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Wildfire catastrophe

Wildfires, Crippled Response, and Evacuation Nightmare

The deepest danger isn't only that this line could start a fire — it's that the line itself would cripple the fight to stop one. For five miles, it threads the Temecula Creek corridor, past homes and a school, and when fire reaches places like these the knockdown comes from the air. Yet, firefighting guidance treats high-voltage lines as an aviation hazard that aircraft must keep clear of, and on the ground crews must abandon a close-in fight within 100 feet of a transmission line until SDG&E de-energizes it. And in some cases, the line that sparks the fire is the line that holds back the people sent to put it out.

All issues
2007
SDG&E lines ignited the Witch, Guejito & Rice fires
~$2.4B
Paid to settle those fire claims
45,000
Evacuated in Fallbrook, De Luz & Rainbow when SDG&E's 2007 Rice Fire burned this back-country

Crippled firefighting — the response itself is thwarted

For five miles, this line would thread the Temecula Creek corridor through the populated south of the city. [5] [4] When a wind-driven fire reaches homes like these, the knockdown comes from the air. But firefighting guidance treats high-voltage lines as an aviation hazard aircraft must keep clear of, so a 500 kV line strung the length of the creek draws a no-drop zone over the exact streets it runs past. [1] [3]

On the ground, the line does worse than block the planes — it holds the firefighters back. The rules force crews to abandon a direct attack within 100 feet of a transmission line until it is de-energized — and no one on the fireline can do that. A 500 kV line isn't switched off at a pole: it is fed with live power from substations at both ends, so only SDG&E's grid-control center can open the breakers feeding it, lock out the automatic reclosers that would snap it back to life, and send a crew to physically ground it — and until the company confirms all of it, the wire has to be treated as live and lethal. So as a fire bears down on these streets, the crews holding the hoses can do nothing but call SDG&E and wait for someone at a control desk miles away to free them to fight. That wait is the same for any energized line — and longer for a 500 kV line fed from both ends, which no local switch can kill. It was real at the January 2025 Eaton Fire: even for ordinary neighborhood wires, crews were told over the radio that, per their Southern California Edison contact, the lines were “to be considered energized, even wires that are down,” and that the utility “currently do[es] not have a plan to mitigate this issue tonight.” [7] [8] [9]

A firefighting helicopter makes a low, slow water drop directly onto flames and heavy smoke rising from a ridge of burning brush.
The knockdown comes from the air — a helicopter makes a low, slow pass straight at the flames. It is exactly this kind of flying, down in the smoke and close to the wires, that a 500 kV line strung along Temecula Creek could turn into a no-drop zone over the neighborhoods below.

Blocked escape — out down a few narrow roads

And if a fire does push toward these neighborhoods, getting out is its own ordeal. When SDG&E's 2007 Rice Fire burned the back-country just west of here, up to 45,000 people were forced to evacuate — proof that mass flight from this terrain is history, not hypothesis. [11] [10]

To make matters worse, Temecula's south side funnels onto a handful of shared arterials, and evacuation researchers warn that fire-prone communities with too many homes for too few exit roads face steadily rising evacuation times and dangerous bottlenecks. [13]

A new ignition source

This line also makes a fire more likely, adding a fresh ignition source to a high-wind corridor the CPUC already maps for elevated-to-extreme fire threat. [15]

And the risk can be put to a number — by SDG&E itself. Its own wildfire model already calculates the expected ignitions for every segment of line in fire country; it just hasn't published the figure for this one. The public should demand it. [18] [19]

SDG&E's own record — it has already burned here

This is not hypothetical. Regulators concluded the 2007 Witch, Guejito, and Rice fires were all caused by arcing from SDG&E's own lines in Santa Ana winds, burning some 334 square miles. SDG&E paid about $2.4 billion to settle, was refused when it tried to bill ratepayers for roughly $379 million more, and agreed to a $14.4 million penalty. [20] [15]

One of those fires, the Rice Fire, burned right here — started by a limb falling on an SDG&E line the company had been told to trim and hadn't. It scorched 9,472 acres, destroyed 248 structures, and drove up to 45,000 people from Fallbrook, De Luz, and Rainbow — the same Very High fire-hazard back-country this line's approach would cross. [11] [10] [6]

The risk lands here — and so does the bill

California's environmental rules are built for exactly this: the CEQA checklist asks whether a project would impair an emergency evacuation plan, and names infrastructure “such as … power lines” that may exacerbate fire risk. The review must squarely analyze this line's ignition risk and its effect on fighting and fleeing a fire — not wave it away. [21]

And here is the sharpest injustice: none of it had to land here. When the grid operator put this line out to bid, four companies competed — and three of the four drew routes that went around the populated areas. The winning bid was the only one that runs through an urban area, and the operator picked it knowing, in its own words, that an urban route “poses a risk of public opposition” — largely because it was the cheapest. [22] So the fire these towers could spark, the air attack they would block, and the evacuation they would choke are not bad luck. They are the foreseeable price of deliberately threading a 500 kV line through the one place people live.

