Solar Panels And Battery Storage

Solar Panels & Battery Storage

Bespoke Solar Energy Systems Designed Around Your Home

Reduce your reliance on the grid, store more of the energy you generate and take greater control of your electricity costs with a professionally designed solar PV and battery storage system.

At LET Renewables, we design and install solar panel and battery storage systems for homeowners and businesses across Dorset and the surrounding areas.

Every property is different, so we don’t believe in selling the same package to everyone.

We look at your roof space, electricity usage, future plans, battery requirements and the way you use energy before recommending a system designed around your home.

From the initial design and DNO application through to installation, commissioning and long-term support, our team manages the entire process.

Why Choose Solar Panels?

Solar panels allow your property to generate its own electricity from daylight.

Instead of purchasing all of your electricity from the grid, your home can use the energy being generated by the panels first.

That can help:

• reduce the amount of electricity you buy from the grid;
• protect you against future energy price increases;
• lower your home’s carbon footprint;
• improve your energy independence;
• provide electricity for battery storage;
• help power electric vehicles;
• create the opportunity to receive payment for eligible electricity exported back to the grid.

Modern solar panels can continue generating electricity throughout the year and do not need bright sunshine to operate.

The key is designing the right system for your roof, energy usage and objectives.

How Does a Solar PV System Work?

A solar PV system consists of several important components working together.

1. Solar Panels Generate Electricity

Solar panels installed on your roof convert daylight into DC electricity.

2. The Inverter Converts the Electricity

The inverter converts the electricity produced by the panels into AC electricity that can be used by your home.

3. Your Home Uses the Solar Energy First

When your property is consuming electricity at the same time as your solar panels are generating, the solar energy can be used directly by your appliances.

4. Surplus Energy Can Charge Your Battery

If your solar panels are producing more electricity than your home currently needs, the surplus can be stored in a compatible battery system.

5. Remaining Surplus Can Be Exported

Once your home and battery requirements have been met, eligible surplus electricity can be exported back to the electricity grid.

The whole process happens automatically.

Why Add Battery Storage?

Solar panels and battery storage work extremely well together.

Without a battery, electricity generated by your solar panels needs to be used at the time it is generated or exported to the grid.

A battery allows you to store surplus solar electricity and use it later.

For example, your panels might generate excess electricity during the afternoon while you are out of the house.

Instead of immediately exporting that energy, your battery can store it so it can be used when you return home in the evening.

Battery storage can also provide another major advantage:

Charge Your Battery Using Cheaper Off-Peak Electricity

Many modern battery systems can be programmed to charge from the grid during cheaper off-peak periods.

That means your home can potentially store lower-cost electricity overnight and use it later when electricity from the grid is more expensive.

The best setup depends on your energy tariff, usage and battery capacity, which is why we help customers understand how their system can be configured.

Designed Around You — Not Around a Standard Package

One of the most important parts of installing solar is getting the system design right.

A larger system isn’t automatically better, and a smaller system isn’t automatically cheaper in the long term.

Our team looks at several factors before recommending a system.

These include:

• available roof space;
• roof orientation;
• potential shading;
• annual electricity consumption;
• daytime and evening electricity usage;
• electric vehicle charging;
• heat pumps or future electrical loads;
• battery capacity;
• inverter size;
• available DNO export capacity;
• your current and future energy tariff;
• whether backup power is required.

The aim is to create a system that works around how you actually use electricity.

Why Inverter Size Matters

The inverter is one of the most important components of a solar and battery system.

It controls how much power can move through the system at any one time.

Some solar systems are designed around smaller inverters simply to make the grid-connection process easier.

But that can potentially restrict the amount of power available to your home or battery.

Where appropriate, LET Renewables goes through the required DNO and G99 application process so that larger, correctly sized inverter systems can be considered.

This can allow your solar and battery system to operate more effectively rather than being unnecessarily restricted by an undersized inverter.

The correct inverter size will depend on your property, solar array, battery system and the approval provided by your local electricity network operator.

Solar Panel Options

We install high-quality solar panels selected for their performance, warranty, appearance and suitability for UK homes.

Our preferred product ranges may change as new technology becomes available, which means we aren’t tied to one manufacturer or one panel size.

