Connect with us

Hi, what are you looking for?


Clean Power

Beyond Subsidized Solar Power: The Path to Grid Parity

Solar Panels

Editor’s Note: The is a guest contribution by Angiolo Laviziano, President and CEO of REC Solar IncThis is the third post in a series from the CEO’s of major solar companies. The first post was by the SolarCity CEO, Lyndon Rive, and the second was by groSolar CEO Jeff Wolfe. You can follow the complete series here.


Two phrases that are often repeated in the solar industry are “Grid Parity” and “Cost Roadmap”. Grid parity is generally considered to be a key goal of the solar industry. Grid parity will be achieved in the U.S. when customers are motivated to buy solar because the investment has a sufficient return WITHOUT any subsidies from the federal or state government.  At present, most people consider PV to be a financially acceptable investment only if federal, state and rebate incentives are applied.

Currently, the rebates and tax credits offered by the government improve the financial return of a solar project together with other factors, such as the solar electric system cost (lower is better for the return), sun exposure on site (higher is better) and the cost of electricity that the solar system is substituting (higher is better).

The cost of electricity is of particular importance: solar substitutes for electricity demand on the customer’s side of the meter, where it competes with the retail price of electricity. This is in contrast to wind power, which is generated on the utility side of the meter, and therefore competes with the much lower wholesale rate of electricity.

The average price of a 100kW system in San Diego, California costs $6.50/Watt DC. A 100kW system generates approximately 154,000 kWh per year and has an estimated payback time of 7 years with government incentives and 13 years without incentives; whereas in Boulder, Colorado the payback time with incentives is 7 years and 18 years without incentives. The numbers vary significantly in Portland, Oregon. The payback is 4 years and 24 years, respectively. Honolulu, Hawaii shows the best return with 4 years payback with government incentives and 7 years payback without incentives.

The above data shows that Hawaii is closest to grid parity given the combination of high electricity prices and excellent solar insolation. At the moment, none of these markets are offering an acceptable payback time to solar electric system owners without the help from government incentives.

Our customer research shows that a payback time of 7 years is satisfactory to the purchaser of a 100kW system. In a non-incentive scenario the solar system price would have to be around $2.90/Watt DC in California, $1.70/Watt DC in Colorado and $5.90/Watt DC in Hawaii.

I don't like paywalls. You don't like paywalls. Who likes paywalls? Here at CleanTechnica, we implemented a limited paywall for a while, but it always felt wrong — and it was always tough to decide what we should put behind there. In theory, your most exclusive and best content goes behind a paywall. But then fewer people read it! We just don't like paywalls, and so we've decided to ditch ours. Unfortunately, the media business is still a tough, cut-throat business with tiny margins. It's a never-ending Olympic challenge to stay above water or even perhaps — gasp — grow. So ...
If you like what we do and want to support us, please chip in a bit monthly via PayPal or Patreon to help our team do what we do! Thank you!
Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Pages: 1 2 3

Written By

Angiolo Laviziano guides the strategic direction and long-term vision of REC Solar. He believes that solar electricity will become part of the mainstream energy supply within the next decade, and that the USA will be the world’s largest market for solar electricity within five years. “Our goal is to make solar simple and affordable, giving as many residential and business customers as possible the opportunity to install solar,” says Laviziano. “The positive environmental impact from solar power that we all desire will be realized by making solar electricity economically attractive.” In the 1990s Laviziano worked in the financial industry in Hong Kong before joining Conergy, the largest European renewable energy system integrator. He served on Conergy's board of directors and saw the company through a strong and profitable growth process culminating in its European IPO in 2005. Laviziano received a PhD in Financial Economics from the University of Hong Kong and holds a graduate business degree, equivalent to an MBA, from Koblenz School of Corporate Management in Koblenz, Germany.


You May Also Like

Clean Transport

A new type of autonomous electric train is on track to electrify the US freight rail network and push diesel trucks off the highways,...


Extreme weather events, cybersecurity threats and volatility in energy markets at all levels puts intense strain on America’s power grid. Virtual power plants (VPP)...

Clean Power

Big news for clean air last week. The Bay Area Air Quality Management District (BAAQMD) adopted amendments requiring the elimination of nitrogen oxide (NOx)...

Clean Power

Steel, like concrete, is such an integral part of our world that we rarely notice it. From wherever you are reading this, I guarantee...

Copyright © 2023 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.