Prime Microgrid engineers private power infrastructure for homes, estates, and properties throughout the 48 contiguous United States. Systems may integrate onsite generation, energy storage, backup generation, intelligent controls, grid interaction, and load management according to the property's electrical demand, site conditions, and resilience goals.

Serving homeowners, estates, and properties throughout the contiguous United States; Alaska and Hawaii are not currently served.

What Is a Home Microgrid? Whole-Home Backup Microgrid Cost Guide Microgrid vs Generator Battery Storage Service Territory
Residential microgrid overview showing coordinated power system layers
Flagship Video

What Is a Home Microgrid?

See how onsite generation, battery storage, backup power, grid protection, intelligent controls, and property loads work together as private power infrastructure.

Watch the overview

Private Power Infrastructure

Prime Microgrid engineers private residential power infrastructure — integrating customer-sited generation, energy storage, backup generation, intelligent controls, and utility-grid interaction into one coordinated system. The result is whole-property power continuity: everything stays on, whether the grid is up or down.

What we engineer for homeowners:

  • Engineer private residential power infrastructure for whole-property continuity
  • Onsite generation and battery storage integration
  • Design intelligent controls that manage all power sources automatically
  • Protect estates, coastal homes, rural properties, and large custom homes
  • Keep everything operating through storms, extended outages, and utility failures
  • Size every system around your property's actual electrical demand
  • Support homes with guest houses, workshops, pools, wells, EV charging, and complex loads

Why property owners choose Prime Microgrid:

  • 15+ years engineering private power infrastructure
  • 58,000+ documented system operating hours across installed Prime Microgrid projects.
  • Estate, coastal, and rural property expertise
  • Customer-sited generation, storage, backup, and control integration
  • Every system custom-designed — no templates, no generic packages
  • Privacy-first process for high-value homes and properties
The Problem

The Grid Is Public.
Your Power Doesn't Have to Be.

Your home is connected to public infrastructure you do not control — aging transmission lines, overloaded substations, and a grid built for a different era.

Consumer backup products protect a few selected circuits. Private power infrastructure keeps your entire property operating.

Estates, coastal homes, rural properties, and large custom homes require private power infrastructure engineered around their actual electrical demand.

Everything stays on. That's the standard.

Request a Private Energy Review

Reviewed by technical professionals, not a call center. No lead resale.

What We Build

Not Just Backup Power.

Solar companies sell panels. Generator companies sell generators. We engineer the private power infrastructure that makes them all work together.

Private Power Infrastructure

Customer-sited generation, energy storage, backup generation, and intelligent controls — engineered as one coordinated system around your property's actual electrical demand.

Whole-Property Continuity

HVAC, refrigeration, lighting, security, wells, home offices, EV charging, and every connected load — designed to stay on through extended outages.

Intelligent Controls

Automatic source switching, load management, and outage response — no manual intervention, no circuits left behind.

Built for Your Property

Estates, coastal homes, rural properties, second homes — grid-tied, off-grid, or hybrid, sized to your actual demand.

Our Standard

Engineered,
Not Installed.

Most firms install equipment. We engineer private power infrastructure around your property's actual electrical demand, site conditions, outage goals, and equipment selection — so everything stays on.

01

Designed for whole-property power continuity, not partial-circuit backup.

02

Engineered for extended outage protection, not just sunny-day production.

03

Integrates customer-sited generation, energy storage, backup generation, and intelligent controls.

04

Sized to your property's full electrical demand, not a generic equipment package.

Client Confidentiality

Private Power Infrastructure. Private by Design.

Prime Microgrid designs private residential energy infrastructure that can combine onsite generation, battery energy storage, backup generation, intelligent energy management, and whole-home power continuity.

For many homeowners, estate owners, rural properties, and resilience-focused properties, information about power generation, stored-energy capacity, backup capability, system architecture, and equipment locations can be sensitive.

