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Haigh Engineering solar energy investment delivered seamlessly by Harvest Green Developments Ltd.

Haigh Engineering are delighted to announce a major step in further improving sustainable manufacturing with solar energy from their factory in Ross-on-Wye. This is the first of a number of such investments on the site which aim to reduce the company’s usage of energy from the grid, improve overall sustainability and help Haigh’s customers on their various net zero journeys. 

Key Facts

The significant investment in the solar array produces up to 50% of the site’s electricity requirements over the summer and is estimated to provide at least a quarter of current total energy produced over a full typical year. 

This solution will be capable of generating up to 232kW of power at peak production levels, generating 175,290kWh/PA to offset 68 tonnes of carbon dioxide per annum – the equivalent of planting 2000 trees each year!

Sector: Engineering

Haigh is dedicated to delivering the best in solids handling and waste processing systems, from initial design to ongoing maintenance.

Their team of engineers have provided countless clients with award winning macerators and sewage treatment solutions around the world, earning them a reputation as an industry leader.

Install Type

Optimised Solar PV system


580 x Trina Solar TSM-400DE09.08

1 x SolarEdge SE100K inverter

1 x SolarEdge SE90K inverter

290 x SolarEdge P801 optimisers

Harvest Green Developments Ltd delivered a turnkey solar energy project for Haigh, completing it on time and to budget despite challenges in the market such as increasing energy prices and supply chain part availability. 

The success of the project has paved the way for additional development which will benefit the business and the environment. 

Haigh’s customers are demanding transparency in supply chains as to the lifetime carbon impact of capital equipment. The company has historically focused on minimising the operating energy usage of its products, resulting in the lowest operating carbon footprint in its category. 

With new carbon accounting methodologies being used in the industry, Haigh aims to properly reflect the benefits of renewable energy in the manufacturing process. 

Whilst hoping for a decrease in energy prices, Haigh’s investment in becoming more self-sufficient also brings long-term stability from a cost perspective, in line with the company’s commitment to UK manufacturing while supporting employment in the local area.

Jacob Shepherd, Haigh’s Managing Director notes “The Harvest Green Developments team have delivered a great installation for us, they were clear and straightforward to work with from initial proposal right through to commissioning the system.”