When recommending a panel, we consider:

• panel efficiency;
• available roof area;
• panel dimensions;
• product warranty;
• performance warranty;
• appearance;
• shading performance;
• manufacturer reputation;
• long-term reliability

Where suitable, we generally favour modern high-efficiency, all-black solar panels that provide a clean finished appearance on the roof.

Your proposal will clearly explain which panels we have recommended and why.

Battery & Inverter Options

There is no single battery system that is perfect for every home.

That’s why LET Renewables works with a selection of established battery and inverter manufacturers.

Depending on your requirements, we can recommend systems offering features such as:

• modular battery expansion;
• high-power hybrid inverters;
• smart energy management;
• off-peak battery charging;
• remote monitoring;
• outdoor installation;
• partial backup power;
• whole-home backup;
• EV charger integration;
• intelligent energy optimisation.

Examples of the systems we work with can include manufacturers such as Sigenergy, Hanchu ESS, Fox ESS, Tesla Power 3 and Ecoflow Power ocean depending on system requirements and product availability.

Sigenergy

Sigenergy offers an integrated solar and battery storage platform with modular battery storage, high-power inverter options, smart energy management and whole-home backup compatibility.

It is particularly well suited to homeowners wanting a highly integrated renewable energy system with the ability to expand battery capacity later.

Other Battery Options

For customers who need a different specification or budget, we can also recommend alternative battery and inverter systems.

Rather than simply selling the most expensive option, we’ll explain the differences and recommend the system we believe best suits your home and requirements.

Whole-Home Backup During a Power Cut

Standard solar panel systems normally switch off during a power cut for safety reasons.

However, some modern battery systems can be combined with additional backup equipment to keep selected circuits — or potentially the entire property — powered during a grid outage.

Depending on the system chosen, backup options can include:

• essential circuit backup;
• partial-home backup;
• whole-home backup.

Whole-home backup requires additional equipment and careful design.

If protection during power cuts is important to you, let us know during the design stage so we can include the correct equipment in your proposal.

What’s Included With an LET Renewables Installation?

We believe customers should understand the whole installation, not just the price of the solar panels and battery.

Depending on your installation requirements, your package can include:

Professional System Design

A system designed around your property, electricity usage and objectives.

DNO Application

Where required, we’ll complete and manage your DNO/G99 application.

Scaffolding

Safe access to the roof where scaffolding is required.

Solar Panel Mounting System

Suitable roof hooks, rails, clamps and mounting equipment for your roof type.

Bird-Proofing

Solar bird-proofing helps prevent birds from nesting underneath the panels.

Inverter & Battery Installation

Your inverter and battery system professionally installed and commissioned.

Remote Monitoring

Your system can be connected to a monitoring app, allowing you to view generation, battery status and household energy flows from your phone.

MCS Certification

Certification for qualifying solar PV installations.

NICEIC & Building Control Certification

Required electrical certification and relevant building control notification.

Insurance-Backed Protection

Applicable installations include long-term consumer protection in addition to our workmanship warranty.

Digital Handover Pack

After your installation, you’ll receive access to important system documentation including:

• certificates;
• product manuals;
• warranties;
• performance estimates;
• safety guidance;
• shutdown and startup procedures;
• maintenance information.

Lifetime Support

Our team remains available after installation to help you understand and get the most from your system.

Our Home Respect Guarantee

Installing solar doesn’t mean your home should be treated like a building site.

Our team takes care to keep your property clean, tidy and respected throughout the installation.

That includes:

• protecting internal work areas where required;
• keeping cable routes as neat as possible;
• cleaning work areas before leaving;
• removing installation waste;
• respecting your home and property.

We take just as much pride in how the installation looks as we do in how the system performs.

What Happens After Installation?

For many solar companies, the job ends when the system is switched on.

At LET Renewables, we believe that’s when the long-term relationship begins.

Post-Installation Review

Once you’ve had time to use your new system, we can help answer questions and make sure you understand how everything operates.

Annual System Health Check

Remote system reviews can help identify performance issues or potential faults.

Lifetime Monitoring & Support

If you need help with your monitoring app, battery settings or system behaviour, our team remains available.

Tariff & Savings Optimisation

Energy tariffs and electricity prices change.

We can help explain how your solar and battery settings may be adjusted to suit different tariff structures.

