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<h3>The Structural Risks Most Installers Don’t Talk About</h3>Most solar conversations focus on panels, inverters, and savings.But on commercial buildings, warehouses, schools, supermarkets, the single biggest risk isn’t the solar system.It’s the roof underneath it.And this is where many projects go wrong.<h3>The uncomfortable truth</h3>In a large number of commercial solar installations:<ul><li>The system is designed </li><li>The price is agreed </li><li>The installation begins</li></ul>Before anyone has properly verified whether the roof can take the loadWhy is this?Because:<ul><li>Structural checks are often treated as “optional” </li><li>Installers rely on generic mounting certifications </li><li>Responsibility is unclear&nbsp; </li></ul><h3>Why solar changes the structural equation</h3>A commercial solar installation introduces new loads and forces that the building was never originally designed for.1. Additional weightTypical systems add 15–25 kg/m² (sometimes more with ballast).On large roofs, that’s several tonnes of additional load! &nbsp; 2. Wind uplift (the real risk)This is the one most people underestimate.Solar panels act like sails.<ul><li>Wind doesn’t just push down </li><li>It lifts and pulls</li></ul>On exposed sites (very common in Portugal):<ul><li>Uplift forces can exceed system weight </li><li>Ballast systems can shift or fail&nbsp; </li></ul>3. Load distribution issuesSolar systems don’t load roofs evenly.<ul><li>Loads are concentrated at mounting points </li><li>Some areas carry significantly more stress</li></ul>Weak points:<ul><li>Sandwich panels </li><li>Older steel structures </li><li>Roofs with unknown modifications </li></ul><h3>What can go wrong</h3>When structural considerations are ignored or underestimated:Roof damage <ul><li>Deformation </li><li>Water ingress </li><li>Long-term structural fatigue&nbsp; </li></ul>System failure<ul><li>Mounting movement </li><li>Panel detachment </li><li>Wind damage&nbsp;</li></ul>Insurance problemsIf something goes wrong, insurers may reject claims a no structural certification was provided. &nbsp; Legal liabilityResponsibility becomes unclear:<ul><li>Installer? </li><li>Building owner? </li><li>Engineer?</li></ul>This is where disputes happen.&nbsp; <h3>The biggest misconception</h3>Many installers will provide a document saying:“Our mounting system is certified”That sounds reassuring, but it’s not enough because a product certification is NOT a project certification.It tells you that the system works in general but, it does NOT tell you it works on your building. <h3>What should actually happen</h3>A proper commercial solar project should include:1. System design (installer) <ul><li>Layout </li><li>Mounting type </li><li>Ballast assumptions &nbsp; 2. Structural analysis (engineer)</li></ul>A qualified structural engineer must assess:<ul><li>Roof type and condition </li><li>Load-bearing capacity </li><li>Wind exposure </li><li>Load distribution </li></ul>3. Project-specific validationThe engineer should:<ul><li>Confirm the design is safe </li><li>Adjust ballast or fixing if required </li></ul>4. Signed responsibilityA Termo de Responsabilidade should be issued confirming that the roof can safely support the solar installation <h3>Why this matters more in Portugal</h3>Portugal presents a unique combination of risks:<ul><li>Strong coastal winds </li><li>Large industrial roofs </li><li>Widespread use of lightweight roofing systems</li></ul>This makes structural validation essential, not optional.Most companies treat solar as an energy project, but in reality, it is a structural + electrical + financial project.Ignore any one of these, and the system becomes risky.<h3>The Sol Viva approach</h3>Before any installation begins, we ensure:<ul><li>Structural responsibility is clearly defined </li><li>A qualified engineer reviews the system </li><li>The design is validated for the specific building </li><li>Risks are identified and managed upfront</li></ul>Because the best solar systems are not just efficient, they are safe, compliant, and built to last.&nbsp; <h3>Final thought</h3>Solar panels don’t fail often.&nbsp; But when they do on commercial roofs, it’s rarely because of the panels, it’s because of what’s underneath them.If you’re considering a commercial solar installation and want a second opinion on structural risk and system design, we’re happy to help.

