Portfolio platform · 25+ buildings

Your portfolio's own energy grid — for the decisions only you can make.

HarmonyGrid is a private, customer-side energy grid for property teams: one decision surface across every building, meter, utility account, program, project, and capital plan in your portfolio. Not utility grid control — a portfolio energy grid you authorize, that ties owner-paid, tenant-paid, master-metered, submetered, common-area, and vacant-unit loads to the choices your operations, capital, and reporting teams already own. Powered by Flux EQ for signal and Flux Insight for analytics.

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Building performance, resident comfort, fewer surprises. Read-mostly by default, customer-authorized data, least-privilege integrations, tenant-isolated. No tenant control, no surveillance, and no claim to operate the utility grid — just a clear picture of how your buildings actually run, prioritized upgrades, and documentation that's ready when an auditor, a lender, or a utility program asks. [How we calculate →]

Portfolio estimates reflect portfolio-weighted averages across mixed utility responsibility (owner-paid, tenant-paid, master-metered, submetered, common-area, and vacant-unit loads). Actual results vary by utility territory, equipment profile, occupancy, and which accounts the property team controls. See our methodology.

What HarmonyGrid does

A portfolio energy grid, end to end.

HarmonyGrid is your private, customer-side decision grid: one surface across buildings, meters, utility responsibility, programs, projects, and capital plans — powered by Flux EQ (signal) and Flux Insight (analytics). Four capability pillars. One data model. Customer-authorized, read-mostly, audit-ready by default. Built for how operations, capital, and reporting actually work — not for a hypothetical AI demo and not for utility grid control.

Portfolio visibility (Flux EQ)

Flux EQ is the data-collection and signal layer. It brings utility, meter, device, building, and lease/property signals into one portfolio view — so property teams can see what's actually happening across owner-paid and tenant-paid accounts, master-metered and submetered buildings, common-area loads, and vacant units.

Utility + interval data across every account the portfolio pays or coordinates
Meter, device, and building signals alongside lease/property context
Optional resident-opt-in signals where programs require them — never surveillance

Insight & recommendations (Flux Insight)

Flux Insight turns those signals into portfolio-level recommendations: where the savings opportunities are, where resident-cost pressure is building, which buildings should be upgraded first, and what's needed to coordinate with utility and efficiency programs.

Savings opportunities and upgrade prioritization across the portfolio
Resident-cost pressure and comfort-risk signals, no individual tracking
Program coordination: Mass Save-style rebates, weatherization, heat pumps

Comfort-first energy performance

We lead with building performance and resident comfort, not setpoint control or behavior nudges. Fewer surprise bills, fewer hot/cold complaints, and a clearer picture of how capital projects actually land.

Comfort and performance indicators that make sense to ops and residents alike
Capital planning: what to replace, when, and what payback looks like
Operational alerts when a building drifts — before a resident notices

Reporting-ready documentation

Benchmarking ordinances, lender ESG asks, utility-program paperwork, and board reviews all want the same underlying numbers. HarmonyGrid keeps them ready — versioned, sourced, and exportable — rather than assembled the week before a deadline.

Chicago Energy Benchmarking, WA Clean Buildings, OR BPS, NYC LL97
Auto-assembled from utility history via Green Button / Bayou
Evidence log retained for 7 years, every number linked to a source

Product architecture

A private portfolio energy grid. Powered by Flux EQ and Flux Insight.

HarmonyGrid is your customer-side energy grid: a private decision surface that ties buildings, meters, utility responsibility, programs, projects, and capital plans into one view your team controls. It is not utility grid control and doesn't claim to operate distribution assets — the wider grid-edge data world (utility AMI platforms in the Itron-style category, MDM systems, head-end systems, DERMS, and program administrators) is rich and important, and HarmonyGrid sits on the customer side of it, reading the signals you're entitled to and leaving the rest to the utility.

Underneath, two layers developed under Project Flux do the work: Flux EQ, the data collection / signal layer, and Flux Insight, the analytics and recommendations layer. Mention of third-party categories above is illustrative of the broader ecosystem; it does not imply partnership, endorsement, or direct integration.

