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Fitting solar panels on school roofs allows institutions to cut electricity bills while giving pupils a —tangibletangiblytangibilityintangible example of renewable energy in action. Many schools now —incorporateincorporationincorporatedincorporating the technology into science lessons, letting students monitor real-time output. Although the initial —outlayoutcomeoutsetoutput can be significant, the savings accumulated over subsequent years generally make the investment —thoroughlythoroughthoroughnessthroughly worthwhile.