Key Takeaways

  • Solas Capital treats demand-side decarbonization not as corporate credit or venture risk, but as classic infrastructure project finance using bankruptcy-remote Special Purpose Vehicles (SPVs).
  • Energy-as-a-service (EaaS) contracts decouple debt service from volatile electricity spot markets by securing availability-based contracted cash flows directly from property hosts.
  • Because heating, cooling, and lighting are essential operational services, contract continuation rates remain high, keeping loss-given-default rates low even when building tenants face broader solvency stress.
  • Carneiro benchmarks the demand-side decarbonization sector directly against utility-scale solar from fifteen years ago, arguing that policy mandates like the EU Energy Performance of Buildings Directive and ETS 2 will convert discretionary retrofits into compulsory capital outlays.

Project Finance Mechanics for Granular Assets

Institutional lenders usually ignore building retrofits. A single heat pump installation or LED lighting upgrade demands a sub-scale check that private credit funds cannot justify underwriting on an individual balance sheet. The transaction costs eat the returns before the capital deploys.

Sebastian Carneiro of Solas Capital routes around this hurdle by packaging thousands of scattered demand-side decarbonization assets into consolidated financing vehicles. “We underwrite exactly like traditional infra debt. It's a classical project finance approach with a ring-fenced, bankruptcy remote SPV,” Carneiro explains.

The engineering matches a power plant financing, but the footprint sits inside basements and drop ceilings across private real estate portfolios. As Carneiro notes, “And I think the biggest difference really is the granularity of the projects and the integration into buildings.” By bundling these micro-assets together, managers reach institutional ticket sizes while stripping out merchant power risk through availability-based revenue models.

Why HVAC Outlives Tenant Default

Underwriting physical assets embedded on another party's private property creates an obvious creditor anxiety: what happens to the debt when a property owner or commercial tenant goes bankrupt? You cannot easily repossess an air handler or a ceiling grid without destroying asset value.

Carneiro argues that the operational reality of commercial real estate protects the lender. Commercial properties cannot lease space, operate machinery, or house workers without climate control and light. If an occupant collapses, the receiver or the incoming tenant still has to keep the building running.

“So the probability that they continue the contract is very high. Or in technical terms, if a customer defaults, the loss given default is very low,” Carneiro states. That contractual stickiness, paired with blended finance first-loss guarantees, gives the debt tranche an exceptionally defensive recovery profile that corporate rating agencies often miss when evaluating mid-market counterparties.

Regulatory Pressure Forces Scale

Commercial property managers spent years treating building efficiency as an optional sustainability pilot. Carneiro points to European policy that strips away that discretion. “The European Performance of Buildings directive and the carbon trading ETS two coming into force, make building decarbonization an obligation and not an option,” he observes.

This shift mimics the trajectory of renewable generation in the late 2000s. “Look, I think with the energy efficiency asset class, it's comparable to where utility scale solar stood fifteen years ago before it became a core allocation,” Carneiro argues. When compliance mandates hit balance sheets, commercial real estate owners stop paying for retrofits out of direct capex. They turn to off-balance-sheet service contracts, handing long-dated yield to infrastructure credit funds designed to aggregate the paper.

Why It Matters

Private credit funds face intense competition in conventional power generation and digital infrastructure, compressing spreads on standard project debt. Aggregating demand-side assets provides a playbook for capturing higher yields in a market segment backed by structural European regulation. As building owners move decarbonization off their balance sheets, debt funds that master granular SPV underwriting will institutionalize an asset class that traditional lenders still view as unbankable.