enSights launches auditable PJM battery economics calculator to fix the double-counting problem its CEO has been flagging

enSights, a renewable energy portfolio management software company, released a Battery Economics Calculator specifically for the PJM market on 7 July 2026, combining battery sizing, degradation parameters, revenue modelling, and ROI analysis into a single auditable framework. The launch is a direct product response to a problem the company's CEO has been publicly diagnosing: spreadsheet-based models that double-count regulatory revenue streams and erode investor confidence in otherwise viable projects^[1].

The modelling problem

Data centres are driving up electricity demand across PJM, capacity auctions have shown supply constraints, and peak prices are rising - conditions that should be favourable for battery storage developers. But some BESS developers are building financial models that struggle to satisfy investors.

Alon Maskovich, CEO and co-founder of enSights, put the diagnosis plainly: "When you are running it on spreadsheets and you are trying to do different simulations, usually (developers) are double counting different aspects of the regulations."

The complexity of PJM's revenue stack makes this easy to do. Over 80% of battery revenues in PJM today are earned through providing Regulation - a market with its own capacity payment, mileage payment, and performance score, all of which interact with energy arbitrage and capacity auction revenues. Regulation makes up 47 to 66% of wholesale revenue for distribution-connected batteries, but PJM's regulation market is only 750 MW, and as battery supply grows, that revenue erodes. A model that fails to account for saturation - or that counts the same MW of capacity in two revenue streams simultaneously - will produce projections that investors cannot validate.

What the calculator does

The Battery Economics Calculator helps developers and owners evaluate the economic viability of storage projects by combining battery sizing, revenue modelling, ROI analysis, and operational assumptions into a single auditable framework.

The tool incorporates battery degradation parameters alongside revenue modelling and ROI analysis - a detail that matters because degradation curves directly affect how much regulation capacity a battery can reliably offer in year three versus year one. Unlike traditional modelling tools, it is integrated with the wider enSights EMS and Energy Business Management Platform, allowing investment assumptions to be carried through deployment, operations, and optimisation.

That integration is the structural difference from a standalone spreadsheet. As Maskovich has noted, most organisations can model a storage project, but very few can connect those projections to ongoing operational execution - the goal is to help customers understand whether a project should be built, how it should be configured, and how to maximise performance once it is operational.

The BTM opportunity in view

Maskovich has also pointed to behind-the-meter storage as a specific opportunity the modelling problem is obscuring^[1]. A front-of-meter distributed battery could have earned $352 to $449 per kilowatt-year from wholesale markets in the July 2025-2026 period; behind-the-meter BESS could have earned $55 to $231/kW-year over the same stretch. The range is wide, and the difference between the top and bottom of that range is largely a function of how well the asset is modelled and dispatched.

The industry needs to focus on performance management, use validated data for modelling, and connect operational decisions to financial outcomes - and, as Maskovich has put it, look at the industry as a whole before making the same mistakes that have been done on the solar side of things.

The full interview with Maskovich is due to be published by Energy-Storage.news Premium in the coming days^[1]. The Battery Asset Management Summit USA 2026 is scheduled for 15-16 September in Garden Grove, California, where modelling methodology is likely to feature prominently on the agenda^[1].

What to watch: whether the auditable-framework approach gains traction with lenders and tax equity investors as a diligence standard - and whether PJM's ongoing Energy Storage Resource Model Enhancements stakeholder process, which began in July 2026, tightens the regulatory definitions that make double-counting possible in the first place.