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

Pros and cons of Tier 1 vs. Tier 2 solar panels

Teddy Theil

August 23, 2017

Pros and cons of Tier 1 vs. Tier 2 solar panels

What is a tier 1 and tier 2 solar panel? What efficiency do I get from these types of solar panels?

What do Tesla solar panels cost? Are they the best solar panel?

Teddy Theil

September 13, 2018

What do Tesla solar panels cost? Are they the best solar panel?

This blog lays out what Tesla solar panels are, why Tesla uses third-party manufacturers, and most importantly, how much they cost.

Solar water heaters: Are they worth the cost?

Teddy Theil

April 5, 2019

Solar water heaters: Are they worth the cost?

Everything you need to know about solar water heaters, including how they work, and how much they can cut down your utility bill.

Solar panel maintenance: Everything you need to know

Teddy Theil

February 12, 2019

Solar panel maintenance: Everything you need to know

Solar panel maintenance is easy. We tell you what you need to do — and how often — to keep them running at peak efficiency.

How hot do solar panels get and how does it affect my system?

Teddy Theil

January 1, 2019

How hot do solar panels get and how does it affect my system?

Worried your solar panels will overheat and lose efficiency? Learn the optimum temperature for panels & what happens when the temperature rises.

Solar inverters: pros and cons of string inverters vs. microinverters

Teddy Theil

November 3, 2023

Solar inverters: pros and cons of string inverters vs. microinverters

Microinverters are the most popular inverter type and are best for complex installations. String inverters are best for simple systems as they come at a lower price.

The cost of charging a Tesla—and how it compares to gas vehicles

Teddy Theil

June 21, 2023

The cost of charging a Tesla—and how it compares to gas vehicles

The average cost to fully charge a Tesla at home is between $13 and $18. But, total charging costs vary with the car model, electricity prices, and the charger you use.

Solar Energy vs. Fossil Fuels

Teddy Theil

July 12, 2018

Solar Energy vs. Fossil Fuels

The answer we’ve heard for years is to turn to renewable types of energy because fossil fuels are being depleted and a danger to the environment. Make a conscious effort to reduce their carbon footprints.

Solar Panel Repairs and Servicing: Keeping Your System Working and What to Do When it Doesn't

Teddy Theil

July 19, 2023

Solar Panel Repairs and Servicing: Keeping Your System Working and What to Do When it Doesn't

Solar panels require regular servicing and occasional repairs to maintain optimal performance. Learn how to keep your solar panels in tip-top shape today.