Related Clues:

• Calculator type
• Certain renewable
• ''Green'' power
• Like some roof panels
• One kind of panel
• Greenhouse heat
• Rise high over lake, like a star
• Of our star
• Sun's rise over far side of hill
• Mediaeval chamber's revolutionary system
• Steve Harley's was of the Cockney kind
• Plane sheltering fifty from the sun
• Notes weather at last is sunny?
• Particular star's chamber in old house
• Sun's getting to climb high across lake