Prime Microgrid does not publish client names, exact property locations, recognizable site photographs, system layouts, generation capacity, storage capacity, or identifying project details without client authorization.

Confidentiality is part of the engineering process—not an afterthought.

That is why Prime Microgrid case studies may generalize client identities and locations while retaining useful technical information about generation, storage, controls, resilience, and project objectives.

Private Property. Private Infrastructure. Private by Design.

Confidential inquiries welcome.

Property information, energy requirements, backup objectives, onsite generation requirements, and system-design discussions are treated as private client information.

Request a Confidential Private Energy Evaluation
Residential microgridsMicrogrid FAQClient confidentiality principles
Selected Projects

Engineered residential
power systems.

Scope

  • 10,000+ sq ft waterfront residence with detached structures
  • Full-load coverage across all circuits — HVAC, pool systems, guest house, and auxiliary buildings operating simultaneously

Challenges

  • Peak demand exceeding 30 kW with simultaneous load activation across multiple structures
  • Battery capacity required to bridge high-load demand windows prior to generator engagement
  • Coastal salt-air environment requiring hardened component selection and enclosure design
  • Load variability between seasonal occupancy profiles and peak-use periods

System Configuration

Solar Array28 kW DC
Battery Storage120 kWh
Inverter System3 × 12 kW hybrid inverters (36 kW total)
Generator24 kW automatic standby
Transfer & ControlsFully automated load management

Engineered Solution

Engineered a unified microgrid architecture integrating solar generation, high-capacity battery storage, and generator redundancy as coordinated energy sources. Battery capacity sized specifically to sustain full-property load during peak demand windows before generator engagement — avoiding generator cycling under variable load conditions. Generator integration structured as secondary redundancy rather than primary supply to maintain system stability during rapid load transitions. Real-time load balancing and automated source switching ensure stable operation during simultaneous high-load demand and grid loss events, without operator input.

Result

Property maintains uninterrupted full-home operation under all grid conditions. System maintains stable operation across full-load demand conditions without performance degradation — including simultaneous peak load across all structures. Automated failover executes with no manual intervention required.

"The system operates exactly as designed. We no longer think about outages."

Scope

  • 4,500 sq ft primary residence with well, heating, and critical infrastructure loads
  • Full-home circuit coverage with prioritized load architecture for extended runtime

Challenges

  • Multi-day outages with no reliable utility restoration timeline
  • Well pump startup loads creating high instantaneous demand spikes incompatible with battery-only support
  • Propane fuel logistics constraining generator runtime — system required to minimize generator dependency
  • Heating system load requirements varying significantly across seasonal demand profiles

System Configuration

Solar Array18 kW DC
Battery Storage60 kWh
Inverter System2 × 12 kW hybrid inverters (24 kW total)
Generator20 kW propane
Load ManagementPriority-based with full-home capability

Engineered Solution

Developed an integrated power system architecture combining solar generation, battery storage, and propane generator backup — configured for long-duration autonomous runtime with minimized fuel consumption. System configured to prioritize instantaneous load support from battery during demand spikes, reducing generator engagement to extended-duration scenarios only. Intelligent load prioritization distributes energy across critical and non-critical circuits dynamically, adjusting source contribution based on real-time demand and battery state of charge. Designed for continuous operation without reliance on utility stability or predictable restoration timelines.

Result

Property operates fully independently across multi-day outage scenarios with efficient multi-source energy coordination. Configured to support complete property load without circuit-level limitations — engineered for non-standard demand conditions that vary by season and occupancy. Runtime capability maintained across extended outage durations without load compromise.

"We needed reliability. Now the system just works — no matter the conditions."

