Energy Security

Goal 2: Development of Prognostics and Health Management

Degradation Signature Characterization
The data from the characterization of parts before and after stress testing will be analyzed for useful fingerprints that indicate degradation and remaining lifetime. One approach is to apply the characterization results to simulations to look for corresponding changes in behavioral parameters of the inverters. Figure 1 describes one potential behavioral parameter, voltage […]

By |December 18th, 2012|Comments Off on Goal 2: Development of Prognostics and Health Management

Goal 1: Degradation Study of Components and Subsystems

Thermal Management Subsystem
Thermal management of inverter systems and internal components is critical for ensuring lasting performance reliability. Research is currently being carried out to more accurately characterize inverter components and system topologies of varying scales. This work includes:

Thermal/fluid phenomena of internal inverter components, and their impact on electrical performance and reliability.

Finite Element Analysis (FEA)/Computational Fluid […]

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Wind & Water Power Newsletter

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SunShot

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CSP Resources

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User Fees for NSTTF Capabilities

A site access fee is charged for all projects. The fee includes such things as office space, phone, internet access, secretarial support, lab space, and use of conference rooms.

$1200/month ($300/week) for 1-4 people on site
$1750/month ($437.50/week) for 5-8 people on site
$2225/month ($556.25/week) for 9-12 people on site

Use of the site equipment – A […]

By |September 26th, 2012|Comments Off on User Fees for NSTTF Capabilities

Optics Lab

Optical equipment located in this lab space and tools developed, using DOE funds, allows for optical characterization of heliostat and dish facets. These flexible analytical tools, along with the on-site expertise currently support the evaluation and development of low-cost, high-performance heliostat facets. The tools are also applicable to assembly/production line environments. In addition, field support […]

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Dish Test Facility

This area of the site allows industry partners to install full-scale solar dishes for long-term reliability testing and evaluation. There are currently ten SES dishes and six Infinia dishes at this location. The site also includes two SNL-developed solar dishes that are available for research. Solar dishes can be used for the high-temperature portions of […]

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Concentrated Photovoltaics

SNL’s Photovoltaic and Distributed Systems Integration department and staff from the NSTTF worked with SunPower to install 110 kWe of SunPower’s new C7 low-concentration PV systems at the NSTTF. This is the first demonstration of a utility-size CPV test at SNL. The PV Reliability group worked closely with SunPower during the development and early implementation […]

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Regional Test Facility

Sandia (with DOE support) recently installed infrastructure on eight acres of the National Solar Thermal Test Facility (NSTTF) to support US industry in actual field test and validation of US-based PV modules and systems designs to accelerate bankability assessments. The initial phase has 1 MWe connectivity to the utility system. The second phase, an additional […]

By |September 26th, 2012|Comments Off on Regional Test Facility