Solar is a 25–30 year investment. We treat it that way.

What Happens on Installation Day?

Once the relevant approvals are in place and your installation has been scheduled, we’ll coordinate the work with you.

Scaffolding

Where required, scaffolding is normally installed shortly before the solar installation and removed once the roof work has been completed.

Solar Panel Installation

Our roofing team installs the mounting system and solar panels in the agreed locations.

Inverter & Battery Installation

Our electrical team installs your inverter, battery storage and associated equipment.

System Connection

The complete system is wired, tested and commissioned.

Monitoring Setup

We’ll help get your monitoring system connected so you can see how your home, solar panels, battery and grid interact.

Handover

We’ll explain how your new system operates and provide your certification and handover information.

We aim to make the process as straightforward and hands-off as possible for our customers.

Solar Energy Tariffs

Choosing the right electricity tariff can make a significant difference to the way a solar and battery system performs financially.

Depending on your circumstances, you may be able to:

• charge your battery during cheaper off-peak periods;
• reduce the amount of higher-cost daytime electricity you purchase;
• export surplus solar electricity;
• take advantage of EV charging rates;
• adjust battery behaviour around different time-of-use tariffs.

Tariffs change regularly, so rather than displaying fixed electricity prices on this page, we’ll help you understand the options available around the time your system is installed.

We won’t switch your electricity supplier on your behalf, but we’re happy to help point you in the right direction.

Our Accreditations & Customer Protection

Choosing the company installing your renewable energy system is just as important as choosing the equipment.

LET Renewables works with recognised industry certification and consumer-protection schemes, including:

MCS

NICEIC

RECC

IWA Insurance-Backed Protection

Our workmanship is backed by long-term protection, helping give you confidence in both your installation and the company standing behind it.

Real Solar & Battery Installations

We believe the best way to judge the quality of an installation is to see the work for yourself.

Our team has completed solar PV and battery storage installations across Dorset, Hampshire and Wiltshire and the surrounding areas, ranging from straightforward residential solar systems to larger solar, battery, EV charging and backup installations.

Solar Panels & Battery Storage FAQs

Do Solar Panels Work on Cloudy Days?

Yes. Solar panels generate electricity from daylight rather than only direct sunshine.

Generation will normally be lower on darker or heavily overcast days, but the system can continue producing electricity throughout the year.

Do I Need a Battery With Solar Panels?

No.

Solar panels can be installed without battery storage.

However, a battery allows surplus solar electricity to be stored for use later instead of being immediately exported to the grid.

It may also allow you to charge using cheaper off-peak electricity, depending on your system and tariff.

How Many Solar Panels Do I Need?

There isn’t one correct number.

The ideal system size depends on your electricity consumption, roof space, roof orientation, panel output and what you want the system to achieve.

We’ll assess these factors when designing your proposal.

Can I Add More Battery Storage Later?

Many of the battery systems we install can be expanded.

However, expansion options vary between manufacturers, which is something we’ll discuss when recommending equipment.

Will Solar Panels Work During a Power Cut?

A standard grid-connected solar system will normally shut down during a power cut.

If backup power is important, compatible battery systems can be combined with additional backup equipment.

What Is a G99 Application?

A G99 application is used where certain electricity generation or battery inverter systems need approval from the local Distribution Network Operator before being connected.

Where required, LET Renewables manages this process as part of your project.

Can My Battery Charge From the Grid?

Many modern battery storage systems can charge from the electricity grid.

This allows the battery to potentially take advantage of cheaper off-peak electricity tariffs.

Do You Install Bird Protection?

Yes, bird-proofing can be included with our solar installations to help prevent birds from nesting underneath the panels.

Who Handles the Paperwork?

Our team handles the relevant installation documentation, certification and DNO process associated with your system.

We’ll also provide your handover documentation once the installation is complete.

What Areas Do You Cover?

LET Renewables is based in Poole, Dorset and installs solar PV and battery storage systems across Dorset, Hampshire and Wiltshire and surrounding areas.

Ready to See What Solar Could Do for Your Home?

Every home is different.

Before recommending a system, we’ll look at your property, energy usage and what you want to achieve.

We’ll then design a solar and battery solution around your requirements and explain the options clearly so you can make an informed decision.