Fragmented DER landscape
Tesla, Enphase, Franklin, SolarEdge, Ecobee, Nest, and dozens of aggregators all ship their own apps. Nothing stitches them together across a building portfolio.
Partners & investors
Property-team energy coordination is still mostly hand-rolled. We're building the layer underneath.
Project Flux ships two product layers — Flux EQ (signal) and Flux Insight (analytics) — under two go-to-market brands: GrooveGrid for small landlords (1–24 units) and HarmonyGrid for property-management firms (25+ buildings). This page is for channel partners — Mass Save-style programs, contractors, weatherization providers, heat-pump installers, utilities — and early-stage investors.
Market thesis
Four forces have converged — and no one has shipped the coordination layer for property teams.
The signals exist, but they're fragmented across utility portals, OEM apps, aggregator dashboards, contractor reports, and program portals. Landlords and property managers end up running the patchwork manually — across owner-paid, tenant-paid, master-metered, submetered, common-area, and vacant-unit accounts. Flux EQ stitches the signals; Flux Insight turns them into decisions; HarmonyGrid is what the property team uses.
Rising residential rates
US residential average reached $0.1883/kWh in April 2026 (EIA Table 5.6.A). New England averages $0.2949/kWh — a 57% premium. Landlords increasingly feel this on common-area meters and all-bills-paid leases.
EIA EPM Table 5.6.A, Apr 2026 ↗BPS compliance momentum
Chicago, Washington, Oregon, and NYC LL97 now all have active or imminent building performance standards. Property managers need automated compliance reporting, not per-building manual submissions.
VPP formalization
The North American virtual-power-plant market reached 37.5 GW of behind-the-meter flexible capacity in 2025, up 13.7% year-over-year, with residential assets now roughly one-third of enrolled capacity. FERC Order 2222 lowers the wholesale-market aggregation floor to 100 kW as ISOs implement it (ISO-NE targets Nov 2026; NYISO by end of 2026) — a mid-size portfolio becomes a market-participating asset, not just a savings project.
Wood Mackenzie 2025 VPP report; FERC Order 2222 explainer (as of Jul 2026) ↗Target markets
One platform, two go-to-market motions.
GrooveGrid — small landlords
Owner-operators with 1–24 properties. Consumer-grade UX. Self-serve onboarding via Green Button or Bayou. Mass Save, HEAR, HEAT Loan surfaced prominently. Price: $19.99/mo per property.
groovegrid.ai →HarmonyGrid — property management firms
PM firms and owner-operators running 25+ buildings. Yardi, AppFolio, Buildium integrations. Portfolio visibility, capital planning, reporting-ready documentation, and utility/efficiency program coordination. Dedicated account management. Price: $99–$149/site/month with volume bands.
harmonygrid.ai (this page) →Unit economics
A realistic view of savings pool and take-rate.
GrooveGrid ARPU
$19.99
/ property / month
HarmonyGrid ARPU
$99–$149
/ site / month
Partner revenue share
TBD
structure under discussion
Realistic per-portfolio savings pool
Our home-page ROI tables (Elijah 4B, rates refreshed Jul 2026) model a 10-unit building by region. Annual impact runs roughly $1,982–$4,916 (NE, no batteries) to $8,857–$11,791 (NE, 5 batteries on ConnectedSolutions at 2026 rates), with Midwest and West Coast in between. This is the pool from which both subscription and potential partner revenue shares are drawn. See portfolio tables →
Gross margin targets: Cloud Tier 0 ≥70% (SaaS-typical); DER orchestration tier ≥55% (hardware-coordination overhead). Figures pre-launch and subject to customer-verified attribution in Sprint 2–3.
Partner stack
Who we integrate with today — and what's on deck.
Battery OEMs
Hardware we optimize. Telemetry + dispatch APIs required.
- Tesla (Powerwall 3)·Integrated
- Enphase (IQ Battery)·In development
- Franklin (aPower)·Targeted
Aggregators / VPP
Programs that pay our customers for dispatch. We enroll and report.
