Simplify Solar & Storage
Installations with
Joos Box

A powerful all-in-one, delivering time savings for installers, high performance and safety for homeowners

Partnered with

Partnered with

Partnered with

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

Reliable, Safe, and Efficient Energy Storage for Every Home

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

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 anytimewithout incurring extra fees or penalties.

If you settle the contract agreement amount early, youll 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. 

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to your sales portfolio

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options for your clients

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