Signal layer

Flux EQ

Collects the signals a portfolio actually has — without asking residents to install anything new. EQ stands for the equalization of every meter, device, and lease into one consistent view of how a building runs.

Utility accounts: owner-paid, tenant-paid, master-metered, submetered, common-area, vacant-unit
Meter and interval data via Green Button Connect, Bayou, and direct utility feeds
Device telemetry: thermostats, batteries, solar, EV chargers, common-area equipment
Building, lease, and property context from your PMS (Yardi, AppFolio, Buildium)
Optional resident signals — only when a program requires them and the resident opts in

Analytics layer

Flux Insight

Turns Flux EQ signals into things property teams can act on: where to spend capital, where residents are about to feel a bill spike, which buildings to enroll in which utility program, and what an auditor or lender needs to see.

Savings opportunities ranked by building and by lever
Resident-cost pressure signals — without surveilling individuals
Upgrade prioritization for HVAC, envelope, heat pumps, and electrification
Program coordination across Mass Save-style efficiency, weatherization, DR, VPP
Reporting readiness for benchmarking ordinances, lenders, and boards
Operational alerts when a building or asset drifts from expected performance

Plain-English version: Flux EQ is "what's actually happening," Flux Insight is "what to do about it," HarmonyGrid is the portfolio energy grid where property teams see both — read-mostly by default, customer-authorized data only, minimum necessary signals, building performance not personal behavior. Nothing about watching residents. Nothing about operating the utility grid. Everything about giving the operator a clear picture and fewer surprises.

Mixed utility responsibility

Real portfolios have six kinds of utility relationship. We handle all of them.

A property team rarely owns "the" utility bill — they own a patchwork. HarmonyGrid is built around that patchwork instead of pretending it's one clean meter. Owner-paid, tenant-paid, master-metered, submetered, common-area, vacant — each one matters for different decisions.

Scenario	Who pays	What HarmonyGrid does
Owner-paid utility account	Owner / management entity	Direct visibility into bills, rate, and consumption. Drives capital planning and program enrollment decisions.
Tenant-paid utility account	Resident on their own account	Aggregate, anonymized cost-pressure signal at the building level — never per-resident tracking. Optional resident-opt-in only when a program requires it.
Master-metered building	Owner pays one bill for the whole building	One account, many residents — every dollar of inefficiency is on the owner. HarmonyGrid surfaces the levers worth pulling.
Submetered units	Owner bills residents from submeter reads	Reconciliation, anomaly flags, and resident-cost-pressure signals without exposing individual usage to operators.
Common-area loads	Owner	Often the largest single line. Hallway lighting, elevators, pumps, common HVAC, EV chargers — all in one view.
Vacant-unit loads	Owner during vacancy	Easy to miss, easy to bleed money. Flux EQ flags vacant units running heat or cool, so the owner stops paying for empty rooms.

Resident-level signals are aggregated and consent-gated. Operators see building-level cost pressure and comfort risk, not individual thermostat behavior. The point is fewer surprises for everyone — not watching anyone.

Portfolio readiness — sized impact

Three regions. Non-overlapping math. Every line ties to a utility program or benchmark.

These tables model a 10-unit building representative of each territory — the kind of sized estimate Flux Insight produces for a real portfolio once Flux EQ has the signals. Energy cost reduction already folds in TOU optimization where applicable — we don't double-count. VPP/DR revenue is only shown where a real program pays (ConnectedSolutions, CenterPoint Indiana, Renew Home CA). See full methodology →

New England

10-unit portfolio — annual impact

Benefit	No Batteries	2 Batteries	5 Batteries
Energy cost reduction (8–15%)	$1,973–$3,699	$1,973–$3,699	$1,973–$3,699
Solar self-consumption (4 of 10 units)	$0–$1,200	$0–$1,200	$0–$1,200
VPP/DR (Powerwall 3, Eversource ConnectedSolutions)	$0	$8,776/yr	$21,940/yr
Total annual	$1,973–$4,899	$10,749–$13,675	$23,913–$26,839

