This post looks at the message promoted by the gas industry that natural gas is the necessary complement to renewables such as solar and wind, because the latter are variable and thus need a backup power source that can quickly be brought on line. There are other and perhaps even better ways of addressing variability that also need looking at.
This post reports on the newly announced loan guarantees for the concentrated solar power (CSP) Crescent Dunes Solar Energy Project that is to be built in Nevada. This kind of solar power, because it is paired with a molten salt thermal energy storage capacity has the ability to be a load following generation source that is somewhat insulated from intermittency issues as well. For large concentrated solar thermal energy this decoupling of the energy collection from electricity generation makes a lot of sense, because the molten salt is already being used as the working fluid that captures the sun’s heat.
Concentrated solar photovoltaic energy or CPV is a relative newcomer to the solar power arena and is showing signs of entering into a phase of very rapid growth. It works by concentrating the sun onto a small area of active PV, which operates at around twice the efficiency of normal PV, and promises savings because it requires only a fraction of the photovoltaic material that normal systems require. The DOE has announced a $90 million loan guarantee to support a planned 30-megawatt facility near Alamosa, Colorado.
This post looks at some of the financing and perception challenges that the renewable energy sectors need to meet in order to compete with the much better organized and currently profitable fossil energy sectors. The author would like to see a greater focus in the renewable sector on the specific needs of the companies in the industry and makes the argument that companies in the renewable sector need to do a better job in how they present their case if they want to compete with the red hot oil & gas sectors with investors.
While other parts of the world are busy actually building national Ultra High Voltage (UHV) transmission infrastructure the US continues to do noting more substantial than litigate. A UHV super grid would be able to move renewable energy from where it is abundant to where people live and work, and do so at an economic cost. This kind of national electric energy infrastructure would enable solar, wind, hydro and geothermal generated electric power to reach market. It is a critical piece of the kind of future energy infrastructure we will need in order to continue to prosper. John goes into a lot of detail and provides numerous links to examples and more in depth reading on this very important subject.
Interview with Solar Fred, who is a well known voice in the solar social media marketing space. The interview provides the reader with some insight into effective social media marketing, for solar and how effective a tool it can be if used well. It makes the point that in order to be effective and build trust social media marketers need to provide good information to the communities that they are trying to reach.
In this post John outlines two developments in the thermosolar concentrated solar power (CSP) arena that are enabling CSP to fulfill the role of baseload suppliers. Molten salt energy storage is naturally suited for CSP facilities and is quite efficient as an energy store — both in terms of low loss and in terms of capital expenditures (compared with batteries for example). By storing power in this way CSP plants can continue delivering power even after the sun has gone down. In addition by pairing CSP with stand-by combined-cycle natural gas generators greater overall reliability can be achieved.
The DOE’s “SunShot” initiative which is modeled after the highly successful Apollo moon shot program aims to spur innovations and rationalizations that will together slash the total system cost of solar photovoltaic systems by three quarters within this decade. If it manages to achieve these goals then solar PV would become cost competitive with other […]
Streamlining the building code process for solar installation could help rooftop solar reach price parity with the average price for electric power on the grid. This key price point is also known as grid parity. Permitting costs will add $1 billion to the price structure of solar over the next five years. This article poses the following question: With widely adopted standardization of best practices in solar system construction/installation in place and the 10-20 years of performance certification on actual operating systems in the field, why then is the permitting process stuck in time and why is solar treated as if it were still an experimental niche rarity that needed to prove itself before the building code bureaucrats can give it their thumbs up.