- Eversource ConnectedSolutions·Integrated
- Renew Home (CA / NY / TX)·In development
- Leap·Targeted
Utilities
Rate and tariff data, DR program coordination, Green Button data feeds.
- Eversource·Integrated
- National Grid·In development
- Pacific Gas & Electric·In development
- ComEd·Targeted
- Green Mountain Power·Targeted
Property management systems
Your system of record for buildings, owners, and accounting cost centers.
- Yardi (Voyager / Breeze)·Integrated
- AppFolio·Integrated
- Buildium·In development
Data layer
Utility bill + interval data brokers. Required for baseline and counterfactual.
- Bayou Energy·Integrated
- Arcadia / Green Button Connect·Integrated
Efficiency & rebate programs
Mass Save-style multi-utility programs and state efficiency administrators. Coordination, documentation, and rebate eligibility surfacing.
- Mass Save (MA)·Targeted
- Energy Trust of Oregon·Targeted
- NYSERDA·Targeted
- Focus on Energy (WI)·Targeted
Contractors & weatherization
Air sealing, insulation, duct sealing, and envelope work. Hand-offs and before/after evidence for program rebates.
- Regional weatherization networks·Targeted
- BPI-certified contractor partners·Targeted
Heat pump & electrification
Heat pump retrofits, water heater swaps, and electrification program partners.
- HEAR / HEEHRA-eligible installers·Targeted
- Heat-pump OEM partner programs·Targeted
Community programs
Community solar, low-income weatherization, fire-zone resilience, and PSPS programs.
- Regional community solar admins·Targeted
- Income-qualified weatherization·Targeted
Status labels: Integrated — live in production for at least one customer. In development — active engineering, target ship this quarter or next. Targeted — on the roadmap with validated demand, no commitment date.
Architecture roadmap
Three phases, labeled honestly.
We publish our own roadmap because the SavingsAttributionService / BaselineEngine components underpin every savings claim we make. Pretending they're done would be a worse look than labeling them in-progress.
Phase 1
LiveCloud Tier 0
Utility-data-only optimization. No on-site hardware. Suitable for the bulk of thermostat + small battery portfolios.
- Green Button Connect / Bayou ingest
- Regional benchmark baselines (EIA, ACEEE)
- ConnectedSolutions enrollment reporting
Phase 2
Sprint 2–3SavingsAttributionService + BaselineEngine
Customer-specific baselines and attribution. Four-lever savings breakdown per building, backed by CalTRACK methodology.
- Weather-normalized regression per building
- Four-lever attribution (Consumption, TOU, Solar, VPP)
- Monthly actuals-vs-estimate report, quarterly recalibration
Phase 3
FutureFull DER Orchestration
Real-time dispatch of batteries, thermostats, and EV charging across the portfolio. Multi-program bidding and DR-market participation.
- Real-time battery dispatch via OEM APIs
- Multi-program bidding (ISO DR, utility DR, VPP aggregator)
- FERC Order 2222 aggregation participation as ISOs implement (100 kW floor; ISO-NE targets Nov 2026)
- EV charging coordination for common-area chargers
How we substantiate savings.
Every dollar and percent on this site links back to the methodology page — baseline, counterfactual, attribution, sensitivity, CalTRACK alignment.
Read the methodology →Honest disclosures
- Early stage. No customer-verified savings data yet.
- Estimates based on regional benchmarks (EIA, ACEEE) with CalTRACK methodology. See /methodology.
- SOC 2 Type I in readiness engagement — not yet attested.
- Partner revenue-share structures are under discussion, not finalized.
Investors
Early-stage capital conversations, diligence packages, and intros from people who know us.
investors@harmonygrid.aiPartners
OEMs, aggregators, utilities, PMS vendors, and data providers. We reply within one business day.
partners@harmonygrid.ai