Scope

  • Retrofit of existing 11 kW DC grid-tied solar system
  • Full backup integration engineered within existing infrastructure constraints

Challenges

  • Existing grid-tied inverter architecture fundamentally incompatible with islanding — producing zero output during outages despite active solar generation
  • Battery sizing constrained by existing electrical panel capacity and available installation space
  • Inverter upgrade required without decommissioning existing solar infrastructure or disrupting roof penetrations
  • Control system integration required to manage three distinct system states: grid-tied, hybrid, and full-island

System Configuration

Existing Solar11 kW DC
Added Battery40 kWh
Inverter UpgradeHybrid inverter with islanding capability
Backup IntegrationAutomatic transfer and system controls
System ControlSmart load management and outage response

Engineered Solution

Re-engineered the system architecture from grid-tied to an integrated microgrid with battery storage and a three-state control architecture. The system was configured to prioritize onsite generation across operating modes and support load during grid absence. Transfer time and supported loads depend on the selected equipment, commissioned design, and operating conditions. Multi-source coordination manages generation variability, battery state, and load demand.

Result

Home maintains full power during grid outages while leveraging existing solar generation — with automated system response and zero reliance on manual switching. System maintains stable operation across full-load demand conditions without performance degradation, configured to support complete property-level power requirements across grid-connected, hybrid, and islanded operating modes.

"We already had solar, but now it actually works when we need it."

Solutions

System Types

View All Systems
Flagship

Estate Microgrid Systems

Whole-property power continuity with automatic outage protection.

Retrofit

Battery Retrofit Systems

Add energy storage and intelligent controls to existing generation.

Hybrid

Hybrid Generator Systems

Extended outage protection with coordinated backup generation.

Off-Grid

Off-Grid Systems

Complete energy independence from utility infrastructure.

Methodology

How It Works

A structured engineering process — not a standard installation. See our full process →

01

Consultation

Full property assessment — electrical demand, outage goals, energy usage, utility service, and long-term resilience needs.

02

System Design

Custom architecture integrating customer-sited generation, energy storage, backup generation, and intelligent controls around your property's actual loads.

03

Build Planning

Engineering, permitting, equipment procurement, and project scheduling — coordinated end to end.

04

Installation & Commissioning

Physical installation, whole-property load testing, automatic failover verification, and full system handoff.

System Intelligence

How Your Microgrid Works

One controller monitors every source, every load, and every decision — automatically.

Solar
Generator
Grid
Microgrid
Controller

Monitors all sources in real time. Makes automatic decisions about power flow and load prioritization.

HVAC
Refrigeration
Lighting
Security
Internet
EV Charging
Wells & Pumps
All Loads

When the Grid is UP

The controller charges storage off-peak, discharges during expensive hours, and keeps the system ready for automatic outage protection.

Learn more

When the Grid FAILS

The controller isolates your property instantly, powers from storage and generation, and dispatches backup only when needed. Everything stays on.

Learn more

The Controller Continuously Decides:

Every second, your microgrid controller evaluates these decisions automatically.

Where is power coming from right now? (Customer-sited generation, energy storage, grid, or backup generation?)

Which loads have priority? (HVAC and refrigeration before pool heating — though the goal is everything stays on.)

Is the battery charging or discharging? At what rate?

Should the generator start, run, or shut down?

Is the grid available for import? At what rate?

Are all systems healthy and ready for an outage?

This isn't just equipment at the same address. Intelligent controls are the brain that coordinates every source, manages every load, and keeps your property powered — automatically.

See what this looks like for your property
Relevance

Designed for Homes
That Cannot Go Dark.

Estates and large custom homes with multiple service panels, guest houses, workshops, pools, or elevator systems.

Coastal and waterfront properties exposed to hurricanes, nor'easters, and extended storm-driven outages.

Rural homes with wells, long utility runs, or unreliable grid service — where losing power means losing water.

Second homes and vacation properties where owners need power continuity without being present to manage it.

Families who cannot afford to lose power for hours or days — home offices, medical equipment, security systems, and daily life.

FAQ

Common Questions

Everything Stays On.

Customer-sited generation + energy storage + backup generation + intelligent controls = whole-property power continuity.

Request System Design

Your information stays with Prime Microgrid. We do not sell your request to contractor networks or lead marketplaces.