And the line does not even serve them. By the grid operator's own account it was planned for San Diego, the Los Angeles basin, and remote desert renewables — not Riverside County. [23] Temecula's rural west side already sits in the Very High fire zones insurers are fleeing, where “last resort” FAIR Plan policies have grown more than 500%; a new ignition source worsens the exact risk that decides whether homes here can be insured at all, while the line's cost is spread statewide. Residents would carry more fire risk, higher premiums, and part of the bill — for infrastructure that delivers them nothing. [24] [25]

California's insurer of last resort is explodingGrowth since September 2022 — statewide FAIR Plan
  • Total exposure · to ~$750 billion+242%
  • Written premium · to ~$2.0 billion+208%
  • Policies in force · to 684,388+152%

The FAIR Plan is the bare-bones state policy homeowners fall back on when private insurers won't cover them — and as carriers retreat from California's fire country it has ballooned. In Riverside County, last-resort FAIR Plan policies are up about 509%. [26] [24]

“Last resort” coverage costs more for lessAverage annual home-insurance premium
  • Typical California policy~$1,429
  • FAIR Plan average · bare-bones coverage~$3,200
  • High-risk homeowners report$5,000–$12,000

As private coverage retreats, families fall back on the FAIR Plan — more than double a standard policy's premium for thinner protection, and far more for the highest-risk homes. [24]

Sources

  1. [1]NWCG Standards for Aerial Supervision (PMS 505)National Wildfire Coordinating Group
  2. [2]Safety Alert for Operators (SAFO) 10015 — Flying in the Wire EnvironmentU.S. Federal Aviation Administration, Flight Standards Service
  3. [3]Powerlines as a hazard to wildfire aircraft & crewsNational Wildfire Coordinating Group (NWCG) / CAL FIRE Office of the State Fire Marshal
  4. [4]California Dept. of Education — Power Line Setback Exemption Guidance (Title 5 CCR §14010(c))California Department of Education
  5. [5]Temecula City Council presentation, May 26, 2026 (agenda item 19, AR-26-198) — SDG&E Golden Pacific PowerlinkCity of Temecula
  6. [6]Fire Hazard Severity Zones — City of Temecula & CAL FIRE/OSFM (Very High designation)City of Temecula / CAL FIRE Office of the State Fire Marshal
  7. [7]NWCG Incident Response Pocket Guide (IRPG, PMS 461) — Powerline SafetyNational Wildfire Coordinating Group
  8. [8]OSHA 29 CFR 1910.269 — Electric power generation, transmission, and distributionU.S. Occupational Safety and Health Administration
  9. [9]Power lines sparked new fires in LA after the Eaton Fire began, radio traffic showsNPR (Chiara Eisner)
  10. [10]De Luz / Santa Margarita local wildfire history (recurring fires)CAL FIRE / FOX5 San Diego / Temecula Patch
  11. [11]Rice Fire (October 2007) — SDG&E power-line ignition; Fallbrook/De Luz/RainbowWikipedia / CPUC Final Decision (I.08-11-006) / CAL FIRE
  12. [12]City of Temecula — Emergency Evacuation Plan / City-Wide Mass Evacuation PlanCity of Temecula
  13. [13]Mapping wildfire evacuation vulnerability in the western US: the limits of infrastructureCova, Dennison, et al. — GeoJournal (Springer)
  14. [14]Public Safety Power Shutoffs (PSPS)California Public Utilities Commission
  15. [15]CPUC Fire-Threat Maps & High Fire Threat District (Tier 2/Tier 3)CPUC
  16. [16]CPUC Decision D.08-12-058 + Sunrise Powerlink Final EIR/EIS (Fire & Fuels, Impact F-2) — wildfire ignition a significant, not-fully-mitigable impact of a 500 kV line in the SD backcountryCalifornia Public Utilities Commission
  17. [17]Sunrise Powerlink Final EIR/EIS, Section D.15 Fire & Fuels — SDG&E ignitions by voltage (2004-2007): none on a 500 kV line, yet Impact F-2 still significantCalifornia Public Utilities Commission / BLM (Aspen Environmental); ignition data per MGRA 2008
  18. [18]SDG&E WiNGS-Planning wildfire risk model — computes expected annual ignitions per HFTD segmentSan Diego Gas & Electric (OEIS-2023-04 Attachment Q7; Wildfire Mitigation Plan)
  19. [19]SDG&E 2023 Safety Performance Metrics Report — reportable ignitions and overhead circuit milesSan Diego Gas & Electric / CPUC Safety Policy Division (R.20-07-013)
  20. [20]SDG&E 2007 Witch/Guejito/Rice fires - cause, liability, penalty, rate-recovery denialEast County Magazine / Patch / SEC (Sempra 8-K)
  21. [21]CEQA Guidelines Appendix G — Wildfire significance checklistCalifornia Natural Resources Agency
  22. [22]CAISO Imperial Valley–North of SONGS 500 kV Project — Project Sponsor Selection ReportCalifornia ISO
  23. [23]CAISO Board-Approved 2022-2023 Transmission PlanCAISO
  24. [24]California home-insurance crisis & FAIR Plan growth — county detail and dynamicsCalMatters / Stateline / MoneyGeek
  25. [25]Background White Paper: Review of Transmission Access Charge StructureCAISO
  26. [26]California FAIR Plan — Key Statistics & Data (policies in force, total exposure)California FAIR Plan Association
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