Renewable Energy Installer May 2016 | Page 23

Commercial solar PV developer EvoEnergy has completed the UK’s largest solar carport at a leisure centre owned by Nottingham City Council. The 354-panel, 88.5kWp system was designed and installed by EvoEnergy across nine separate, specially built roofs at Ken Martin Leisure Centre. It is the latest energy-efficiency measure to be taken by the city council and was built following the success of its first solar carport – the 67kWp system at Harvey Hadden Sports Village, which EvoEnergy delivered last year. The array at Ken Martin should cut the council’s carbon footprint by 41 tonnes a year, generating 79,874kWh of energy – 100 percent of which will be used on site. Michael Brien, project manager for EvoEnergy, said: “We’ve partnered with the council on numerous solar projects now since 2011. This time around we’ve helped them build the largest solar carport in the country; an accolade which really highlights the council’s commitment to energy efficiency.” The Ken Martin solar carport was fitted between November and January in time to beat the recent cut to the Feed-in Tariff (FiT). It will save the council around £10,000 a year on its energy bills, and should pay for itself within 11 years, after which it will earn Nottingham City Council an income for the remaining nine years of the FiT.Rather than using a traditional string setup, which only performs as well as the least efficient module, it uses SolarEdge optimisers connected to pairs of modules. Its heartbeat communication system lets individual panels talk directly to the inverter in pairs, so if one panel breaks or loses efficiency during the next two decades, only two in the array will be affected. Commercial UK’s largest solar carport at Nottingham leisure centre Yeo Valley’s Organic Farm goes even greener The UK’s most popular organic dairy brand, Yeo Valley, is expanding its use of renewable energy after switching to EV quad bikes. As an organic business, Yeo Valley prides itself on considering its impact on the environment in all aspects of its operation and as such turned to Eco Charger, a farming family-run business in North Devon, that has designed and developed a number of environmentally friendly, electric quad bikes ideal for large landowners, farmers and businesses like Yeo Valley. Yeo Valley has been using the Eco Charger Dominator on a daily basis on the farm over the past year. It provides quick and easy access around the Yeo Valley Organic Garden and also supports the team with their increasingly popular farm tours. Yeo Valley has 0.5MW of solar panels on the farm roof and therefore the Eco Charger provides zero CO2 emissions, as it can be powered renewably. This also keeps the running costs down to an absolute minimum. Furthermore, due to the lack of fuel, the vehicle emits no toxic fumes, meaning it’s ideal for the organic farm – it also runs very quietly and therefore doesn’t disturb the animals. Tim Mead, Chairman of Yeo Valley, said: “The Eco Charger has provided a reliable, cost-effective and, most importantly, environmentally friendly mode of transport for easily accessing all areas of the farm and it’s a great help with our farm tours. “I’d recommend an Eco Charger for anyone with daily transportation needs on their land as it’s been brilliant for us. It’s a hard-working, practical machine that’s easy to drive, doesn’t harm the environment and is ideal for working with animals and organic product – what more could you want?” Anaerobic digestion power on a tight schedule Stoneleigh-based Weltec Biopower UK has reported two new orders for agricultural biogas plant projects in England and Northern Ireland. Weltec is currently building a 500kW plant for Stephen Carson‘s agricultural enterprise near Strabane, Northern Ireland. The plant‘s two stainless-steel digesters (3,573m³ and 4,903m³) will be fed with 24,500t of cattle manure, whole plant silage, dry chicken dung, grass silage, sugar beets and small quantities of maize. The project is progressing smoothly, and the plant is set to go live and feed in power as early as summer 2016. Low Farm in Sherburn, England, also decided to have its 500kW biogas project built with Weltec technology. The fast construction time was an important factor for the clients in their decision making, along with the quality, the experience of the company and the strength of the ongoing biological support. Despite delayed project commencement and exceptionally wet weather, Weltec successfully completed the plant ahead of the tight Feed-in Tariff pre-accreditation deadline, ensuring long-term financial viability of the plant for the client. Weltec constructed the plant, based on a 3,573m³ stainless-steel digester, achieving G59 in September last year despite only starting work on site at the beginning of July 2015. www.renewableenergyinstaller.co.uk | 23