What are HEMS?
A Home Energy Management System (HEMS) is an innovative solution designed to optimise energy use in a home, especially when integrated with photovoltaic (PV) systems and battery storage. HEMS allows monitoring and control of energy generation, storage, and consumption, enhancing the home's energy efficiency and reducing electricity costs by allowing connection to virtual power plants and secondary trading markets.

Introducing the Levelise Hub
Buy and sell electricity smarter, save and earn on average £300 more!
Let the new Levelise HEMS make more money and savings for you from your solar PV system. This innovative device can pick the lowest electricity rates, monitor, control and manage your home energy, and connect to virtual power plants and secondary trading markets.
Plus, you can get your Levelise Hubs for free for a limited time!
How does the Levelise Hub work?
Generate solar energy
Your photovoltaic system generates clean, renewable electricity from the sun
Make the best use of stored electricity
Your battery stores the electricity that your PV produces, that is not immediately consumed. Levelise optimises how that stored electricity is used in your house so you minimise waste.
Trade at the best times
The Levelise app provides you with insights on savings and trades electricity at the best times for you
Earn money from your battery
Levelise allows you to participate in their Virtual Power Plant and to access secondary trading markets usually available only to large commerical power plants. What you earn they pay you every month by direct debit.
How does it work?
Insert your address in the search bar and pin your roof
We compare prices from +X local installers to find the best projects for you
Book a free consultation with a local consultant to explore your project options
Why Otovo?
Technology enabled
Our customer journey is fast and intuitive, with personalised offers, price transparency, and fast response times. Our app helps you see the installation stages, manage documentation, and system performance once it is installed.
Best value for money
In Jan 2024 our systems were £1000 cheaper than the national average (MCS); in Feb 2024 16% cheaper. If you are able to find a cheaper quote we will price-match it! Terms and conditions apply, please see FAQ.
A partner you can trust
Guided by Scandinavian values, we offer high-quality solutions, confirmed by reviews on Trustpilot and Google.
Testimonials
"I can only recommend their service. The quality and efficiency of the panels are the best I have found. Moreover, for the same quality they offered me the best prices compared to other quotes I have requested." - John, D.
"Great products at good prices. Something that was missing in this market and that greatly assists the end customer in choosing the product. I didn't have to do anything; they handled all the bureaucratic and design aspects." - Ellie, O.
Over 25,000 PV installations across Europe
Otovo has installed over 25,000 solar systems across 13 European countries.
Wondering what sets us apart?
- Unbeatable price-performance ratio: Our marketplace model compares prices for you, ensuring the best deal.
- Unmatched flexibility: Choose to buy or rent with no down payment.
- Scandinavian reliability combined with local expertise from certified solar installers in your region.
Experience the difference with Otovo!

Save/earn £300 more per year
Having a Levelise system saves and earns an average customer £300 more per year. This is based on Levelise calculations on a household that uses 3000 kWh electricity/year, with a solar PV system that generates 4400 kWh/year and has a 5 kWh battery attached. Actual savings may vary according to your annual consumption and system size/outputs.
How does Levelise generate this increase? Without a Levelise your system savings are expected to be £600 from self consumption + £200 from exporting. With a Levelise you could earn an £50 from increased battery; £150 by taking advantage of peak/low pricing from the grid; and £100 in services to the National Grid.

**Terms and Conditions for Free Levelise Promotion**
**Promotion Period:**
This sales promotion is valid until 31 August 2024. To qualify, customers must sign their offer by this date.
**Eligibility:**
1. The free Levelise system offer is available exclusively for new customers purchasing an Otovo solar PV with battery system or an Otovo battery-only system.
2. Retrofitting of a Levelise system for free is not available to past customers unless they contract for a new battery system or a new solar PV with battery system.
3. Only compatible brands and hardware are eligible for this promotion. Attachment of a Levelise system may require the change of compatible brand and/or hardware of the solar PV and battery system.
**Value and Cash Terms:**
1. The free Levelise system is valued at £599.
2. There is no cash value or cash refund available for the free Levelise system.
**Installation Requirements:**
1. The attachment of a Levelise system is subject to compatibility with the existing solar PV and battery system.
2. If a system or house is not compatible for a Levelise system, no cash value, refund, or discount will be provided.
**Smart Export Guarantee (SEG) Tariff:**
1. Customers without a solar PV system may have limited ability to apply for an export Smart Export Guarantee (SEG) tariff.
2. The savings from selling electricity are dependent on this export tariff and may vary.
**Savings Calculation:**
1. The additional average savings of £300/year are based on the following estimates provided by Levelise:
- Annual household electricity consumption: 3000 kWh
- Solar generation: 4400 kWh
- Battery capacity: 5 kWh
2. Actual savings may vary based on secondary markets and electricity tariffs, which are subject to change.
**General Terms:**
1. This promotion cannot be combined with any other offer or discount.
2. Otovo reserves the right to modify or cancel this promotion at any time without prior notice.
3. By participating in this promotion, customers agree to these terms and conditions.
For further details or inquiries, please contact Otovo customer service at sun@otovo.co.uk