Heliotactic Press

Interdisciplinary exploration of solar energy conversion, photovoltaics, and integrative design, and scientific philosophy.

What to do with solar in the economic turndown 2009/03/21

Filed under: education,energy,photovoltaics,Solar Decathlon,solar energy — nanomech @ 10:24

As you may have noted, I am in the process of developing this blog that extends beyond (Nanomech in Photovoltaics). The reasons? First, the Sun allows for a plethora of possibilities, and I wanted to work with a bigger canvas! Second, I feel the need to open up the blog to entries from guests, to create a diverse perspective of all things tied to solar (including energy efficiency, green roofs, passive solar design, energy recovery and cogeneration). And third, and most frankly, PV is the most expensive solar investment for the individual. In this economic depression, we need to know what technologies are affordable and offer the highest rewards for the initial investment. I’ve been told again and again that solar hot water is the most obvious, no-brainer tactic in the solar arsenal. It’s cheap (< $6000 for everything), it’s easy, and by replacing/complementing your electric or gas (or fuel oil) water tank (with federal and state incentives), payback is often less than 5 years.

My recent experiences have included teaching solar energy conversion, developing tools for solar resource assessment, and leading a great team to design, build, and operate a solar-powered house (www.solar.psu.edu). From these endeavors, it was obvious that it would be beneficial to pass along the great breadth of solar energy conversion possibilities.

So, I still hope to post on photovoltaics (still my favorite, and I am a materials researchers in PV), but expect to see more on diverse topics in the future.

 

Surfing more and more photovoltaics! 2008/07/23

Filed under: Al Gore,next generation,photovoltaics,solar,Solar Decathlon — nanomech @ 12:36

In just a few years since returning from France in 2006, I have noticed some significant improvements in the world of PV within the United States. In fact, it seems that there is a wave of solar development and deployment that is rolling across the country!

Let me preface this glowing remark by commenting that not all was so great even two or three years ago. I had been working for a year in a laboratory in France that specialized in basic research for silicon and eta-cell (extremely thin absorber) thin film photovoltaic devices. While there, I was working with members of industry, the French government and power company, and the French national lab system. It seemed that there was a great vertical integration of research, industry, and deployment in France (and even more occurring in Germany). It was therefore a bit of a let down to return and learn how far behind the US was in terms of this integration. Yes, there are two major centers for research in Colorado (NREL) and Florida (FSEC), but as a national whole, the system seemed a bit worn, frumpy, and patchwork in nature. In truth, the USA went through about a 25 year period where not much was visible at all in solar research. The funding had dried up, leaving room only for the biggest four or five names in materials research and computer simulation (who supplemented their funding with studies in refrigeration). Now, many of the notable solar researchers are either retired scientists, microelectronics specialists, or emeritus professors.

However, in the two years since I returned there has been a dramatic bootstrapping occurrence. Just as we are looking to “next generation” PV technology, so are we seeing “next generation” researchers, educators, and industrial developments! Gunther Portfolio is a great blog for keeping us informed about developments for investing, and SolarBuzz and PVNews/Greentech Media also have regular installments of more and more PV industry growth.

In education, Penn State launched a new Spring 2008 course from the Dept. of Energy & Mineral Engineering, focused on solar energy conversion (with emphasis on photovoltaic conversion). Penn State also has plans to develop another more hands-on course in photovoltaics for extended education in the near future. Prof. Tonio Buonassisi of MIT has also announced a course in photovoltaics set for this Fall 2008 semester. The students have spoken, and they want more information on the current state of the art in solar and photovoltaics!

In the federal government realm, we are still sadly lacking a signal to encourage PV via incentives. The residential tax credit is slated to expire at the end of this year (following an extension). You will find much better luck for incentives on a state by state basis (see DSIRE). However, we did just receive a call to action by former Vice President Al Gore that may put more senators and representatives “in the mood” for renewable electricity generation. Also, the Solar Decathlon is to continue until 2015, the projected year for levelized cost of electricity generation from PV to be competitive with coal-fired electricity generation. The sponsor (DOE/NREL) projects half a billion visitors to the Mall area over a three-week period in September 2009, and anticipates global exposure to the Solar Decathlon concept to over one billion people. The Solar Decathlon is also exerting a viral effect on solar engineering and design, as it is inspiring similar competitions globally. Even now, a Solar Decathlon Europe is planned for 2010 in Madrid, Spain. The city of Beijing will be holding the 2009 Delta Cup – International Solar Building Design Competition, where the winning homes will be deployed in the earthquake-hit areas of Sichuan.

Keep up the good work, solar community! Let’s continue to work together to provide more information and more incentive for the broad public to adopt solar renewable energy. Of course, if a major component of that is photovoltaics, I would be pretty ecstatic!

 

Natural Fusion recap 2008/04/19

Filed under: Natural Fusion,Penn State,photovoltaics,Solar Decathlon — nanomech @ 08:25

It has been a very busy semester at Penn State. I’ve served as the faculty director for the Solar Decathlon 2009 effort (Natural Fusion project), I’m developing a course in solar energy conversion, I’m establishing my materials research laboratory, and I’m the outreach and recruiting coordinator for my department. Even so, one of the fun aspects of my job is that so many things overlap each other, and there seems to be an unusually high rate of “moments of synchronicity”. The class overlaps with the project, and the project helps with recruiting, and I’ve gotten to know more people on campus than I ever would have hoped for in my first year at University Park. What a blast!

In the Natural Fusion project, I have 15 amazing students serving as project managers from multiple colleges. They all have the vision and energy to turn this competition into a brilliant learning experience for integrated design, green building, and entrepreneurship. We also already have a team of over 100 (!) students that are helping in our design and marketing process.

I am also fortunate to have two other experienced faculty members deeply involved in the mentoring experience, and several more faculty available for support in the future. The team has been out to several industries seeking support in mentoring, materials, and direct funding–and things are looking very good. Even in the first four months, it appears that we will be testing and deploying many new technologies in photovoltaics and energy efficient materials. It’s not without its stressful periods, but I feel that we have a really great thing going that will be both memorable and valuable to all of our futures.

 

Solar Decathlon…ho! 2007/12/11

The Solar Decathlon is a progressive competition, offered to selected universities across the nation and outside of the USA every other year, in which students from multiple disciplines design and build a home completely powered by the sun. The focus of the competition is to combine BIPV (Building Integrated PhotoVoltaics) with new energy efficient architecture and its engineering systems. The competition was initiated in 2002 by NREL/DOE in conjunction with major sponsorship by British Petroleum, and the official two-year cycle was continued as of 2005 (SD2005).

The Decathlon operates within the general goals of the Solar America Initiative of the DOE, to make photovoltaic solar energy cost-competitive with conventional energy forms by 2015 (levelized costs of $0.10/kWh for PV). A major focus is to encourage relations between Academia and Industry for integrated design of photovoltaics within standard building practices. However, it includes the incorporation of the project into the curriculum of the students, as well as their involvement with industry. The Decathlon is projected to continue until 2015.

The winner of SD2007 was: Technische Universität Darmstadt. That’s correct; Germany won the USA solar home competition on their first try (why shouldn’t the biggest PV player in Europe be a strong competitor?). Perhaps this was an appropriate challenge to wake up integrated PV education in the states.

My own new home, Penn State University, took 4th place on their first attempt, Morningstar Pennsylvania. We’re looking forward to the opportunity to return and improve upon that standing in SD2009. It’s a great opportunity for students and faculty alike, and all products displayed in the Solar Decathlon homes are commercially available, which will make the project pretty interesting as the competitions progress to 2015.

 

 
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