Small Modular Reactors (SMRs): The Foundational Building Block for California’s Reliable Baseload Power

  


Small Modular Reactors (SMRs): The Foundational Building Block for California’s Reliable Baseload Power

By Curtis Neil
May 2026 – A Focused Follow-Up to “California’s Blueprint for Abundant, Affordable, and Reliable Energy”

California already leads the nation in energy efficiency and distributed generation. Strict Title 24 building standards, continuous conservation by businesses and homeowners, and more than 2.26 million rooftop solar installations (over 20 GW) keep per-capita electricity use low and flatten much of the daytime demand.

These are real achievements — but they cannot solve everything.

The Limits of Variable Renewables and Over-Reliance on Batteries

Solar is predictable: it generates when the sun shines — strong midday, zero at night.

Wind is far less reliable. It can be strong in spring and fall, and parts of the state (like the Bay Area’s evening Zephyrs) show decent summer patterns. Yet we can also face weeks of light or calm air with almost no output.

This variability creates the persistent duck curve and forces reliance on expensive peakers or out-of-state imports during gaps. Large-scale battery storage is promoted as the fix, but I remain deeply skeptical. Utility-scale batteries are very expensive to install, have a short lifespan by power-plant standards (typically 10–15 years with steadily declining capacity and efficacy), and raise serious concerns about toxicity and waste material at end-of-life. No other major energy source would be seriously considered if manufacturers openly quoted only a 10-year usable life with constant degradation. Batteries have a role for short-duration shifting, but they cannot economically or reliably carry the multi-hour and multi-day gaps we face.

Surging Demand from Electrification

State policy is aggressively pushing EVs, electric water heating, induction cooking, and all-electric homes. This shift adds steady new demand to the grid — exactly the kind of load that needs reliable 24/7 supply.

Yet high electricity costs (33–36 ¢/kWh) and ongoing reliability concerns are now major barriers to faster EV and all-electric adoption. Californians hesitate to go fully electric when bills hurt and flex alerts remain common.

CAISO peak demand stands near 46 GW today and is forecast to rise toward 66 GW or higher by 2045. The constant 24/7 baseload floor (currently ~22–28 GW) will grow steadily with electrification, data centers, and AI.

The Overall Goal

We need abundant, affordable, and reliable 24/7 power that supports economic growth, lowers bills, protects the environment, and builds on California’s efficiency and rooftop solar successes.

This requires a balanced portfolio:

  • Rooftop and distributed solar + short-duration storage for daytime.

  • Expanded pumped hydro and gravity storage for longer balancing.

  • Flexible natural gas as a true bridge.

  • Firm, carbon-free baseload running at 90%+ capacity factor.

Small Modular Reactors (SMRs) are not the solitary solution. They are the foundational building block that makes the entire blueprint work.

Why SMRs Are Uniquely Suited for California’s Baseload

  • Factory-built modular design (~300 MW per unit) → faster deployment and lower cost/risk than traditional large plants.

  • Ideal for brownfield reuse at retired gas-plant sites with existing grid connections.

  • True 24/7 dispatchable power with passive safety features and 60+ year plant life.

  • Flexible enough to complement solar and wind ramps.

  • Small footprint that fits California’s geography.

Because we already excel at efficiency and rooftop solar, we do not need SMRs to supply every new kilowatt-hour. We need them to securely provide the constant baseload foundation that variable renewables and short-life batteries cannot economically cover — especially as electrification adds steady around-the-clock demand.

Practical Phased Rollout

  • Phase 1: 12 SMRs (~3.6 GW firm) — immediate stabilization, reduced peaker use, and quick relief.

  • Phase 2: ~26 SMRs — solid coverage of near-term baseload needs.

  • Longer-term: 36+ SMRs (~11 GW firm) — secures the growing baseload floor through the 2040s as peaks climb above 66 GW.

This phased approach is realistic, financeable, and politically pragmatic.

Nuclear as Foundation — Not Monopoly

SMRs do not replace rooftop solar — they enable more of it by providing a stable backbone.
They reward efficiency and conservation.
They reduce the need for massively oversized, short-lived battery fleets.
And they remove the cost and reliability barriers currently slowing EV and all-electric adoption.

This is not ideology. It is engineering, economics, and common sense. California has mastered the demand side. SMRs give us the firm supply side required to match.

With the full blueprint — fair Value-of-Power tariffs for rooftop solar, real utility accountability, expanded long-duration storage like pumped hydro, smart gas use, and SMR baseload — California can finally deliver the abundant, affordable, and reliable energy its people deserve.


**References & Further Reading**

- California Energy Commission (CEC): *California Energy Demand Forecast 2025–2045*
https://www.energy.ca.gov/data-reports/reports/integrated-energy-policy-report-iepr/2025-integrated-energy-policy-report-0

- CAISO: 2025 Summer Loads & Resources Assessment
https://www.caiso.com/content/summer-loads-resources-assessment/2025/index.html

- California DG Stats (GoSolarCalifornia) – Rooftop Solar Data
https://www.californiadgstats.ca.gov/

- California Energy Commission – Building Energy Efficiency Standards (Title 24)
https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards

- U.S. Department of Energy – Advanced Small Modular Reactors
https://www.energy.gov/ne/advanced-small-modular-reactors

- GE Hitachi – BWRX-300 Small Modular Reactor
https://www.gevernova.com/nuclear/carbon-free-power/bwrx-300-small-modular-reactor

- World Nuclear Association – Small Modular Reactors Database
https://world-nuclear.org/information-library/nuclear-power-reactors/small-modular-reactors


Curtis Anthony Neil/Grok 4.0/ LibreOffice. May 12th. 2026 AD.

Bakersfield, California, USA, North America, Planet Earth (Terra), the third planet from the Sun (Sol), Solar System, Orion Arm, Milky Way Galaxy


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