Archive for geothermal

Does Renewable Energy Increase Electricity Costs?

By Daniel Fleischmann, Renewable Energy World

Since the big push from the U.S. government for investment in renewable energy in 2009, we’ve had the opportunity to see how prices have changed between states that have made large investments in renewable energy, and those that have not.

Critics of renewable energy investment say that renewable energy will never be as cost-effective as fossil fuels and could give customers sticker shock.

But is that the case?

To make the comparison, I took a sampling of 40 states; 20 states that have clearly invested heavily in increasing generation from renewable energy, and 20 states that have clearly been lagging behind on investment. I left out Alaska and Hawaii, where electricity prices are affected by different market forces than in the lower 48 states. I focused on the increased generation from geothermal, solar, and wind energy. Biomass has only grown measurably in New Hampshire and Virginia over the past several years.

I focused on generation rather than consumption, since the practice of actually constructing and operating these facilities within the state is more of an “investment” than buying power from hundreds of miles away. To do this, I compared the average price of power provided by the Energy Information Agency (EIA) for each of these states from 2010 through 2015 with the approximate average price over the last 18 months.*

In selecting the states for each list, I found it pretty clear to differentiate those that had invested heavily in renewable energy and significantly increased generation, with those that had not. This list takes into account EIA estimates on generation from distributed solar.

The obvious states that have invested heavily include California, Colorado, Iowa, Kansas, Maine, Massachusetts, Minnesota, Nevada, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, and Vermont. As for the remaining six states, I found Arizona worthy for the list, growing from 0.2 percent of its generation from wind and solar in 2010 to nearly 5.8 percent through the first half of 2016.

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100% Renewable Energy in 10 Years

Richard Heinberg of the Post Carbon Institute:

If our transition to renewable energy is successful, we will achieve savings in the ongoing energy expenditures needed for economic production. We will be rewarded with a quality of life that is acceptable—and, perhaps, preferable to our current one (even though, for most Americans, material consumption will be scaled back from its current unsustainable level). We will have a much more stable climate than would otherwise be the case. And we will see greatly reduced health and environmental impacts from energy production activities.

But the transition will entail costs—not just money and regulation, but also changes in our behavior and expectations. It will probably take at least three or four decades, and will fundamentally change the way we live.

Nobody knows how to accomplish the transition in detail, because this has never been done before. Most previous energy transitions were driven by opportunity, not policy. And they were usually additive, with new energy resources piling onto old ones (we still use firewood, even though we’ve added coal, hydro, oil, natural gas, and nuclear to the mix).

Since the renewable energy revolution will require trading our currently dominant energy sources (fossil fuels) for alternative ones (mostly wind, solar, hydro, geothermal, and biomass) that have different characteristics, there are likely to be some hefty challenges along the way.

Therefore, it makes sense to start with the low-hanging fruit and with a plan in place, then revise our plan frequently as we gain practical experience. Several organizations have already formulated plans for transitioning to 100 percent renewable energy. David Fridley, staff scientist of the energy analysis program at the Lawrence Berkeley National Laboratory, and I have been working for the past few months to analyze and assess those plans and have a book in the works titledOur Renewable Future. Here’s a very short summary, tailored mostly to the United States, of what we’ve found.

Read more here.