Question 1

What is California Rule 21?

Accepted Answer

Electric Rule 21 is a tariff that defines the interconnection, operating, and metering standards for generation facilities tying into a utility’s distribution network, covering CPUC‑jurisdictional connections, net energy metering sites, non‑export sites, and qualifying facilities selling power at avoided cost.

Question 2

How many companies comply with California Rule 21?

Accepted Answer

Based on our data, 119 companies comply with California Rule 21. This number is updated daily as we discover new companies through job posting analysis.

Question 3

What types of companies comply with California Rule 21?

Accepted Answer

California Rule 21 is relevant across multiple industries including Individual and Family Services, Utilities, Fuel Cell Manufacturing. Companies range from startups to enterprises with 10,000+ employees.

Question 4

How does TheirStack track companies related to California Rule 21?

Accepted Answer

TheirStack analyzes millions of job postings daily from company career pages, job boards, and recruitment platforms. When a company mentions California Rule 21 in their job descriptions, requirements, or responsibilities, we identify them as related to California Rule 21 and add them to our database.

Question 5

How can I get the full list of companies that comply with California Rule 21?

Accepted Answer

You can access the complete list of 119 companies on TheirStack. The data includes company name, industry, size, location, funding, and revenue. Available via our web app or API.

Question 6

How often is the company data updated?

Accepted Answer

Our database is refreshed daily. We continuously monitor job postings to detect new companies complying with California Rule 21 and update existing records.

Company	Country	Industry	Employees	Revenue	Technologies
Boys Town	United States	Individual and Family Services	2.1k	$3.6M	California Rule 21
Southern California Edison (SCE)	United States	Utilities	13k		California Rule 21
Bloom Energy	United States	Fuel Cell Manufacturing	2.2k	$972M	California Rule 21
City of Auburn (Washington)	United States	Government Administration	340		California Rule 21
Schneider Electric	France	Automation Machinery Manufacturing	166k	$26B	California Rule 21
Enphase Energy	United States	Renewable Energy Semiconductor Manufacturing	2.9k		California Rule 21
Hubbell	United States	Appliances, Electrical, and Electronics Manufacturing	20k	$5.1B	California Rule 21
Pacific Gas and Electric Company	United States	Utilities	23k		California Rule 21
Eaton	Ireland	Appliances, Electrical, and Electronics Manufacturing	92k	$20B	California Rule 21
Ameresco	United States	Services for Renewable Energy	1.5k	$1.6B	California Rule 21

Companies complying with California Rule 21

List of companies that comply with California Rule 21