Where the river meets the sea, there is the potential to harness a significant amount of renewable energy, according to a team of mechanical engineers at MIT.

Clean energy stocks and the market in general rebounded strongly in August. My broad market benchmark of small cap stocks, IWM, rose 4.5 percent, returning to positive territory up 1.7 percent for the year. My clean energy benchmark PBW also jumped back into the black with an 11.1 percent gain for the month and 10.8 percent for the year to date.

Yield-cos have been grabbing headlines lately. Typically, large utilities spin off their high-yield alternative energy operations into separate smaller companies called yield-cos. These new companies are then taken public to attract individual and institutional investors.

Imagine a place where there is no electricity market. No rules, no policies, no market. A clean slate. This is what the Solar Energy Power Association (SEPA) calls the 51st State, a new initiative to get people to think outside the box when it comes to utility design and infrastructure.

The green revolution and, in particular, renewable energy products such as solar power, wind turbines, geothermal and algae-based fuels are not waiting for viable technology — it already exists in many forms. What they are waiting for is a massive sea change in our antiquated financial accounting systems.

In recent months, a number of initiatives aimed at speeding up the development of the wave energy sector have been launched in the U.S. and Europe. As part of the ongoing work to establish a viable United States wave energy industry, the National Renewable Energy Laboratory (NREL) and Sandia National Laboratories (SANDIA) are working on the creation of a sophisticated open-source modeling tool known as WEC-Sim — and the U.S. Department of Energy is also enlisting the coding community to help in its development. Meanwhile, the European WavePOD project is an industry-wide initiative that aims to solve the problem of converting captured wave energy into electricity by creating a "standardised self-contained offshore electricity generator for the wave industry."

In early 2013, a group of women, dubbed the Women in Power committee, assembled in Orlando, Florida to figure out how to honor women who have dedicated their careers to the power industry. The industry is male-dominated with men making up more than 75 percent of the workforce, according to estimates.

While OPEC is helping drive down global prices for crude, it’s having less success squeezing the $250 billion clean power industry.

The Western States Petroleum Association (WSPA) — whose members include Chevron, ExxonMobil, Shell, ConocoPhillips, BP, and others — was caught red-handed late last month when a leaked internal presentation revealed a coordinated campaign to stomp out climate and clean energy progress in California, Oregon and Washington by propping up over 15 front groups that purport to represent the views of concerned citizens and the broader business community.

The advice that Pennwell’s 2014 Woman of the Year, Mary Powell, gave to women in the power industry during Tuesday’s Women in Power Luncheon might come as a surprise to some. It was this: Stop undercutting each other. Powell said the most difficult obstacles she has encountered in her various leadership roles have not come from men, but rather from other women. Small comments like “I don’t know how you do it [being a mom and holding a high-level job]”, serve to bring doubt and uncertainty to high achieving women in any industry, and ultimately can lead to women exiting their careers in order to fit what they perceive is the societal norm.

Renewable energy stakeholders are well aware that clean energy is slowly but steadily transforming the energy landscape and that message couldn’t have been more clear at the recently concluded Power-Gen International, the largest show for the traditional power generation industry. Since all forms of power generation are represented at the show through the four co-located conferences, PennWell calls the second week in December "Power Generation Week."

The Detroit Power Outage brought eight hours of hardship to Detroit on Dec. 2 — hardship that could have been averted with microgrids.

Earlier this month, when EPA proposed a new health-protective air quality standard for the pollutants that form “ozone,” some critics predictably pounced on it as another example of a long string of “job-killing EPA regulations.” Yet last week, we learned that the U.S. economy created about 320,000 new jobs in November, and average wages are starting to rise as the labor market tightens.

Developers, manufacturers, investors and other renewable energy industry stakeholders need to know where the next big market is going to be so that they can adjust their business decisions accordingly.

As the holidays wind to a close and we ring in the new year, sit back and relax with your favorite libation and enjoy our most popular videos of the year. We guarantee you will learn something new.

In June, the U.S. Environmental Protection Agency (EPA) proposed a rule to restrict the amount of carbon dioxide released from power plants. The rule calls for reducing carbon 30 percent by 2030 over 2005 levels. Many have praised the aggressive proposal, while others are less favorable.

For the past 13 years, Clean Edge has published the annual Clean Energy Trends report that has sized the global market for solar, wind, and biofuels and tracked everything from venture capital and stock market activity to total global investments. This year, instead of issuing one single report, we'll be producing infographics, tables, charts, and webinars throughout the year – so be on the lookout in the coming weeks and months.

President Obama has been under intense scrutiny for what he would do about climate change ever since he was elected in 2008. Part of that scrutiny takes place during his State of the Union Speech, when renewable energy proponents search for key words about solar and wind energy and count how often he mentions "climate change."

The UN climate conference in Lima set the stage for Paris in 2015. Next year’s accord is to provide a working, albeit not a final, answer to the question: Is it possible to keep global warming at or below the 2 degree Celsius limit? This limit is considered the boundary beyond which the negative climatic, economic and social consequences of climate change are thought to become intolerably severe and potentially irreversible.

Researchers at Chalmers University of Technology have discovered that the insulation plastic used in high-voltage cables can withstand a 26 per cent higher voltage if nanometer-sized carbon balls are added. This could result in enormous efficiency gains in the power grids of the future, which are needed to achieve a sustainable energy system.

Cleantech investing has taken quite a hit in recent years. Last year, CBS News highlighted the “cleantech crash” on U.S. primetime television, and Bloomberg New Energy Finance, a Bloomberg-owned energy data firm, has tracked the multi-year decline in cleantech investing. However, there are additional trends that tell another side of the cleantech story and suggest innovation and hope for a low-cost, low-carbon future are far from gone.

