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Trusted Renewable Energy Solutions in Horsham
Established in 2011, Baystar Energy has emerged as a trusted leader in renewable energy solutions across the South and South-East UK. Under the leadership of Jonny Starmer and Jason Bayliss, our team of certified engineers, technicians, and designers delivers bespoke installations of ground source, air source, and water source heat pumps, solar PV systems, biomass boilers, and battery storage. With a focus on sustainability and cost-efficiency, we serve homeowners, commercial properties, and national estates, including partnerships with the National Trust.

Our commitment to quality is reflected in our MCS-certified installations, comprehensive aftercare, and adherence to the latest industry standards. We prioritise tailored solutions, ensuring systems integrate seamlessly with both modern and heritage properties while maximising energy efficiency. Our 12 years of experience, combined with participation in government incentive schemes like the Boiler Upgrade Scheme, underscores our dedication to reducing carbon footprints and energy costs for clients.
Services
Heat Pumps Solar Panels Biomass Systems Commercial Renewables Maintenance
Details
  • Year established: 2011
Highlights and features
  • We offer 12 years of specialised expertise in renewable energy systems.
  • Our team includes MCS-certified engineers and technical specialists.
  • We provide bespoke solutions for listed buildings and large estates.
  • We partner with the National Trust on heritage-sensitive projects.
  • We offer 24/7 emergency repair and maintenance services.
Associations and certifications
  • MCS
What people say
Prompt service Bespoke solutions Expert knowledge Reliable installations Excellent aftercare
Services
Air Source Heat Pumps
Air source heat pumps extract warmth from ambient air to provide heating and hot water. Our installations use UK-climate-optimised units to ensure efficiency even in cold conditions. Systems include defrost mechanisms and smart controls for year-round reliability. Ideal for properties without space for ground arrays.
Solar Panel Installation
We install photovoltaic systems that convert sunlight into electricity, reducing energy bills and grid dependency. Our designs incorporate battery storage and EV charging integration. Projects range from residential rooftops to large commercial arrays, with DNO registration and manufacturer warranties included.
Biomass Systems
Biomass boilers burn organic matter like wood pellets to generate heat. We supply automated systems for minimal maintenance, suitable for domestic and commercial properties. Installations include plant room design, fuel storage solutions, and compliance with RHI maintenance standards.
Commercial Renewables
We deliver renewable systems for industrial estates, swimming pools, and council buildings. Services include heat loss assessments, plantroom installations, and shared ground loop schemes. Projects integrate with existing infrastructure while meeting commercial efficiency and compliance requirements.
Renewable Maintenance
Our maintenance contracts ensure optimal performance of heat pumps, solar arrays, and biomass systems. Services include annual inspections, refrigerant checks, and emergency repairs. Engineers are F-Gas and MCS certified, with priority response for contract holders.
People
Jonny Starmer
Commercial Director
A Chartered Institute of Building member with expertise in renewable integration for new builds and retrofits. Leads commercial strategy and project oversight.
Jason Bayliss
Technical Director
Renewable heating specialist with technical qualifications in heat pump systems. Oversees technical design and equipment selection.
Bertie Beanland
Business Development Director
Brings 12 years of renewables sector experience, focusing on ground source heat pumps and supply chain logistics.
Nick Jones
Technical Lead Engineer
Service engineer since 2014 with expertise in mechanical systems and client relationship management for maintenance contracts.
Sam Bishop
Electrical Engineer
NICEIC-certified electrical supervisor leading solar installations and compliance documentation for renewable systems.
Questions
What renewable energy systems does Baystar install?
We install air source, ground source, and water source heat pumps, solar PV panels, biomass boilers, and battery storage systems for domestic and commercial properties.
Do Baystar's installations qualify for government grants?
Yes, our heat pump installations qualify for the Boiler Upgrade Scheme, offering £7,500 towards air source and ground source systems.
Can Baystar service non-Baystar installed systems?
Yes, our certified engineers provide maintenance and repairs for all brands of heat pumps and renewable systems, regardless of original installer.
How long does a solar panel installation take?
Residential installations typically take 1-3 weeks, including scaffolding, panel fitting, and electrical integration with existing systems.
Does Baystar offer emergency repair services?
Yes, we provide 24/7 emergency call-outs for heat pump and renewable system failures, with priority given to maintenance contract holders.
What areas does Baystar cover?
We operate across the South and South-East UK, including Sussex, Surrey, Kent, Hampshire, and London, with projects nationwide.
Reviews (6)
Wayne Schofield
Jan 30, 2024 Report
Jason, Jonny, and their team proved to be delightful individuals to work with. Not only were their prices competitive, but their eagerness to satisfy was evident throughout the project. The GSHP (ecoforest) they installed has consistently provided warmth and hot water for over 2 years. We wholeheartedly endorse them for any energy-related endeavor you may have.
Jack Marsh
Jul 02, 2023 Report
Outstanding company! Each interaction I've had with them has been both accurate and professional. They truly grasped my requirements. I highly recommend them to everyone.
Charles
Jun 28, 2023 Report
Baystar completed the installation of an air source heat pump and solar PV on our house. It's all working very well, Baystar were very good at managing the supply chain issues and delivering on site. Very happy with the system
Mark Rowles
Jun 22, 2023 Report
Excellent, professional and knowledgeable service may be anticipated from Baystar, in a renewables world that as developers, still feels like the wild west! We feel that both your personal service and that of the broader team towards us earlier this year, respecting and aiding our former client, has been exemplary. Experienced servicing followed, simply streets ahead of others with whom our business has worked, as early adopters, since 2009.
Nicholas Payne
May 26, 2023 Report
Baystar were exceptionally efficient in resolving two problems with my heat engine in very cold weather in February 2023, and persevered with their visits, until there was a satisfactory result. Another supplier had simply been sitting on their hands for several weeks and I was very grateful indeed to have my heat restored! Highly recommended. Highly Recommended for technichal and service skils
Paul Dubrow
Jun 29, 2016 Report
Glossy website, with engaging testimonials encouraged me to enquire with Baystar about an open water source heat pump system for a barn I am converting for myself. From the initial lukewarm response, haphazard communication, regular changes of contact personnel due to staff turnover, to a final e-mail explaining that the company was "concentrating on our larger commercial jobs", Baystar have fabulously underperformed. Need I say more ?