Simplify Solar & Storage
Installations with
Joos Box
A powerful all-in-one, delivering time savings for installers, high performance and safety for homeowners
Contractors: Save Time and Deliver
Quality in One Day
Simplicity
Single piece of equipment for easy installation
Efficiency
Pre-commissioning capabilities—finish projects faster
Productivity
Install and commission more solar and storage systems in a day
Durability
Outdoor and garage installations are made easier and safer
Homeowners: Long-Term Savings and Year-Round Performance
Safety
Active fire suppression, tamper alarm, and IK10 impact-resistant steel
Warranty
10-year warranty for peace of mind
Efficiency
Climate control heating & cooling ensures year round optimal performance
Save More cash
Charge with solar and low-tariff energy to maximise savings
Emergency Backup
No additional Gateway module required–EPS is built-in.
Smart Management
Compatible with SolarMAN Smart
energy app for intelligent
monitoring
Joos Box: Built for Contractors,
Designed for Homeowners
Everything contractors and homeowners need in one box
LiFePO4 Battery 5 or 10 kWh
Hybrid Solar Inverter 3.6 / 5 / 8 kW options
7 kW AC EV
Charger
Storm-proof IP55 Rating without added cover
MCB Switchgear & Generation Meter
AC & DC Protection
IK10 Impact Resistant Steel
Fire Suppression System
All-season heating & cooling
Anti-Tamper Lock & Alarm
LiFePO4 Battery 5 or 10 kWh
Hybrid Solar Inverter 3.6 / 5 / 8 kW options
7 kW AC EV
Charger
Storm-proof IP55 Rating without added cover
MCB Switchgear & Generation Meter
AC & DC Protection
IK10 Impact Resistant Steel
Fire Suppression System
All-Season Heating & Cooling
Anti-Tamper Lock & Alarm
Integrated 7 kW EV Charger option
32A Type 2 EV charger complete with Hybrid Inverter & LiFePO4 Battery all in one neat box
The Most Complete, Easy-to-Install Solar Storage Solution
Time Saving
Streamlined installation—ideal for contractors
Components
No extra components needed for safety features
Durability
IP55-rated for outdoor use—safe in any weather
Reliability
Compliant with PAS 63100:2024 giving installers and homeowners long term peace of mind
What Installers and Homeowners
Are Saying
What Installers and Homeowners
Are Saying
Protecting your business
Over the last 20 years, electricity prices have gone up by an average of 5.5% each year, even before the energy crisis
We’ve used that same increase for our projections and with fixed monthly Solar Subscription payments your business is safe from price hikes and your savings grow as time goes on
FAQs
A solar subscription is a 5-10 year plan which gives you everything you need to save on your energy bill with solar.
It covers the design, supply, financing, and installation of a custom solar and battery storage system for your business. It includes ongoing monitoring and maintenance throughout the entire subscription period, managed by: Green Assured.
A solar subscription offers affordable, long-term financing that spreads the cost of your solar and battery system over 5-10 years. Instead of paying a lump sum upfront, you make smaller monthly payments, allowing you to start saving on your energy bills from day one.
We only ask for a small application fee* to consult with your regional District Network Operator about connecting the proposed solar system, which will be deducted from your first monthly payment.
After the subscription ends, you’ll own the system outright and continue to benefit from reduced energy costs. Solar arrays typically have 25-year warranties and can last much longer, so you’ll be able to leverage the savings for many years.
Our cutting-edge solar and battery equipment is compatible with export tariffs, letting you sell any excess energy back to the grid and boost your savings even further.
* Application fees are typically around £50 but may increase with larger system sizes.
A Solar Subscription is an ideal solution for businesses looking to cut energy costs without a large upfront investment.
Maintenance and insurance coverage for the entire duration of a tailored subscription plan provides peace of mind, ensuring no unexpected expenses along the way, and you reap the benefits of reduced energy bills.
Your business must be based in England, Scotland or Wales to be eligible.
Green Assured, will own the system until the subscription ends.
Although subscriptions last 5-10 years, you can pay off the full balance and end the contract agreement anytime—without incurring extra fees or penalties.
If you settle the contract agreement amount early, you’ll only need to pay the remaining balance. Monitoring and maintenance for the solution will be included in the early redemption payment for the remaining term of the agreed contract agreement.
Please note that monitoring and maintenance ends if you end your subscription early.
Start now by sharing your information in the webform below for a free consultation and a tailored proposal to be emailed to you.
A solar subscription is a 5-10 year plan which gives you everything you need to save on your energy bill with solar.
It covers the design, supply, financing, and installation of a custom solar and battery storage system for your business. It includes ongoing monitoring and maintenance throughout the entire subscription period, managed by our partners: Green Assured.
A solar subscription offers affordable, long-term financing that spreads the cost of your solar and battery system over 5-10 years. Instead of paying a lump sum upfront, you make smaller monthly payments, allowing you to start saving on your energy bills from day one.
We only ask for a small application fee* to consult with your regional District Network Operator about connecting the proposed solar system, which will be deducted from you first monthly payment.
After the subscription ends, you’ll own the system outright and continue to benefit from reduced energy costs. Solar arrays typically last have 25 year warranties and can last much longer s, so you’ll be able to leverage the savings for many years.
Our cutting-edge solar and battery equipment is compatible with export tariffs, letting you sell any excess energy back to the grid and boost your savings even further.
• Typically around £50 but may increase with larger system sizes.
A Solar Subscription is an ideal solution for businesses looking to cut energy costs without a large upfront investment.
Maintenance and insurance coverage for the entire duration of a tailored subscription plan provides peace of mind, ensuring no unexpected expenses along the way, and you reap the benefits of reduced energy bills.
Your business must be based in England, Scotland or Wales to be eligible.
Our partners, Green Assured, will own the system until the subscription ends.
Although subscriptions last 10 years, you can pay off the full balance and end the contract agreement anytime—without any extra fees or penalties.
If you settle the contract agreement amount early, you’ll only need to pay the remaining balance. Monitoring and maintenance for the solution will be included in the early redemption payment for the remaining term of the agreed contract agreement.
Although subscriptions last 5-10 years, you can pay off the full balance and end the contract anytime—without any extra fees or penalties.
If you settle the total amount early, you’ll only need to pay the remaining credit balance, excluding any future interest or fees for monitoring and maintenance that would have been applied if the subscription had continued.
The amount you pay for partial repayments will be deducted from the outstanding credit, shortening your contract term. However, your fixed monthly payments will stay the same, meaning you’ll pay less interest overall on the reduced balance.
Please note that monitoring and maintenance ends if you end your subscription early.
Start now by sharing your information here for a free consultation and a tailored proposal to be emailed to you.
1. What is a Solar Subscription?
2. How does a Solar Subscription work?
3. Who can benefit from a Solar Subscription?
4. Who owns the system?
5. Who finances the system?
Ready to Install the Joos Box?
For Installers
Contact us to add Joos Box
to your sales portfolio
For Wholesalers
Learn about bulk purchasing
options for your clients