In a crammed Washington conference room last week, speaker after speaker seemed to apologize for their ‘broken record’ talking points as Bloomberg New Energy Finance and the Business Council for Sustainable Energy unveiled their annual Factbook. But, of course, they were only being honest — like 2013 before it, 2014 had been an unprecedented year for clean energy.

Last year the U.S. Environmental Protection Agency (EPA) proposed its aggressive Clean Power Plan (CPP), which calls to reduce carbon emissions 30 percent by 2030 over 2005 levels. States are required to submit reduction plans that can include increasing renewables, efficiency, and cap and trade programs by June 2016.

For many mining companies, the rallying cry for investigating solar or wind energy options has been that the price of oil and other conventional fuels is too high — and will almost certainly rise over time. Now, though, with oil prices having taken a dramatic nosedive, this argument no longer packs quite the same punch that it once did.

When I worked at the New York Attorney General's Office, we sued coal-fired power plants because their air pollution was making people sick. But in some towns, I saw that the reliance on coal really had people in a bind. The coal plant was making them sick, but it was also a major tax generator for the town. If the plant closed, the town might have to lay off teachers and cops, in addition to losing the plant jobs.

Technologies to harness wave and tidal power have been under development for over 40 years, but up until quite recently the center of technology development has been in Europe, where the resource intensity is greater than the United States’ coasts. However, in an effort to nurture the country’s sector, the U.S. Department of Energy’s Water Power Program has invested in a broad portfolio of technologies and Alison Labonte, DOE Marine and Hydrokinetic Technology Manager, revealed that it has recently increased its focus on “innovative, game changing technologies that utilize the most abundant marine resources and that have the greatest potential for achieving economic viability.”

The annual outlook issue of Renewable Energy World magazine is our attempt to predict what will happen within the renewable energy industry over the course of the year. To do this, we went straight to the top of major renewable energy companies, asking CEOs and presidents to tell us where they are devoting their company resources in order to capitalize on some of the market growth that they expect to see in 2015.

In a must-read report released this week on fast-changing energy markets, the National Bank of Abu Dhabi signals a once-in-a-lifetime opening for investors in Middle Eastern renewables and energy efficiency.

Sen. Troy Fraser (R-Horseshoe Bay) has filed a bill that would eliminate Texas’ Renewable Portfolio Standard (RPS) – a policy that has catapulted Texas to world leadership in wind energy and strengthened Texas’ energy diversity. In addition to terminating the RPS at the end of the year, SB 931would make it more difficult to build renewable energy infrastructure. The argument behind the bill is that because Texas has achieved its RPS goals it’s time to move on. Sounds reasonable, right? Well…

This week New York Governor Andrew M. Cuomo announced the signing of an agreement between the New York Power Authority (NYPA) and State University of New York Polytechnic Institute (SUNY Polytechnic) that aims “to create a world-class facility devoted to energy technology innovation and the rapid deployment of smart-grid technology to modernize New York's electric grid.”

What do the following have in common: New Zealand, South Korea, Switzerland, Kazakhstan, Quebec, Alberta, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New York, Rhode Island, Vermont, California, Beijing, Guangdong, Hubei, Shanghai, Shenzhen, Chongqing, Tianjin, Tokyo, Kyoto, Saitama and 28 countries in Europe?

The proposed U.S. commitment to tackling climate change in support of a new international climate agreement is a serious and achievable plan that demonstrates the United States is ready to take significant action. Coming today, eight months before the UNFCCC Conference of the Parties in Paris this December, known as COP 21, the U.S. submission adds momentum toglobal climate negotiations and should help spur other countries to act.

A "dark horse" is defined as a little-known entity that emerges to prominence in the face of competition — a contestant that seems unlikely to succeed. I borrow the term from a conversation last week, wherein India was referred to as the dark horse in the global race to go solar.

The race for renewable energy has passed a turning point. The world is now adding more capacity for renewable power each year than coal, natural gas, and oil combined. And there's no going back.

Reflecting the azure skies of the Caribbean, solar panels on private houses, hotels and businesses are an increasingly common sight across all the islands. Many Caribbean customers are seeking a degree of energy independence, which is not surprising given that many pay five or six times as much for their grid-provided electricity than their neighbours in mainland USA.

Just over a decade ago, the state of California faced serious concerns about whether its utilities could generate and/or buy enough power to assure that the world’s seventh-largest economy could keep the lights on. The infamous California energy crisis, which affected several other western states as well, was a complex tangle of poorly structured deregulation, significant market manipulation (remember Enron?), and other causes. Along with rolling blackouts, California endured an official state of emergency that lasted 34 months, led to the recall and replacement of Gov. Gray Davis, and cost the state and its ratepayers billions of dollars — a cautionary tale for all states of electricity supply unable to meet demand.

Driven by rapid expansion in developing countries, renewables are becoming a significant source of the world’s power.  According to the United Nations Environmental Programme’s (UNEP) 9th “Global Trends in Renewable Energy Investment 2015,” investment in developing countries was up 36 percent in 2014, totaling $131.3 billion.

Every industry has its challenges and misunderstandings. Sometimes the obstacles we face in simply trying to do our jobs can be very frustrating.

Pope Francis turned a keen eye toward the environment and the problem of climate change with his encyclical,“Laudato Si” (“Praised Be”). As a clean energy advocate, I’m heartened that Pope Francis recognizes the need to transform our energy system.

Trillions of dollars will be invested in renewable energy over the next 25 years, driving some of the most profound changes yet in how humans get their electricity. That's according to a new forecast by Bloomberg New Energy Finance that plots out global power markets to 2040.