About Dan Hahn

Dan Hahn - Author of Solar Reviews

Dan Hahn

Solar Journalist

Dan is a solar journalist and content advisor with SolarReviews. He also works with solar installers and solar nonprofits to develop and execute strategic plans.

Dan Hahn founded residential solar energy information and policy resource, Solar Power Rocks, in 2007. As the site's chief architect and senior editor, he developed a national framework for evaluating the impact of residential solar energy policy.  Possessed with a mission to communicate how all state legislatures can encourage solar energy growth, he developed annual state scorecards to benchmark solar policy performance across the United States. Solar Power Rocks has been cited by publications such as the New York Times, Politifact, and Seeking Alpha.

Dan earned his B.S. in Financial Management from the University of Illinois in 2001, and his M.S. in Industrial/Organizational Psychology from Portland State University in 2008.

Recent articles by Dan Hahn

The best solar stocks to watch over the next decade

Dan Hahn

February 20, 2021

The best solar stocks to watch over the next decade

Learn about some of the more interesting publicly-traded companies in the solar energy and energy storage industries in 2021 and beyond.

Everything you need to know about solar tubes

Dan Hahn

November 14, 2020

Everything you need to know about solar tubes

Explaining how solar tubes work, pros and cons, cost, usefulness compared to skylights, and the best models available on the market.

How solar is installed on clay tile roofs

Dan Hahn

March 15, 2020

How solar is installed on clay tile roofs

Clay tile roofs dominate the landscape across the American southwest. They look great, are part of Spanish culture, and can last a century. However, they can be a pain in the butt for solar installers to work with. Until recently, installing solar on clay

How much do solar panels increase home value?

Dan Hahn

August 14, 2020

How much do solar panels increase home value?

Learn how much more solar homes are worth when buying or selling your home.

How much energy does the sun produce? (and other fun facts)

Dan Hahn

October 10, 2009

How much energy does the sun produce? (and other fun facts)

Learn more about how much energy the sun produces and why we need to utilize this energy for our own electricity.

What are DC power optimizers?

Dan Hahn

September 13, 2020

What are DC power optimizers?

How DC power optimizers work, and what their benefits and drawbacks are in your home solar energy system.

The best uses for nickel cadmium (Ni-Cd) batteries

Dan Hahn

January 7, 2021

The best uses for nickel cadmium (Ni-Cd) batteries

Are Nickel Cadmium (Ni-Cd) batteries the best fit for home solar? We answer this question while explaining this type of battery’s applications and how it works.

A sick graph – Iraq war spending vs. spending on renewable energy

Dan Hahn

October 30, 2007

A sick graph – Iraq war spending vs. spending on renewable energy

These figures are in millions. The source for energy R&D expenditures is from the National Council for Science and the Environment. Take a look here. Though the war in Iraq now costs about $120B a year, two authors (one a Nobel prize winner) estimates the

How do I get started in the solar industry?

Dan Hahn

October 22, 2019

How do I get started in the solar industry?

We get requests from plenty of people who want to make the jump into the solar industry, so we figured it's about time to address how that may be achieved. In this article, we review steps you need to take if you wish to become a solar salesperson.