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John Huff/Staff photographer David Glover of Glover Plumbing and Heating Services, left, and George Horrocks of Harmony Energy Works use a solar pathfinder to calculate the optimal alignment of a solar hot water array at a home in Portsmouth Saturday morning.
SEAREI is a Community Partner with PAREI Plymouth Renewable Energy Initiative 49 Thornton Street Portsmouth, NH 03801 .searei@gmail.com www.searei.org