Taffykay writes: Concentrated Solar Power (CSP) offers significant benefits, but it's often prohibitively expensive. Paul Gauché from Stellenbosch University in South Africa hopes to change that with Helio 100, a series of 'plonkable' miniature heliostats that require no installation or concrete, and offer solar energy that's cheaper than diesel. The Guardian reports: "Helio100 is a pilot project with over 100 heliostats of 2.2 sq meters each, generating 150 Kilowatts (kW) of power in total – enough to power about 10 households. According to Gauché, the array is already cheaper than using diesel, the go-to fuel for most companies and businesses during regular power outages in the country.
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