Tuesday, September 21, 2010
Post # 41 - British Study Suggests That Smart Meters Are No Silver Bullet
The study, "Smart Metering: What Potential for Household Engagement," was prepared by Dr. Sarah Darby of the University of Oxford’s Environmental Change Institute. Dr. Darby examined motives and outcomes to date of smart metering programs in California, Italy, Sweden and the Netherlands, among others. She finds that there in fact is little hard evidence about smart meters can actually achieve.Her research shows that smart meters are being rolled out for different reasons in difference regions. In Italy and Sweden, for example, the focus has been on reducing fraud and providing accurate billing. In the Netherlands, Ireland and the UK, and to a lesser extent California, the intention is for smart metering to help users improve their energy efficiency and reduce demand. But in some of these regions, notably the Netherlands and California, efforts have been plagued by customer resistance to the gathering, monitoring and storing of personal data.
Dr. Darby believes that if the roll-out is not handled right, demand reduction will not necessarily flow from an improvement in information. In her judgment, what appears to count more than the smart meter itself is the message energy companies provide about energy use over time and trustworthy, relevant comparisons.
Thursday, September 16, 2010
Post # 40: Dutch Report Suggests Smart Meters Are No Silver Bullet
A recently concluded Dutch study suggests that smart meters and similar home energy monitoring devices may not be the silver bullet that guarantees substantial reductions in home energy use. In particular, the report – entitled “Home Energy Monitors: Impact Over the Medium-Term” and prepared by a research team from the Delft University of Technology – concludes that initial savings may not be sustainable over the long term.
The study team examined the behaviors of households where “Home Energy Management Systems" – which the report defines as “intermediary devices that can visualize, monitor and/or manage domestic gas and/or electricity consumption” – had been installed on a trial basis. The goal was to see whether the participants sustained changes in electricity consumption over 15 months. In particular, the team wanted to find out if early reductions in energy consumption were continued over a longer period.
Participation in the study – and the required installation of the “HEMS” devices – was voluntary. The team monitored a total of 304 participants over four months, and then gave them the option of retaining the monitor. Those who kept the monitor were surveyed again 11 months later.
The findings showed that there were initial savings in electricity consumption of an average of 7.8% over the first four months, but these savings were not sustained over the medium to long term. At the same time, the study also found that some people were more receptive to energy saving behavior changes than others and quickly developed new habits, giving them continuing substantial savings.
The authors believe that that more research is needed not just into the design and usability of home monitoring devises, but also on social science issues and contextual factors. The basic conclusion: installing energy monitors alone will not necessarily reduce electricity consumption.
Sunday, September 12, 2010
Post # 39 - Mixed Findings for Pacific Gas and Electric
A recently concluded investigation of the performance of smart meters installed by Pacific Gas & Electric finds that, while the meters are accurately measuring energy use, there are flaws in the way PG&E has handled customer complaints and monitored data transmitted by the new digital meters.
The investigation, conducted by Structure Consulting Group LLC on behalf of the California Public Utilities Commission, was mandated by the CPUC in response to a surge in complaints that blamed digital meters for high bills and other problems. The CPUC issued Structure’s report on September 2, 2010.
The report concludes that while PG&E's digital smart meters are accurate, the utility nonetheless has not done enough to educate customers about the switch. Moreover, the report finds that PG&E has not adequately responded to the full suite of data it gets from the meters.
Structure states that it tested 611 of PG&E's advanced meters, which were made by Landis+Gyr, and found that all met industry standards for accuracy (accuracy to plus or minus 2%, meaning usage must be recorded within a band that is 98% to 102% of the amount actually used). Structure also found the older electromechanical meters that are being replaced are less reliable than new digital meters. Of the 147 old meters tested, accuracy was 96%.
Structure also reviewed 1,378 electric Smart Meter complaints and performed in-depth customer interviews, finding issues with PG&E customer service management and adherence to industry best practices. For example, customer questions regarding Smart Meters and individual customer usage patterns were not effectively addressed by PG&E. In some cases, customers experienced multiple cancelled bills followed by re-billing, which exacerbated customer confusion and frustration.
In addition, customers indicated to Structure that there was a lack of communication and notification from PG&E about their smart meter installation. The report also said that the CPUC's own handling of certain consumer complaints created confusion for the customer when the CPUC deemed the complaint closed even though the customer was still not satisfied with or did not understand PG&E's resolution of their complaint.
