale fire test that reports written to the fifth edition do not satisfy. Now the arithmetic the round does not fix. Demand charges are set by transients: a compressor starting, a bank of elevators, a server hall spinning up. Covering one means supplying its power for its duration, and that is a C-rate problem rather than a capacity problem. A board carrying 5 kWh at 2.64 kW covers roughly half an hour at nameplate. It handles the ordinary bumps of a commercial load. It does not handle a building's sharpest event, and the capacity tag that sets an industrial building's bill is built from five specific hours rather than from an average. The boards are modular and parallel with no fixed maximum, so a building installs enough of them to hold its own worst hour. That design choice pushes the real question into the tariff. Where the demand charge is set on a 15-minute window, shaving 400 kW for half an hour is worth real money. Where the demand charge is flat, the same hardware is expensive wall decoration. The company's payback figures need attribution rather than adoption. boisei labs, the lead investor, puts demand-charge reduction at 25–45% with payback of four to seven years, dropping under three once utility or government incentives are counted. Conwell told Heatmap separately that payback is typically 20 to 40 months. Both describe the same product and the same deployments. The gap is the incentive layer, and incentives are the variable that changes most by jurisdiction. Novele is targeting California, New York, New England and parts of PJM for that reason. 🎯 The bill arithmetic is proven: demand charges above half of a commercial bill are normal, and capacity cleared at a capped $333.44/MW-day in December 2025. The control layer is plausible engineering: circuit-level measurement feeding a model that predicts the burst instead of replaying a commissioning schedule. The scale is unproven: 2,000 buildings is a pipeline figure, and the Fortune 50 deployments are unnamed. ## What the $17 million is actually buying $17 million does not buy a factory. It buys deployment crews, engineering headcount and more training data for BoardOS. Novele builds vertically from the cell up, which is an expensive way to own the decision loop. Its argument is that software bolted onto someone else's battery crosses a vendor boundary on every dispatch, and that decision and action have to land in the same millisecond. > The capacity the grid needs is already sitting inside the buildings we work in every day. We just had to build something smart enough to use it.— Charles Conwell, co-founder and CEO, Novele The competition is not thin. Tesla has sold Megapack systems to commercial customers for years, and Voltus — a demand-response platform that raised $225 million of its own in October — aggregates commercial load while owning no hardware at all. Novele's wedge is the indoor envelope. A Megapack lives outdoors in a container. Thin panels can go inside a hospital corridor or an office and be distributed across the floor, running as one coordinated system instead of a single fenced asset. As we wrote in September, the version of this problem that drew the most attention this year was Google's: paying residential battery owners to release grid capacity for its data centres. That model reaches megawatt scale by recruiting households. A commercial building is already wired, already metered and already paying the demand charge, which makes it the better place to shave a peak. It is also a slower sale, because the buyer is a facilities manager with a capital request rather than a consumer with a subscription. A second caution sits inside the region's accreditation rules. The operator has cut the accredited capacity of demand resources and of battery storage in consecutive auctions, so a megawatt nominated into demand response earns less credited capacity each year even as the need for flexibility climbs. The roughly $325/MW-day collar agreed with Pennsylvania and extended by FERC through the 2029/30 auction holds that price signal down at the same time. A stable price makes a facilities budget easier. It is a poor signal to build anything against. ### Does shaving commercial peaks change what PJM actually builds? 🔮 **By the end of 2027, behind-the-meter commercial storage becomes a standard line item in large commercial retrofit budgets in at least three of the largest US capacity markets.