this post was submitted on 26 Jun 2025
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How much cheaper is gas? In the UK gas is 1/3 the cost of electricity per mw, but gas boilers are less than 1/3 as efficient so heat pumps are still cheaper to run.
Right now in California natural gas is about $14-15 per thousand cubic feet (yeah it's a stupid unit), which is about 1 million BTUs (another stupid unit of energy). That translates to about 290 kWh.
The average residential price of electricity in California is about 30 cents per kWh. So the same amount of energy in electricity would be about $87, about 5.8 times as expensive as gas per unit energy.
If a heat pump is 4 times as efficient at heating than a gas furnace, then we're still looking at higher heating costs for heating a home.
And things like stoves and hot water heaters tend not to be as efficient as heat pumps, so you're still looking at a 4-6x cost difference from electrification on those.
Yeesh! It's crazy that gas is so much cheaper in a place with such abundant sunlight- any idea why? Are there lopsided grants/funding?
Natural gas is abundant and cheap in North America, and transporting gas overseas has always been inefficient and expensive, so each continent tends to have their own price for natural gas.
Electricity is expensive in California in large part because the transmission lines cause devastating wildfires, so the rates now includes the cost of preventing fires by continuously trimming trees and other vegetation near power lines, and paying off past liability for billions of damage in previous fires.
Everyone says the transmission lines cause devastating wildfires but that’s the proximate cause. It’s like if we went to a gas station and there was an enormous leak with a giant pool of gasoline filling the parking lot and then we blamed a lady wearing a wool sweater for giving off the spark that starts the whole thing ablaze.
The problem with wildfires in California is twofold: 1) not enough controlled burning (due to underfunding and lack of staff) and 2) too many homes built in the highest risk areas.
I think part of this issue is the California government’s boneheaded fight with insurance companies which seeks to prevent them from appropriately pricing the risk for home insurance. One of the most valuable things insurance companies (as hated as they are) do for society is develop highly sophisticated risk models for wildfire and flood damage. When allowed to, they incorporate these models into the premiums they charge for home insurance in different areas. This would ordinarily make it extremely expensive to insure a home in the highest risk areas, creating a market disincentive to build there, but Californians insist on fighting this (shooting the messenger) through the political system.