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Dig Energy, a Manchester, NH-based drilling technology firm, has raised $5 million in funding led by Azolla Ventures and Avila VC, among others. The company plans to use these funds to transition from field testing to pilot installations of its innovative geothermal drilling technology, which aims to make geothermal heating and cooling systems cost-competitive with fossil fuels. Their compact drilling solution could significantly reduce costs, potentially making geothermal systems more accessible and effective in reducing reliance on oil and gas.