Baseline: 10 units × 700 kWh/mo × $0.29/kWh = $24,360/yr. Battery: Powerwall 3 (13.5 kW) on Eversource at $325/kW/yr. Energy cost reduction does NOT double-count TOU arbitrage. Source: EIA Jan 2026, Eversource ConnectedSolutions 2026, ACEEE 2022 consumption benchmark. [How we calculate →]

Midwest (IL / ComEd)

10-unit portfolio — annual impact

Benefit	No Batteries	2 Batteries
Energy cost reduction (8–15%, flat rate)	$1,148–$2,153	$1,148–$2,153
VPP/DR (CenterPoint IN only; ComEd no program)	$0	$330/yr
Total annual	$1,148–$2,153	$1,478–$2,483

Baseline: 10 units × 700 kWh/mo × $0.1707/kWh = $14,339/yr. TOU arbitrage not available on standard ComEd residential tariffs. ComEd residential rate increases driven by transmission and capacity costs. [How we calculate →]

West Coast (CA / PG&E)

10-unit portfolio — annual + one-time

Benefit	Annual Recurring	One-Time Year 1
Energy cost reduction (8–15%)	$2,548–$4,784	—
VPP/DR (Renew Home, 5 enrolled households)	$1,000–$2,500/yr	—
SGIP rebate (2 batteries, ~$200/kWh)	—	$5,400 one-time
Total Year 1 ($3,548–$7,284 + $5,400)	$8,948–$12,684	—
Total annual (Year 2+)	$3,548–$7,284	—

SGIP general budget waitlisted in most CA territories as of early 2026. Equity Resiliency available for income-qualified / fire-zone properties at $1,000–$1,100/kWh. [How we calculate →]

SGIP availability: General budget is currently waitlisted in most California territories. Equity Resiliency budget is available for income-qualified households in high fire-threat districts or areas experiencing PSPS events. Contact CPUC or your local program administrator for current availability.

Programs & channel

We sit alongside the contractors, programs, and utilities you already work with.

HarmonyGrid is not a replacement for your weatherization contractor or your utility's efficiency program — it's the coordination layer that makes them all easier to work with. Fewer spreadsheets between rebate applications, fewer arguments about which building gets the next heat pump, fewer surprises at audit time.

Mass Save-style efficiency programs

Multi-utility efficiency programs (Mass Save, Energy Trust of Oregon, Focus on Energy, NYSERDA, etc.) reward portfolios that show up with documentation. HarmonyGrid keeps the documentation ready and surfaces which buildings qualify for which incentive.

Contractors & weatherization

Air sealing, insulation, duct sealing — the unglamorous stuff that actually moves the bill. We coordinate hand-offs with weatherization contractors and capture the before/after evidence the program administrator wants to see.

Heat pump & electrification

Heat pump retrofits, water-heater swaps, induction conversions. HarmonyGrid prioritizes which buildings to do first based on real consumption — not a generic equipment audit — and tracks post-install performance so the program rebate has substantiation.

Community programs

Community solar subscriptions, low-income weatherization, resilience programs in fire-zone or PSPS-impacted territory. We map portfolio buildings to the programs they actually qualify for.

Utility & efficiency program coordination

DR/VPP, demand-charge programs, time-of-use enrollment, EV-charger make-ready. HarmonyGrid is the portfolio-side counterpart to the utility's program staff — fewer phone calls, cleaner enrollment, faster reporting.

Integrations

Works with the systems your team already uses.

No double-entry, no custom spreadsheets. Flux EQ pulls signals from your PMS and utility providers; Flux Insight pushes program-coordination and dispatch schedules back out where they belong.

Yardi

Voyager / Breeze

AppFolio

Property Manager / Plus

Buildium

Core / Pro

Green Button Connect

utility data

Bayou Energy

utility data

Integration depth varies. Yardi and AppFolio: production connectors. Buildium: in development. Need something else? Our REST API covers the rest.