** Probability: 55% — the engineering works, the fire-code path now exists and demand charges are rising. The binding constraints are installation labour and a four-to-seven-year payback most facilities teams still struggle to fund. #### ✅ Arguments for Novele converts part of its 2,000-building, 2.6-billion-square-foot pipeline into named reference deployments, and at least one Fortune 500 customer goes on the record before mid-2027. Utilities or state programmes open an incentive path for indoor-rated commercial storage in New York or New England, compressing payback below three years outside California. The operator stops cutting the accreditation of demand resources and storage, which would make behind-the-meter participation worth more than the local tariff saving on its own. **Criteria for confirmation:** one named Fortune 500 deployment plus a single utility incentive programme that explicitly covers indoor commercial storage. #### ❌ Arguments against Payback stays at four to seven years outside California, and facilities teams keep choosing HVAC efficiency work with a shorter return. Capacity prices stay pinned at the roughly $325/MW-day collar while interconnection reforms slowly add supply, draining the urgency driving installs today. A single high-profile fire incident indoors tightens NFPA 855 enforcement and pushes new deployments back to outdoor cabinets, where the economics are worse. **Criteria for refutation:** no named reference customer by Q3 2027, or a rule change requiring outdoor siting for indoor-rated systems. ### Where this lands #### 🟡 Most likely (45%) Commercial buildings adopt indoor storage selectively — high-demand-charge territories, portfolios that already have a capital plan. Novele ships a few hundred deployments and lands on the four-to-seven-year payback case. **Consequences:** behind-the-meter flexibility grows as a cost-avoidance product rather than a grid product. The commercial demand charge stays the largest line on the bill. #### 🟢 Best case (25%) Incentive programmes plus cheaper indoor-rated cells push payback under three years across the largest US capacity markets. Portfolios get sold as aggregated capacity the way residential fleets already are. **Consequences:** indoor commercial storage becomes a standard retrofit line, demand-response revenue turns into a real second margin, and two more well-funded entrants arrive chasing the same wedge. #### 🔴 Worst case (30%) The July 2026 auction cleared only 525 MW of new generation and stayed 6,831 MW short of requirement. Capacity prices hold at the cap while the supply problem underneath worsens. **Consequences:** bill-impact pressure pushes regulators to squeeze behind-the-meter options, the category shrinks to high-tariff pockets, and the peaker fleet keeps running. [ The Startup Raising $17 Million for Super-Thin, Wall-Mounted Batteries Katie Brigham interviews CEO Charles Conwell on how the indoor format differs from containerised systems, and reports the 20-to-40-month payback figure directly from the company. Heatmap News, 30 September 2026 ](https://heatmap.news/climate-tech/novele-series-a?ref=nexi.fund) The only independent trade interview with Conwell in the round — the source for the payback number that conflicts with the investor materials. [ Novele Closes Oversubscribed $17M Series A The company's own announcement: lead investor, participants, the 2,000-building pipeline, the Fortune 50 deployments and the completed UL 9540A testing. Novele newsroom, 30 September 2026 ](https://www.novele.com/newsroom/closes-oversubscribed-17m-series-a?ref=nexi.fund) Primary record of the round. Every pipeline and deployment figure in this piece traces to it, and none of them is independently audited. [ PJM Capacity Prices Hit Record High as Grid Operator Falls Short of Reliability Target The December 2025 auction: $333.44/MW-day across the region, 145,777 MW procured against a target missed by roughly 6,625 MW, and a 5,250 MW forecast increase driven almost entirely by data centres. Utility Dive, 18 December 2025 ](https://www.utilitydive.com/news/pjm-interconnection-capacity-auction-data-center/808264/?ref=nexi.fund) The market-design half of the story. Without this, the round reads as a hardware pitch rather than a response to a capacity market that stopped clearing. [ A Factory Owner's Guide to the PJM Capacity Charge Worked arithmetic from $28.92 to $329.17 per megawatt-day, the roughly $325 cap and $175 floor collar, and the July 2026 auction that procured 138,318 MW and came in 6,831 MW short. Open Factory, 8 May 2026 ](https://open-factory.com/articles/pjm-capacity-factory-bill/?ref=nexi.fund) Shows how a five-hour peak sets a twelve-month bill, and why shaving ordinary load hours does nothing for a capacity tag built on five specific afternoons. [ EnergyBoard Completes Large-Scale Fire Testing to UL 9540A 6th Edition The May 2026 test result: more than 60% less required separation space between units, an alternative cell from a second supplier, and the NFPA 855 reference that makes the sixth edition the binding one. Novele, 22 May 2026 ](https://www.novele.com/news/energyboard-ul-9540a-6th-edition-fire-testing?ref=nexi.fund) Indoor siting is a code problem before it is an engineering one. This is the document that decides how many boards fit in a given floor. [ 2028/2029 Base Residual Auction Report PJM's own release of the July 14, 2026 auction: 138,318 MW cleared at the $325 cap, 149,182 MW including fixed-resource-requirement supply, 6,831 MW below the reliability requirement, a 14.7% reserve margin, and 525 MW of new generation. PJM Interconnection, 14 July 2026 ](https://www.pjm.com/-/media/DotCom/markets-ops/rpm/rpm-auction-info/2028-2029/2028-2029-bra-results-report.pdf?ref=nexi.fund) The primary record. Every capacity-market number in this piece was checked against it rather than against the trade coverage that reported it.