Minnesota professor works on hybrid hydraulic project
Hybrid hydraulic vehicles have recently been built as the new model for large vehicles that start and stop frequently, such as delivery trucks.
But mechanical engineering professor Kim Stelson says he hopes to develop hydraulic technology for small passenger cars.
Hydraulic hybrids store energy in the form of compressed gas, while electric hybrids store electricity in a battery.
Stelson says he'd like to test the technology by building a hybrid hydraulic Metro Transit bus. The funding for the project still has to be worked out, but Stelson says such a bus would get 10 miles per gallon as compared to about three that most buses get now.
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Only one in 10 utility firms prioritise renewable electricity – global study
LONDON - Only one in 10 of the world’s electric utility companies are prioritising investment in clean renewable energy over growing their capacity of fossil fuel power plants, according to research from the University of Oxford.
The study of more than 3,000 utilities found most remain heavily invested in fossil fuels despite international efforts to reduce greenhouse gas emissions, and some are actively expanding their portfolio of polluting power plants.
The majority of the utility companies, many of which are state owned, have made little change to their generation portfolio in recent years.
Only 10% of the companies in the…
