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Our Team

Solstice Renewables was founded in 2013 to develop solar parks across the UK, with a particular emphasis on strong community benefits and ecological enhancement. The team brings a wealth of experience in large-scale solar development and renewables in general, with backgrounds in farming, social impact businesses, construction and finance.

The team

HL-smallHarry Lopes, Director

With a background in farming, Harry trained as a chartered accountant and continued to work in finance from 2005 to 2011. Harry’s belief in the urgent need to switch from fossil fuels to clean renewable energy led him to move into renewable energy development in early 2011. Since then Harry has been project-managing and developing solar and wind projects, with a focus on large-scale solar sites most recently.


GM smallGiovanni Maruca, Director

An American who made the UK his home 14 years ago, Giovanni has many years’ experience managing solar PV developments in the UK, firstly with Low Carbon Solar then British Solar Renewables. Before entering the solar industry he worked in the film business, managing digital media distribution deals for Sony Pictures and Paramount Pictures. Before that he ran the sales and marketing for a NASDAQ-listed software engineering company.


During the company’s operation from 2013 to 2016, the team encompassed development, planning and project managers and coordinators, with consultants providing planning support, community engagement, PR, and contracts expertise. Guy Parker of Wychwood Biodiversity continues to oversee the implementation of the ecological management plans at all the sites Solstice developed; Guy is a leader in the field of biodiversity management within solar parks and wrote the BRE National Solar Centre’s Biodiversity Guidance for Solar Developments

Lorna Lopes continues to run our educational programmes at operational solar farms; she holds a Masters in Education; worked at the not-for-profit Centre for Social Justice and the charity Only Connect and is also a School Governor.



Berti Investments Ltd

Berti Investments is one of the leading UK social impact investors, backed by the Bertha Foundation; a family Foundation initiated by the Tabatznik family. Seth Tabatznik, who is responsible for running Berti Investments and the investment in Solstice Renewables, is a passionate environmentalist and is building his own solar farm at his home in Somerset.

“We invest solely in UK-based environmentally-focused businesses that benefit society. Sustainable profitability is important, but our primary objective is environmental impact. Profits generated by Berti will be reinvested, not distributed to shareholders. Our personal approach allows us flexibility within our investments” – Seth Tabatznik, Berti Investments.”


Gaiger Bros Ltd

Sam, Graham and James Gaiger have personally invested in Solstice Renewables. They are the third generation to run the family business Gaiger Bros Ltd, a highly respected Wiltshire-based construction and development company.