About Teddy Theil

Teddy Theil - Author of Solar Reviews

Teddy Theil

Solar Industry Expert

Andy is arguably the most qualified rooftop solar expert in America. He is in a unique position, having founded a large solar company but now being independent of any particular company. He has appeared on CNBC, has been referenced in public hearings concerning the rooftop solar industry ( such as the recent CPUC NEM 3 decision) and has been referenced by many major publications such as the Wall Street Journal, Business Week and many others.

Andy Sendy is a well known and trusted figure within the solar industry with more than 15 years of experience.

His video reviews of the leading brands of solar panels and home energy storage batteries are a must watch each year for both homeowners and solar industry professionals alike.

In 2021, an article he wrote about a clause in the Tesla solar panel rental contract caused Tesla to change this clause within days.

He was the founder of Solar Wholesalers, now the largest solar panel installation company in South Australia, has owned and operated solar projects in Japan and is Chairman of Solar Investments, a company that publishes several of the best rooftop solar related consumer education websites in America.

Andy has sat across the kitchen table with thousands of people who have considered solar. His background as a corporate lawyer and a financial analyst gives him a unique insight into the information consumers need.

His special skill is his ability to identify criteria that homeowners can use to determine the difference between good and bad solar companies

Recent articles by Teddy Theil

What is the most energy efficient space heater  - and the best solar air heater?

Teddy Theil

May 3, 2019

What is the most energy efficient space heater - and the best solar air heater?

Looking for something safe and energy efficient? There are now space heaters and solar air heaters that are great for a single room or smaller space.

Do solar panels work on cloudy days or at night?

Teddy Theil

January 24, 2019

Do solar panels work on cloudy days or at night?

We explain in simple English how solar panels work, how well they work on cloudy days and climates, and whether they work at night.

A beginners guide to solar panels for home: Are they worth it where you live?

Teddy Theil

January 6, 2021

A beginners guide to solar panels for home: Are they worth it where you live?

Solar Panels for Home: Ultimate beginners guide shows the economics of solar panels on your specific home

How to understand and compare solar panel specifications

Teddy Theil

January 10, 2024

How to understand and compare solar panel specifications

Understanding the most important solar specifications like power output, efficiency, and temperature coefficient helps you find the right solar panels.

Are residential solar panels worth it in 2024?

Teddy Theil

October 4, 2023

Are residential solar panels worth it in 2024?

Calculate if solar panels are worth it for your home based on your location, electric rates, roof type, electric use, rebates and tax credits, and the prices of local solar companies

How much do solar panels cost and save homeowners in Orange County in 2024?

Teddy Theil

April 7, 2022

How much do solar panels cost and save homeowners in Orange County in 2024?

Find out key facts about going solar as an Orange County homeowner, including your potential cost & savings, payback period, incentives, rebates & more.

Exploring the best Tesla Powerwall alternatives in 2024

Teddy Theil

December 20, 2018

Exploring the best Tesla Powerwall alternatives in 2024

Tesla Powerwall rules the US market—but is another brand better for your needs? Here are the reviews and pros & cons for the Sonnen Eco, LG Chem Resu and BYD B-Box. All have some great features that make them worth a closer look...

How much will solar panels cost to install on your home in 2024?

Teddy Theil

November 3, 2023

How much will solar panels cost to install on your home in 2024?

Solar system cost is now less than $20,000 for a typical home. But what should you take into consideration when shopping for solar panels for your home?