HarmonyGrid

Partners & investors

The residential energy coordination layer is still unbuilt. We're building it.

Project Flux operates two go-to-market brands on one product layer: GrooveGrid for small landlords (1–24 units) and HarmonyGrid for property-management firms (25+ buildings). This page is for channel partners and early-stage investors.

Investors — get in touchPartners — get in touch

Market thesis

Four forces have converged — and no one has shipped the coordination layer.

The residential distributed-energy stack exists, but it's fragmented vertically (OEM apps, utility portals, aggregator dashboards) and horizontally (single-property tools, no portfolio view). Landlords and property managers buy the devices, then lack the operating system.

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.

Rising residential rates

US residential average reached $0.1745/kWh in January 2026 (EIA Table 5.6.A). New England averages $0.2936/kWh — a 68% premium. Landlords increasingly feel this on common-area meters and all-bills-paid leases.

EIA EPM Table 5.6.A, Jan 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.

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. BPS reporting and aggregated VPP revenue. 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) model a 10-unit building by region. Annual impact runs roughly $1,973–$4,899 (NE, no batteries) to $23,913–$26,839 (NE, 5 Powerwall 3 batteries on ConnectedSolutions), 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

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

Live

Cloud 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 2–3

SavingsAttributionService + 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

Future

Full 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)
  • 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.ai

Partners

OEMs, aggregators, utilities, PMS vendors, and data providers. We reply within one business day.

partners@harmonygrid.ai