The all-in-one energy storage solution for residential or commercial use everything you need to take control of your energy independence today.


The all-in-one energy storage solution for residential or commercial use everything you need to take control of your energy independence today.

What is an offgen ?

The OFFGEN is an all-in-one energy storage solution for residential or commercial use. With its built-in solar inverter, power management system and lithium-ion batteries, this solution is everything you need to produce, store and use your own electricity. Sign up to learn more, arrange a site visit or talk to one of our team about whether the OFFGEN is right for you.


Take control of your energy

With the ability to harness and store your own solar energy, there is no better way to become energy independent. The OFFGEN energy storage system allows you to monitor your electricity usage at any time of the day giving you control of when and how you use energy.

extended life and long-term ROI

The OFFGEN is designed to work alongside your solar system throughout its lifespan. Unlike other solutions on the market that last up to as little as 5-6 years, the OFFGEN unit matches your solar PV installation's lifespan, lasting up to 20 years! This provides you with a unique long-term ROI, backed by our 10-year service-backed warranty.


Aceleron believes in a global-local model, which means we are intentional about providing localised support for all our customers. With the OFFGEN, customers don’t have to worry about shipping their system overseas for repairs or maintenance, as these can be done locally via our partners.

SAFETY & reliability are our priorities

Knowing that our products are safe and reliable allows not only our customers but also all of us at Aceleron to sleep well at night. Therefore, we made sure that our batteries have passed the highest market standards – for both consumer use and transportation. We included safety features, such as intelligent management that provide further security in any events.

Bring peace of mind to your home

With the OFFGEN you have greater energy security and resilience in the face of inclement weather or power outages, offering you one less thing to worry about. Our product is safe, passing the highest industry certifications, and committed to sustainability – including using recyclable materials and making sure that our products are serviceable, upgradeable, reusable and recyclable, thus reducing the environmental footprint!

Become energy independent

With the OFFGEN, you are no longer at the mercy of the utility companies or susceptible to fluctuating oil prices.
Experience the freedom of choice when it comes to how you power your home and enjoy the luxury of never staying in the dark again.

Fill out our form and we will call you back within a week to arrange a site visit for your home and evaluate whether the OFFGEN is the right solution for you.

Create your
solar future.


The OFFGEN project was born and nurtured in Barbados, where Aceleron's Co-founder and CTO, Carlton Cummins, has been researching and prototyping batteries in order to make the lithium battery technology more accessible within the Caribbean. Learning about the challenges and systems on the island, he then went to co-found Aceleron Ltd. in the UK, alongside Dr. Amrit Chandan. This enabled them to realise their vision for accessible, sustainable and industry-leading energy storage solutions and presented them with the opportunity to bring one of their products back to the Caribbean!

Carlton Cummins,
Co-founder and CTO of Aceleron Ltd.