At the same time it released Structure’s report, the CPUC issued a press release reflecting Structure’s mixed findings. Thus, CPUC President Michael R. Peevey said that while he was “happy to hear that PG&E's Smart Meters are functioning properly,” he was also “disturbed by PG&E's lack of customer service and responsiveness. [The CPUC] will ensure that PG&E improves their customer service, and we will also continue to improve our own complaint handling processes." Similarly, Commissioner Dian Grueneich said "the report is encouraging in terms of the performance of actual meter hardware. However, I am very concerned about PG&E's performance in terms of industry best practices and how in some of the best practices areas, PG&E's performance has actually declined."
So it appears that while PG&E can point to the potential of its state-of-the-art digital meters, the utility still has a lot of work to do,
Saturday, August 28, 2010
Post # 38 - Apparent Xcel Victory in Boulder
Saturday, August 21, 2010
Post # 37 - GIS and Smart Grid
But according to a new study by Ersi, a software development and services company providing GIS software, there currently is a wide range of GIS capability among utilities, with the largest often being the least smart grid ready. Ersi finds that data accuracy is spotty and often either incomplete or not GPS accurate. Interestingly, according to Ersi, the larger a utility’s size, the less likely it is to be “smart grid ready.”
Although Ersi obviously is not a disinterested bystander, its study contains interesting data about utility integration of GIS technology. In the last quarter of 2009, Ersi conducted what it calls a “smart-grid-readiness survey” of electric utilities around the world (though primarily located in the
But with respect to accuracy and integration, only one-third of the responding utilities say they update their GIS data within ten working days of completion. Overall, the study finds that utilities report a lag time of up to 90 days to move data from the field into the GIS. Moreover, the study found a strong inverse relation between company size and the time it takes before completed work is reflected in the GIS data base. The larger the company, the longer it takes -- although the difference is considerably greater between the “very large” and “large” utilities than between the “large” and “mid-size” utilities.
Twenty-five percent reported that there is information older than six months that is not reflected in their GIS. Perhaps most significantly, only 15 percent report “high confidence” – defined as an error rate of less than 2 percent – in their GIS data. And, as noted above, Ersi concludes that the larger the utility the less likely it was to be among the most “smart grid ready” companies.
Saturday, August 14, 2010
Post # 36 - BGE Across the Finish Line? (UPDATE)
The combination of the MPSC's conditional approval on Friday and BGE's acceptance today of the conditions also means that BGE has secured the $200 million grant for the project approved by the U.S. Department of Energy. BGE will now move forward and, following periodic reviews, seek incremental cost recovery from the PSC.
So, after some major stumbling blocks this summer, BGE's smart meter roll out begins. And so does continued MPSC review and oversight.
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8/14/2010 POST: Following up on my August 12th post, late yesterday (Friday, August 13th), the Maryland Public Service Commission issued an order conditionally approving Baltimore Gas & Electric's smart meter roll out. Assuming BGE accepts the MPSC's conditions, this will allow BGE to retain its $200 million grant for the project for the U.S. Department of Energy. As I noted in the prior post, DOE reportedly had set a August 16th deadline for BGE to receive necessary PSC approval.
Thursday, August 12, 2010
Post # 35 - BGE’s Smart Meters: Down to the Wire?
While not addressing BGE by name, the report expressly singles out BGE’s situation (emphasis added):
Regulatory approval is needed for a number of previously awarded Recovery Act projects to move forward. As the Department's programs have no control over the outcome of regulatory reviews, it is possible that some obligations could fall through in the coming months, not allowing the Department sufficient time to re-obligate funds. For example, a local public service commission recently denied approval of an application submitted by a Recovery Act recipient to install equipment provided through the Smart Grid Investment Grant Program. OE [DOE’s Office of Electricity Delivery and Energy Reliability] officials stated that while the recipient’s efforts to obtain regulatory approval are ongoing, OE may need to quickly re-obligate $200 million in Recovery Act funds if approval is not received.Press reports indicate that DOE has agreed to wait until August 16 – this Monday – to decide whether the agency will revoke BGE’s funding and send the money elsewhere. There is no indication where DOE will send the money if the PSC turns down BGE again. Either way, we (and BGE) will have to wait and see. But not for very long, apparently.