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Saturday, June 15th, 2024

    Time Event
    1:25a
    Electricity Bills Forecasted To Climb With Summer Heat
    The Energy Information Administration (EIA) expects Americans' monthly electricity bills to average $173 between June through August, compared to $168 last summer. "The slight bump in costs comes from consumers cranking up their air conditioning more to cope with a warmer season than last year," writes The Verge's Justine Calma. "Bills would have jumped higher, if not for lower residential electricity prices helping to balance out some of the increased energy use from air conditioning." From the report: Some regions are likely to be harder hit by the weather than others. Because of heat and humidity along the Gulf Coast, residents in Southern states typically use the most electricity in the summer to cool their homes. The Pacific Coast, meanwhile, faces the biggest potential percentage increase in retail electricity prices in the nation -- a 7 percent jump since last year. Wholesale electricity costs there have risen since 2022, in part because of a heat and drought-induced shortfall in hydroelectricity generation. Households along the Pacific could see their electricity bills go up an average of $11 per month this summer, according to the EIA. To be sure, the EIA says that weather is "the main source of uncertainty" in its forecasts for folks' utility bills. If this summer winds up being hotter than expected, households could wind up paying even more. Residential electricity use typically peaks in the summer for most of the US because of air conditioning. Extreme heat can even trigger power outages if demand suddenly rises too sharply. California, the Southwest, the Midwest, Texas, and New England are at "elevated risk" of electricity supply shortages during any extreme weather this summer, according to an assessment (PDF) by the North American Electric Reliability Corporation.

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    5:34p
    Solar Modules Deployed In France In 1992 Still Provide 79.5% of Original Output
    French photovoltaics group Hespul tested solar panels installed in 1992, reports PV Magazine: The testing showed that the modules still produce on average 79.5% of their initial power after 31 years of operation. In a previous testing carried out 11 years ago, the panels were found to produce 91.7% of their initial power. "This result exceeds the performance promised by the manufacturers who said the panels would have maintained 80% of their output after 25 years," said Hespul. The drop in performance is on average 20.5%, or 0.66% per year over 31 years, and 1.11% per year over the last 11 years... Another more recent study carried out by the US Department of Energy's National Renewable Energy Laboratory (NREL) on 1,700 American sites totaling 7.2 GW of power, showed a median degradation of around -0.75%/year. Moveover, another research study focused on 4,300 residential installations in operation in Europe and used different data processing methodologies. Depending on the methods, a median loss of -0.36% to -0.67%/year was obtained. Thanks to long-time Slashdot reader storkus for sharing the news.

    Read more of this story at Slashdot.

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