AR season is coming. Prep your electrical.
Marin's atmospheric river season runs late fall through early spring. Electrical prep before the season is much cheaper than emergency response during one.
By Steven Lockhart · Reviewed by Alex Towery, C-10 #989290
Updated 2026-06-16
Atmospheric river electrical preparation for Marin homes: (1) Whole-home surge protector installed (catches surges from PG&E line events during storms). (2) Backup generator or battery storage tested and ready (if installed). (3) Panel inspection (check for any existing moisture intrusion, corrosion, or aged components). (4) Exterior outlet weather-resistant covers and GFCI verified. (5) Service entrance components inspected (weatherhead, mast, riser, seals). (6) Trees and limbs trimmed away from service drop and overhead lines. (7) Emergency contact list — PG&E, electrician, insurance — accessible. Best timing: October before season starts.
01What atmospheric rivers do to electrical systems.
Atmospheric rivers concentrate intense rainfall and wind on Marin over 12-72 hour periods. The electrical effects: surge events when wind takes down or damages PG&E lines (sudden disconnects and reconnects produce surges across the system); outages when local distribution lines fail or are de-energized for safety; water intrusion at service entrance, exterior outlets, and panel locations that weren't fully weatherized; tree damage to service drops as discussed in adjacent clusters.
The prep agenda is two-part: harden the system against the events that will happen (surges, outages, water exposure) and reduce the probability of damage from preventable causes (tree management, weatherproofing). Both halves matter. A home with whole-home surge protection plus a tested standby generator can ride through AR events with minor inconvenience. A home without those protections may face appliance damage, perishable food loss, or worse during the same event.
02Pre-season checklist for Marin homeowners.
Surge protection
Whole-home surge protector at the main panel (Type 2 SPD) plus point-of-use surge strips for electronics and sensitive equipment. Whole-home install $400-$800 typical including the device. Surge protectors degrade over time and after major surge events — replace per manufacturer recommendation (typically 5-7 year service life with normal exposure).
Generator/battery readiness
If standby generator installed: annual service done? Battery good? Fuel tank full? Run a test transfer (load test the generator under real-world conditions) before the season. If battery storage: check state of charge, schedule, and notification settings. If portable generator: tested, fueled, transfer switch operational (and please, never backfeed through an outlet — that's an electrocution risk to PG&E workers).
Panel and service entrance inspection
Visual inspection of panel for any corrosion, moisture marks, or breakers showing signs of stress. Inspection of weatherhead and mast for any damage or weakness. Riser conduit fittings sealed against water intrusion. Exterior outlets verified GFCI-protected and weather-resistant covers in place. Cost for full inspection $200-$400; remediation scope varies.
03When to schedule prep work.
Optimal window: late August through October before AR season ramps up in November. Demand for electrical work spikes in November-February (during and after storm events) — booking before the season ensures availability and avoids the post-event rush. Prep work cost is predictable and budgetable; emergency response cost during a storm event is higher and less convenient.
If you're already in season and didn't prep: still worth doing the critical items. Surge protection install is fast (2-4 hours). Tree trim where lines pass through canopy is fast (depending on tree count). Even partial prep mid-season is better than none. We schedule prep work year-round; the November-February peak just means longer lead times.
Common questions.
Is whole-home surge protection really worth it?
Yes, for Marin. Atmospheric river events plus PG&E line work routinely produce surge events on the distribution system. Modern homes have significant investment in surge-sensitive electronics (TVs, computers, appliances with electronic controls, HVAC systems with smart thermostats, LED lighting drivers). A single severe surge event can damage thousands of dollars of equipment. Surge protector cost is $400-$800 installed; prevents that scenario. Strong cost/benefit.
Do I need a generator?
Depends on your tolerance for outages and any medical/critical needs. Most Marin homes manage 8-24 hour outages with inconvenience but no real harm. Homes with medical equipment, vulnerable occupants, work-from-home dependencies, or just strong outage aversion benefit from standby generator or battery storage. Investment is significant ($8,000-$25,000+ depending on system) but pays back in resilience over years of ownership.
What's the cheapest single thing I can do for storm prep?
Whole-home surge protector. Best dollar-for-dollar prep investment for most Marin homes. Single visit, fast install, durable protection. Tree trimming is next — but cost scales with tree count and access. Surge protection is the universal low-cost high-value step.
Can I do prep work myself?
Some yes, some no. Yes for: clearing exterior outlets of debris, testing GFCIs (monthly is good practice), keeping flashlights and battery backup ready, inventorying surge-sensitive equipment. No for: panel work, surge protector installation, generator hookup or modification, service entrance inspection. Anything inside the panel or on the service entrance is licensed-electrician scope.
How do you handle pricing — flat fee or hourly?
Both, depending on scope. Routine service calls and predictable scope (panel replacement, EV charger install, transfer switch install, fixture replacement) are flat-fee quoted up front. Diagnostic visits and emergency scope are hourly because we don't know what we'll find. Either way, you get a written quote before work starts on anything significant, and we don't proceed beyond the quote without your sign-off.
How quickly can you schedule?
Depends on scope and season. Emergency dispatch: same-day across Marin County (1-3 hours business hours, 1-4 hours after-hours). Same-day standard service: 3-6 hours from call when capacity allows; otherwise next business day. Scheduled service work: 1-3 weeks typical. Larger projects requiring permits and PG&E coordination: 4-12 weeks depending on scope. We're upfront about timeline at the quote stage.
What warranty do you offer on work?
Our standard residential warranty: 2 years on labor, manufacturer warranty on parts (varies by product — typically 1-10 years). Major installs (panels, generators, EV chargers) often have longer manufacturer warranties (5-10 years). If there's an issue with our work in the warranty period, we come back and fix it at no cost. We also stand behind work past warranty — repeat customers and referrals matter more than a transactional fix.
Are you licensed and insured?
Yes. California State License Board C-10 Electrical Contractor #989290, in good standing. Carry general liability insurance and workers' compensation insurance as required by California law. Bondable on projects requiring it. Happy to provide proof of insurance to clients or property managers on request. License lookup: cslb.ca.gov.
Schedule a consult before storm season.
Best window for prep work: October before Marin's atmospheric-river season starts. Beat the rush, lock pricing.