The wider grid-edge data world — utility AMI / head-end systems (e.g. the Itron-style category), MDM, DERMS, and program administrators — sits on the utility side of the line. HarmonyGrid reads what the customer is entitled to via consent-based feeds like Green Button Connect and Bayou; we don't imply partnership with, access to, or endorsement by those ecosystems unless a connector is listed above.

Trust and security

Enterprise-grade trust posture. Read-mostly by default.

HarmonyGrid is a customer-authorized portfolio energy grid — not a utility grid controller. Flux EQ holds the credentials and building-level signals you've explicitly authorized, Flux Insight runs analytics on the minimum necessary data, and the HarmonyGrid surface keeps it audit-ready for your team. We do not dispatch on the utility grid, and we do not collect personal-behavior data on residents — building performance only.

Procurement, security, and audit reviewers can request our control narrative, data-flow diagram, and integration scope under NDA.

SOC 2 — In progress

We are actively in a SOC 2 Type I readiness engagement. We do not yet hold a signed attestation. Our control narrative and current posture is available under NDA for enterprise procurement review.

Customer-authorized data

Every utility, meter, PMS, and device feed is connected on your authority and revocable by you. Nothing flows in until you say so.

Least-privilege integrations

Each connector requests only the scopes it needs to do its job. No blanket access, no shadow data pulls, no surprise refresh windows.

Tenant isolation

Per-customer logical isolation with per-tenant key separation. One portfolio's data is never co-mingled with another's in storage or in compute.

Minimum necessary signals

We read the smallest set of signals that produces a useful answer. Resident-level data is aggregated, consent-gated, and never used for behavioral profiling.

Read-mostly by default

HarmonyGrid is built to observe and recommend. Any write-back (program enrollment, dispatch schedule, work order) is opt-in, scoped, and logged.

No grid-control claims

We do not operate the utility distribution grid. We coordinate on the customer side with utility programs you're enrolled in — nothing more.

Auditability

Every credential access, data pull, recommendation, and export is logged with actor, scope, and reason — retained 7 years, exportable on demand.

Role-based access and SSO

Owner, property manager, technician, auditor — least-privilege by default. SAML 2.0 / OIDC SSO on the enterprise tier; SCIM provisioning on roadmap.

Encrypted at rest and in transit

AES-256 at rest, TLS 1.2+ in transit, per-tenant key isolation. Secrets stored in a managed KMS, rotated on schedule.

Building performance, not personal behavior

Operators see building-level cost pressure, comfort risk, and capital signal. They do not see individual thermostat behavior or resident routines.

Pricing

Per site. Per month. Volume bands, not mystery.

A "site" is one physical building (one utility meter anchor). Multi-building parcels are priced by the building count. All tiers below are indicative — final pricing depends on deployment scope and integration work. Contact us for an RFP.

25–99 sites

$149/ site / month

Entry portfolio tier. Flux EQ signal + Flux Insight analytics for portfolio readiness, capital planning, and reporting.

Portfolio visibility across owner-paid, tenant-paid, master, submeter, common-area, vacant accounts
Reporting-ready documentation (Chicago, WA, OR, NYC)
Yardi / AppFolio / Buildium connector
RBAC + audit logs

Request walkthrough

100–499 sites

$124/ site / month

Volume tier for regional PM firms. Dedicated CSM + SSO included.

Everything in 25–99
Dedicated account manager
SSO (SAML / OIDC)
Quarterly business reviews

Request walkthrough

500+ sites

$99/ site / month

National operator tier. Custom SLA, procurement review, white-glove onboarding.

Everything in 100–499
Custom SLA / uptime targets
Security review + SOC 2 package
Dedicated implementation team

Contact for RFP

Prices indicative. Final pricing subject to RFP scope and integration work. Typical implementation window: 30–60 days.

Ready to see your portfolio as one energy grid?

Tell us your building count, PMS, and utility territories — plus which accounts are owner-paid vs. tenant-paid, master vs. submetered. We send back a portfolio readiness picture within two business days, methodology included. Customer-authorized data only, scoped to what you ask us to read.

Request portfolio walkthrough Read methodology