With over 20 years of experience in renewable energy, Andrew Cosgrove, Director at ACOS Renewable Energy, has seen the industry evolve from the early days of ground source heat pumps to today’s advanced combination of Air Source Heat Pumps, Solar PV, Solar Thermal, and Battery Storage.
In this exclusive interview with GTEC, Andrew shares how integrating these technologies can create highly efficient, low-cost heating systems — especially when paired with smart use of electricity tariffs and battery storage.
For Andrew, maintaining professional qualifications is key to business success. He explains that staying certified isn’t just about meeting industry requirements — it’s about keeping pace with new standards, technologies, and design methods that ensure every installation runs efficiently and reliably.
Having returned to GTEC for training multiple times over the years, Andrew values the clear, practical instruction and the opportunity to refresh his knowledge every five years. He highlights how the courses cover everything from manufacturer updates to system design and efficiency improvements — helping installers stay at the cutting edge of a fast-moving industry.
“GTEC’s always given good, clear, precise instruction across everything I’ve done here — Air Source, Ground Source, Solar PV, Battery Storage. I’d recommend them to anyone.”
💡 Now’s the perfect time to train: GTEC’s Air Source Heat Pump Training Courses are currently £500 funded, helping more installers gain the qualifications they need to enter or advance in the renewables sector.
🎥 Watch the full interview below to hear Andrew’s thoughts on training, technology, and the future of renewable heating.