Archive for grid technology

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A little dither here …

… and a little dither there, and pretty soon your whole electrical infrastructure is fried. Unless you believe in the grid fairies, strategic investments will have to be made and are politically smart (if you want your nation to continue to be a world leader).

Sandia, SunPower to cooperate on PV-to-grid modeling and tool development

Sandia, SunPower to cooperate on PV-to-grid modeling and tool development

Credit: Sunpower

Credit: SunPower

Sandia National Lab and SunPower Corp. say they have reached a new agreement on research into integrating utility-scale solar energy systems into the national electrical grid.

Although a news release about this new cooperative research and development agreement only mentions photovoltaic systems, I have to imagine that might have been a mistake since it would be pretty nearsighted of them to exclude concentrating solar power systems.

Regardless, the two entities have at least $1 million in funding from the DOE and another $1 million from the California Solar Initiative fund.

In an announcement from SNL, Terry Michalske, director of Energy and Security Systems at the lab, said, “This partnership will enable Sandia and SunPower to capitalize on their respective strengths and bring together PV modeling and analysis expertise with extensive system data to answer many of the urgent questions facing utility companies and their customers who are turning to clean, solar energy resources.”

Generally speaking, the point of their work is how to blend sources with volatile energy levels into a grid whose customers rely on steady levels of power.

Abraham Ellis, one of Sandia’s photovoltaic specialists said, “A question worth asking is: What are the possible impacts of connecting very large PV systems or a lot of smaller, distributed PV systems on the grid, and what are the solutions for mitigating these impacts? It’s not just a rhetorical question anymore. Part of the problem is that we lack specialized tools and data to properly assess the impact on the grid and evaluate mitigation alternatives. This partnership will help address those challenges.”

SunPower recently completed large PV systems for Yolo County, California, and on the South Side of Chicago, using its proprietary PV panels and solar-tracking system.

 

DOE jumps into smart grid tech with $4 billion and a call for standards

DOE jumps into smart grid tech with $4 billion and a call for standards


The Obama administration seems to have decided to let others share some of the Department of Energy’s glory and let Vice President Joe Biden and Commerce Secretary Gary Locke make the official announcement that DOE is preparing to release funds to develop the “Smart Grid.” Biden and Locke said the DOE is moving to quickly distribute nearly $3.4 billion for grid technology grants and $615 million for grid storage and monitoring.

The duo also announced that some sort of grid summit meeting will be held in nation’s capital around May 19-20. Smartly, it sounds like Energy Secretary Steven Chu will use the meeting to put national media focus on the benefits an advanced energy grid, plus put the squeeze on key private sector groups to unite around a set of standards so that the nation doesn’t end up with a lot of wasted talent going into a Blu-Ray versus HD DVD-type of competition.

According to the DOE, “industry leaders at the meeting will be expected to pledge to harmonize industry standards critical to developing the smart grid, commit to a timetable to reach a standards agreement and abide by the standards devised.”

There is a direct link to the Department of Commerce in this. NIST falls under the department’s purview and NIST has already been given the responsibility to facilitate the creation of grid standards.

Obviously, the idea is to think broadly and relatively far down the technology line so that the next grid generation is fully and easily capable of integrating existing and yet-unthought-of renewable energy sources with the electrical grid, in addition to having mega- and micromanagement features for both industry and consumers.

The $3.375 billion is being paid out under the DOE’s “Smart Grid Investment Grant Program.” The department says it is willing to tailor grant sizes to $500,000 to $20 million for large-scale grid technology items. The $615 million will be doled out in cost-sharing grants of $100,000 to $5 million for grid monitoring, energy storage and regional projects, and the agency is requiring a minimum 50-50 cost share. In either case, the DOE says grant proposals will be weighed using a competitive, merit-based process.

Currently, there isn’t a lot of detail about funding priorities for the large program, however more information is available about DOE’s interests in the smaller pool of funds. According to preliminary grant information, the DOE will be looking at “regionally unique demonstrations to verify smart grid technology viability, quantify smart grid costs and benefits, and validate new smart grid business models, at a scale that can be readily adapted and replicated around the country.” Ultimately, the DOE says it wants the regional projects to “embody essential and salient characteristics of each region and present a suite of use cases for national implementation and replication.”

Funding will be limited to three types of demonstration projects:

•    Regional demonstrations (smart grid costs and benefits, technology viability and new business models);

•    Utility-scale energy storage demonstrations (advanced battery systems, ultracapacitors, flywheels and compressed air energy systems) and congestion relief;

•    Grid monitoring demonstrations (phase measurement units).

Lastly, the DOE says the projects should be collaborations among utility companies, products and services suppliers, end users and state and municipal governments.