Talk to OS Gen – 0333 242 3108 

Harnessing the power of on-site generation

What makes us different

OS Gen is an on-site generation expert that delivers material financial savings for our customers at no capital or ongoing cost while bringing down the barriers to a lower carbon future, making cleaner energy a viable, affordable option

Material Cost Savings

Through the efficiencies of on-site generation compared with the grid we sell discounted low carbon energy, typically saving our customers greater than 20% on their energy costs per annum.

OS Gen Fully Funded

By funding the capital for the technology, installation and ongoing service and maintenance, customer investment risk is zero.

Carbon Footprint Reduction

Through a combination of low carbon technologies and our OS Gen Sustainability programme, the energy generated has a net zero carbon footprint over the life of the agreement

Technology Expertise

OS Gen focus on low carbon efficient generation & storage technologies including Combined Heat & Power (CHP), Generators, Solar PV, Battery Storage and EV chargers.

Assessing your on-site generation needs

By quickly examining your energy usage and utility bills we can provide you with a proposal within 24 hours, confirming the viability and outlining the potential annual savings we can deliver at no cost to you. A follow up detailed site survey can then be arranged within the week to confirm.

Delivering lower carbon & cheaper energy

Through a combination of lower carbon technologies including Solar, CHP, Storage and supported by our internationally accredited carbon offsetting programmes, OS Gen continue to work with our customers to achieve their energy consumption, cost and sustainability targets.


low carbon electricity per annum


low carbon heat per annum


average energy cost savings per customer per annum

Reduce your carbon footprint & save money on your business energy today.

OS Gen on-site generation solutions

OS Gen work with clients to determine the appropriate technology or combination of technologies to deliver energy savings and to deliver the near and long term carbon reduction goals for the site. OS Gen provide advice on which combination of technologies and fuels deliver the best energy savings case and the associated carbon footprint for that solution. OS Gen will then procure, install, commission and maintain the selected solution at no cost to our customers.

Combined Heat and Power (CHP)

On-site CHP technology is a highly efficient way of generating both electricity and heat from a single fuel source such as natural gas, LPG, or biodiesel. The energy generated also delivers a lower carbon footprint and is recognised through the Governments CHPQA standard, where qualifying CHP solutions benefit from Carbon Change Levy (CCL) tax relief on the fuel used to generate the energy.


On-site generator technology is a highly efficient way of generating electricity from a single fuel source such as natural gas, LPG, or biodiesel. Energy produced by the generator is more efficient than that supplied by the National Grid, resulting in energy savings compared with those delivered through the grid.


Solar PV (Photovoltaic), is a common source of renewable electricity which saves carbon dioxide emissions and helps stop climate change. Balancing the seasonality effectiveness of Solar PV, ideally installed alongside baseload energy technologies including CHPs and Generators, provides a key generation solution on the path to Net Zero.

Battery Storage

Battery Storage solutions alongside baseload energy technologies such as CHPs and Generators and renewables, are becoming financially viable for storing and releasing electricity to match the demand peaks and troughs of a sites electricity needs.

EV Charging

As Petrol and Diesel cars are phased out and replaced with Electric vehicles (EV), businesses are installing more and more EV Charger solutions on their sites. This in turn increases the demand for electricity. Integrating EV charging solutions with correctly sized baseload technologies such as CHPs and Generators plus renewables is key to managing this increased electricity demand.

Micro Turbine

Micro-wind turbines generate clean renewable energy and are one of the most cost-effective sources of electricity. However, installation challenges include noise and aesthetics. Like solar power, wind power is also intermittent, meaning that turbines are reliant on weather and therefore aren’t capable of generating electricity 24/7. Installing micro-wind turbine solution with other baseload technologies will give a more effective balance of energy generation and lower carbon footprint.

Our Proposition

OS Gen partner with organisations whose philosophy is to work with energy experts who will actively manage their energy technology choices from assessment and procurement through to support and refreshment.

OS Gen provide and manage all aspects of the energy generation risk, including capital funding and support costs.

The customer receives material energy savings through a long term Power Purchase Agreement (PPA) with OS Gen.

Recent Case studies
Our client installations can be found across public and private industry sectors including, Health & Fitness, Hospitality & Leisure, Care & Retirement Homes and Manufacturing.

Health & Fitness

Barrow Park Leisure Centre saves over £30k per year with low carbon CHP solution

What our clients say...

"OS Gen provides Barrow Park with a significant discount on our energy costs. With no requirement for us to purchase, install or maintain the CHP solution, this frees up capital to spend on our front-line services and further improve the unique services we provide for our customers."
For HICA it is essential that our Care and Retirement Villages provide the most comfortable environment for our residents. The financial and carbon savings we get can be used to invest in our front-line care. With no upfront capital required, the decision was simple”
"Our relationship with OS Gen is helping us to substantially reduce our energy costs and reduce our carbon footprint. The risk-free solution provided, including zero capital and ongoing costs made this a simple business and environmental decision for us”. "


Take a look at how OS Gen has helped businesses strive for energy sustainability. Contact Os Gen on 0333 242 3108

Contact OS Gen today

Contact OS Gen on 0333 242 3108 today or fill in out online contact form and a member of staff will be in touch.

Save money, carbon footprint and efficiency on your business energy today.