The clean-energy transition has an equity problem that's easy to overlook. Most of the financial benefits — rooftop solar, home batteries, an EV in the garage — flow to households that own their homes and have capital to invest up front. The families who would gain the most from a lower electricity bill are often the least able to access the programs that lower it: renters, apartment dwellers, and households in the neighborhoods that already carry the heaviest pollution burden. They pay for the grid like everyone else, but the tools to save on it weren't built with them in mind.
California's Disadvantaged Communities Green Tariff — DAC-GT — was created to close that gap directly. It hands eligible households a meaningful, guaranteed bill discount and matches them to 100% clean power, without requiring them to own a roof, install anything, or spend a dollar up front. For the communities it serves, including many in San Diego County, it's one of the few clean-energy benefits designed to reach them where they are.
In this paper
01The gap DAC-GT fills
Rooftop solar is a wonderful deal — if you own your roof and can finance the system. That leaves out a lot of people. Renters can't install panels on a building they don't own. Apartment residents have no roof to speak of. And households living paycheck to paycheck can't put thousands of dollars down to start saving on their bills years later. These are, disproportionately, the residents of disadvantaged communities — the census tracts that score worst on California's environmental-burden screening, often because they've spent decades next to freeways, ports, and industrial sites.
DAC-GT inverts the usual model. Instead of asking a household to build its own generation, it connects that household to clean power generated elsewhere — at utility scale — and passes the savings straight through as a bill discount. There's nothing to buy, nothing to install, and nothing to maintain. The benefit shows up as a lower number on a bill the family was already paying.
Rooftop solar rewards the household that can afford to build it. DAC-GT was designed for the household that can't — and that needs the savings most.
02How the program works
DAC-GT is a California Public Utilities Commission program, administered across the state by the major investor-owned utilities and a growing roster of community choice aggregators. The structure is deliberately simple from the customer's side. An eligible household enrolls — in some cases it may be enrolled automatically — and from then on receives a 20% discount on its monthly electricity bill, for a term of up to 20 years, while having its usage matched to 100% renewable generation. No panels, no contract to finance, no upfront cost.
Behind the scenes, the program is funded through a dedicated clean-energy procurement mechanism: the utility or aggregator procures renewable generation specifically to serve these customers, and the program structure delivers the discount. The household doesn't have to understand any of that. From where they sit, their power got cleaner and their bill got smaller, and they didn't have to do anything but say yes.
| Feature | What the customer gets |
|---|---|
| Bill discount | 20% off the monthly electricity bill |
| Term | Up to 20 years |
| Clean content | 100% of usage matched to renewable generation |
| Upfront cost | None — no equipment, no installation |
| Who provides it | Investor-owned utilities (incl. SDG&E) and community choice aggregators |
03Who qualifies in San Diego County
Eligibility targets the households the program is meant to help. Broadly, a customer qualifies if they are a residential customer of a participating provider, meet the income criteria, and live in a disadvantaged community — generally one of the most pollution-burdened census tracts in the state as identified by California's environmental-screening tool — or close enough to one to be served by an eligible project. The aim is to direct the benefit to the neighborhoods carrying the greatest cumulative environmental and economic burden.
In San Diego County, the program reaches customers of San Diego Gas & Electric and of San Diego Community Power, the region's community choice aggregator, which offers its version under the name Solar Advantage. Eligible residents are typically those located in — or within a few miles of — a qualifying community served by an enrolled project. For a region with significant pollution-burdened areas, particularly in the county's older urban and industrial corridors, that footprint covers a meaningful share of the households who stand to benefit most.
04Why it needs utility-scale clean energy
Here's the part that connects directly to what we do. A program that promises thousands of households a 20% discount and 100% clean power needs a large, steady, low-cost supply of clean generation to draw on. You cannot deliver that from rooftops alone — the whole point is to serve people who don't have usable rooftops. It has to come from utility-scale projects: solar and storage built at a size and cost that makes a durable, decades-long discount financially possible.
This is the quiet link between big clean-energy infrastructure and household-level equity. The same utility-scale economics that make a hybrid solar-and-storage campus competitive on the wholesale market are what allow programs like DAC-GT to offer a real discount without a subsidy treadmill. Cheap, abundant clean generation isn't just an abstraction on a developer's spreadsheet — it's the raw material that lets a program put money back in a working family's pocket every month. Build clean power at scale, and you create the supply that community-benefit programs depend on.
A 20% discount for thousands of families has to be generated somewhere. Utility-scale clean energy is the supply that makes household-level equity programs financially real.
05The broader benefit
The bill discount is the headline, but it isn't the only benefit flowing to these communities. The same disadvantaged neighborhoods that DAC-GT serves are the ones that have borne the worst of fossil-fuel pollution — the asthma, the particulate-heavy air, the plants and freeways sited in their backyards. Every megawatt-hour of clean generation that displaces fossil combustion improves the air those families breathe, and the shift toward clean power is also a shift away from the pollution sources concentrated in exactly these areas.
So the program does two things at once. It lowers bills for households that need the relief, and it's part of a larger transition that cleans up the air in the places that have been breathing the dirtiest. That combination — economic relief and environmental repair, aimed at the same communities — is what makes DAC-GT one of the more thoughtful pieces of California's clean-energy framework, and one worth understanding for anyone who cares about who actually benefits from the transition.
What it means for Solyx
Programs like DAC-GT only work if there's enough affordable, utility-scale clean generation to supply them — which is exactly what we build. We see our hybrid solar-and-storage campuses as more than wholesale assets: the clean power they produce is the kind of supply that lets community-benefit programs deliver real bill savings and cleaner air to the households that need both most. Equity at the household level and clean infrastructure at the grid level are two ends of the same system.