solar panels

California expected to require new homes to have solar panels in 2020

Written by Joseph Nordqvist

Published: 01:50, May 7, 2018

California’s Energy Commission is expected to approve new energy standards mandating most newly built homes to have solar panels starting in 2020.

If approved, California would become the first state to have a solar panel requirement.

Home construction costs are expected to increase by between $25,000 to $30,000 with the new solar standards, according to C.R. Herro, Meritage Homes’ vice president of environmental affairs. However, he said that over the 25-year lifespan of the home’s solar system, lower operating costs would save homeowners up to $60,000.

closeup of solar panelCurrently around one fifth of homes in California are built with solar capacity.

Bob Raymer, technical director for the California Building Industry Association, told The Mercury News:

“California is about to take a quantum leap in energy standards.

“No other state in the nation mandates solar, and we are about to take that leap.”

The mandate originated in 2007 when the energy commission set a goal to improve the efficiency of homebuilding so that “newly constructed buildings can be net zero energy by 2020 for residences and by 2030 for commercial buildings”.

However, the new mandate doesn’t demand homes to be net zero.

Andrew McAllister, one of five state energy commissioners voting on the new homebuilding standards, was quoted by The Mercury News as saying, “Zero net energy isn’t enough,”

“If we pursue (zero net energy) as a comprehensive policy, we’d be making investments that would be somewhat out of touch with our long-term goals,” he added.

Pierre Delforge, energy efficiency program director at the Natural Resources Defense Council, welcomed the move, describing it as “another important step towards the environmentally-friendly, healthy and affordable home of the future”.

Bill Watt, former president of the Orange County Building Industry Association, expressed concern about the mandate.

“We’re not building enough housing already,” said Mr Watt. “Why not just pause for a little while, focus on the affordability and housing issues, then circle back?”

Joseph Nordqvist Avatar

Other News

Canada’s trade surplus shrinks as exports to the US fall

Sep 5, 2026

El Niño strengthens into 2027, raising risks for food prices, power and trade

Sep 5, 2026

Nvidia agrees to buy Hugging Face for $12.93 billion, pledges to keep platform open

Sep 5, 2026

Global food prices rise as sugar leads August increases

Sep 5, 2026

A weaker currency can lift overseas profits without reviving factories at home

Sep 5, 2026

AI shortcuts may weaken managers’ judgment, researchers warn

Sep 4, 2026

Alibaba updates Qwen3.8 Max as Chinese AI rivals target workplace tools

Sep 3, 2026

Uber and Wayve begin supervised autonomous rides in London

Sep 3, 2026

Dutch central bank raises London share of gold reserves to 32.1%

Sep 3, 2026

Europe’s housing squeeze is becoming a labor market problem

Sep 3, 2026

Vertiv agrees $1.45 billion deal to expand onsite power for AI data centers

Sep 2, 2026

Advanced-economy bond yields are lifting borrowing costs for developing countries

Sep 2, 2026

‘Buy Now, Pay Later’ may lift prices for shoppers who pay upfront, model finds

Sep 1, 2026

Fast delivery can shield nearby sellers from competition

Sep 1, 2026

World Bank says domestic reforms could unlock more trade within Africa

Sep 1, 2026

GoPro agrees Starman merger as action-camera maker looks to AI infrastructure

Sep 1, 2026

UK opens first challenges under £100 million AI procurement scheme

Aug 31, 2026

SLB to buy Kelvion in $4.1 billion deal as it expands into data center cooling

Aug 31, 2026

EU online sellers declared €38.8 billion in VAT through one-stop systems in 2025

Aug 31, 2026

IMF says stablecoins could cut payment costs but weaken monetary control

Aug 30, 2026