Solar, Battery & Generator Microgrids

Regent5 designs and integrates estate-scale energy systems across Northern California, coordinating large solar systems, whole-home and estate battery storage, residential UPS, standby generators, load management, and microgrid controls with the property's electrical infrastructure. As a licensed C10 electrical contractor, Regent5 plans these systems around service capacity, distribution, single-phase or three-phase power, multiple voltages, and long-term serviceability.

What a Home Microgrid Actually Is

For Bay Area luxury residences and large estates, a residential microgrid coordinates utility service with on-site solar, battery storage, standby generation, UPS systems, intelligent load shedding, and controlled electrical loads so prioritized parts of the property can remain operational during a grid outage. Regent5 engineers the load analysis, source sizing, transfer and islanding strategy, distribution, protection, controls, and operating priorities as one estate-level system—coordinated with architects, builders, mechanical teams, security, networking, pumps, EV charging, and additional structures.

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Solar Within an Estate Microgrid

Regent5 designs and installs large residential solar systems as part of broader estate electrical and resilience planning in San Francisco and across the Peninsula. Array layout, roof and site conditions, service capacity, battery strategy, backup generation, distribution, controls, future EV and mechanical loads, and architectural visibility are considered together. For custom homes in Atherton, Woodside, Palo Alto, Hillsborough, Los Altos Hills, and similar communities, solar can be coordinated with the architecture and utility infrastructure instead of treated as a separate rooftop product.

Talk through a solar design for your property

Battery Storage and Residential UPS

Regent5 designs and integrates estate-scale battery storage and residential UPS systems around the property's actual load profile, desired runtime, service capacity, solar production, generator strategy, equipment location, and long-term service plan. Depending on the project, platforms can include Tesla Powerwall, FranklinWH, Savant Power, SPAN-compatible energy management, and other engineered solutions. The goal is not simply more battery capacity; it is a resilient electrical architecture that can prioritize refrigeration, security, networking, gates, pumps, lighting, selected HVAC, and other critical estate loads while managing larger discretionary loads intelligently.

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Standby Generators for Extended Outages

Standby generators provide an endurance layer for extended outages and can be coordinated with battery storage and compatible microgrid controls. The design accounts for generator capacity, fuel, transfer equipment, load priorities, ventilation, sound, service access, site planning, and architectural screening. On larger Peninsula estates and hillside properties, generator placement and utility infrastructure are planned early with the architect and builder so resilience equipment remains serviceable without becoming a visual feature of the home.

Our electrical and engineering work

One System, Orchestrated

A resilient power system needs an operating strategy, not a collection of disconnected products. Compatible platforms such as Savant Power can provide circuit-level monitoring and load management, while battery, solar, generator, EV charging, and electrical distribution are engineered around the property's available power and priorities. Regent5 coordinates these relationships with automation, security, networking, lighting, and mechanical systems where supported by the selected equipment, creating a unified energy-management approach for both normal operation and PG&E outages.

Whole home automation platforms

Electrical Infrastructure Comes First

Luxury residential microgrid engineering begins with the electrical infrastructure: service capacity, load calculations, transfer equipment, panels and subpanels, utility interconnection, protection, inspections, and future electrification. As a California C-10 electrical contractor, Regent5 coordinates these requirements with solar, batteries, standby generators, UPS, smart electrical panels, load shedding, EV charging, single-phase or three-phase distribution, and multiple voltage requirements. This is especially important for complex Bay Area custom homes where energy codes, PG&E coordination, architectural constraints, and long-term serviceability must be solved together.

Panel upgrades and PG&E coordination

Designed for the Outage You Hope Never Comes

The measure of a microgrid is a night nobody remembers: the power failed at two in the morning, the house switched itself, the refrigeration and the security and the medical equipment never blinked, and the family read about the outage at breakfast. That standard is reached in the design phase, in load calculations and switching logic and fuel planning, long before hardware arrives. Contact us to walk your property and talk through what resilience should mean for your home, or start with the design questionnaire on our smart home planning guide.

Start the smart home planning guide

Frequently Asked Questions

Do I need whole home backup or just the essentials?

That is the first design question, and the honest answer is a load calculation. Some homes back up everything; most prioritize refrigeration, networking, security, medical equipment, well or septic pumps, and selected comfort loads. We size the batteries and generator against the real numbers rather than a brochure.

How long can batteries carry a home?

It depends on usable storage capacity and the loads being served. A large home can consume very different amounts of energy depending on HVAC, pumps, refrigeration, lighting, networking, security, EV charging, and other loads. Regent5 sizes estate battery systems from the actual load profile and desired runtime, then determines whether solar, load management, a standby generator, or UPS should be part of the resilience strategy.

Do I need solar to have battery backup?

Not necessarily. Many battery systems can charge from the grid and provide backup without solar, while solar can replenish compatible storage during longer outages when system design and operating conditions allow. Generator interaction varies by battery platform and system topology, so Regent5 verifies compatibility and designs the transfer, charging, and control strategy for the specific equipment rather than assuming every source can operate together.

Should I have both batteries and a generator?

For estates that need extended resilience, batteries and a standby generator can complement one another because they address different operating needs. Batteries can provide quiet backup and rapid response, while a properly designed generator can extend available energy during a prolonged outage. Whether the generator can recharge batteries or operate in a coordinated sequence depends on the selected equipment and approved system design, so compatibility is engineered project by project.

Who handles the permits and PG&E?

We do. As a C10 licensed electrical contractor, CSLB 1033103, we design to code, pull our own permits, manage inspections, and coordinate the PG&E interconnection from load evaluation through the final connection.

Related Energy and Electrical Topics

The energy and electrical disciplines behind resilient homes, each covered in depth.

Starting a project, or need help with planning one?

Regent5 now provides personalized smart home consultations, designed to kick-start your project swiftly and efficiently. Simply provide us with your contact information and a brief outline of your interests, and we will pair you with the right specialist for your project.

Regent5 Head Office
and Experience Center

1300 Industrial Rd, Ste #12
San Carlos, CA 94070

(650) 242-5745

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