Commercial Solar: Before You Install Solar on Your Roof, Read This

a close up of a solar panel with trees in the background

Solar panels are designed to be low-maintenance, but they are not maintenance-free. Over time, dust, pollen, bird droppings, salt residue, traffic film, and other debris can build up on the glass and reduce the amount of sunlight reaching the solar cells. When that happens, the system produces less electricity, and lower production means lower savings.This is not just theory. Soiling is widely recognised as one of the main causes of solar underperformance in the real world. The IEA-PVPS estimates annual energy losses from soiling at around 3% to 5% globally, depending on location and conditions.For homeowners in Portugal, where many systems go through long dry spells, high pollen periods, coastal residue, and occasional dust, panel cleanliness can make a real difference to annual production.<h2>How dirt affects solar panel performance</h2>Solar panels work by allowing sunlight to pass through the front glass and reach the photovoltaic cells underneath. When dirt accumulates on the surface, less light gets through. That lowers energy production.In some cases, the issue is more than just a thin layer of dust. Uneven soiling, such as bird droppings or localised grime, can create imbalance across cells and modules, reducing output more than many people expect. NREL notes that soiling can materially affect production and gives examples of around 5% loss from site-specific contamination such as nearby construction dust.The effect varies by site. In wetter regions, rain may remove part of the dirt. In drier or dirtier conditions, losses can build over time. A Europe-wide study found average annual soiling losses of 0.9% if rainfall is assumed to clean panels perfectly, but as much as 5.3% if rainfall is only partially effective.That tells us something important: rain helps, but it is not always enough.<h2>How cleaning helps performance</h2>Cleaning helps by restoring light transmission through the glass. Put simply, when the dirt is removed, the panel can capture more sunlight again.The value of cleaning depends on how dirty the panels have become and how long they have been left that way. Research shows that once dirt accumulation becomes meaningful, cleaning can recover a noticeable amount of lost output.One study found that panels left uncleaned for three months experienced power losses of up to 13% compared with panels cleaned daily.Another field study found that monthly cleaning increased annual energy generation by 11.15% compared with similar uncleaned panels.A separate study in an urban environment reported a 7.4% decline in PV output after just one week due to deposited particles, and also noted that light rain did not fully solve the issue.These are not promises that every home in Portugal will gain those exact percentages. Every site is different. But they clearly show the principle: when dirt is allowed to build up, production falls, and when that dirt is removed, performance improves.<h2>What this means in Portugal</h2>Portugal is an excellent country for solar, but the same sunshine that makes solar attractive can also create conditions where dirt stays on panels for longer.This is especially relevant for homes: &nbsp; &nbsp; •&nbsp; &nbsp; Near the coast &nbsp; &nbsp; •&nbsp; &nbsp; Close to roads or building works &nbsp; &nbsp; •&nbsp; &nbsp; In areas with pollen-heavy vegetation &nbsp; &nbsp; •&nbsp; &nbsp; With birds regularly sitting above the array &nbsp; &nbsp; •&nbsp; &nbsp; After long dry periods without enough rainIn these situations, cleaning can help keep the system performing closer to its true potential.<h2>When should solar panels be cleaned?</h2>There is no one-size-fits-all answer. Some systems may need very little intervention, while others benefit from periodic cleaning.A good rule is to review cleaning when: &nbsp; &nbsp; •&nbsp; &nbsp; Production appears lower than expected &nbsp; &nbsp; •&nbsp; &nbsp; There has been a long dry spell &nbsp; &nbsp; •&nbsp; &nbsp; Visible dirt or residue is present &nbsp; &nbsp; •&nbsp; &nbsp; There are repeated bird-dropping issues &nbsp; &nbsp; •&nbsp; &nbsp; The home is near a source of dust or pollutionThe key is to make cleaning decisions based on actual site conditions and likely energy recovery, not just appearance. NREL’s guidance on soiling management also supports this more practical, site-specific approach.<h2>The bottom line</h2>Solar panels can lose performance when dirt builds up. In some cases the loss is small, but in others it can become significant. Real-world studies show that cleaning can recover meaningful production, sometimes by several percentage points and sometimes by much more, depending on the site.That is why solar panel cleaning should be seen as part of smart system ownership.Want to know whether your solar system is performing as it should? Visit www.solviva.biz to speak to Sol Viva about solar performance, system reviews, and how to get the most from your installation.

Solar Panel Cleaning in Portugal: How Dirt Reduces Performance and Cleaning Increases Saving

Sim cards and their adaptors are on display.

If you are installing a solar system in Portugal, one detail that often comes as a surprise is the requirement for a production meter and SIM card on larger systems.For solar installations with an installed capacity of more than 4 kW, Portuguese regulations require an additional production meter to be installed. This meter records the total electricity generated by your solar system, not just the energy you export to the grid.<h3>Why is a production meter required?</h3>The production meter allows E-REDES, Portugal’s grid operator, to remotely monitor how much electricity your system is producing.This is important for two main reasons:1. Grid managementE-REDES needs visibility of production data to help manage grid stability and understand how much solar energy is being injected into the network.2. Surplus energy validationIf you export surplus electricity to the grid and are compensated for it, the production meter provides the official data used to validate how much energy your system has produced.<h3>Why is a SIM card needed?</h3>The production meter includes a GSM modem, and that modem requires a SIM card so it can communicate with E-REDES remotely.Without the SIM card, the meter cannot send production data as required.<h3>What type of SIM card is needed?</h3>This is not usually a standard prepaid mobile SIM. The SIM card must typically meet specific technical requirements, including:<ul><li>M2M (Machine-to-Machine) type </li><li>PIN code disabled </li><li>At least 250 MB of data </li><li>Support for CSD (Circuit Switched Data) and OTA (Over-the-Air) commands</li></ul>Your mobile operator, such as MEO, Vodafone, or NOS, should be able to advise on a suitable option.<h3>Who is responsible for the SIM card?</h3>Unlike your home’s normal electricity meter, which belongs to E-REDES, the production meter, modem, and SIM card are the responsibility of the solar system owner.That means the owner is responsible for:<ul><li>obtaining the SIM card </li><li>paying for the data plan </li><li>keeping the SIM active over time</li></ul>In most cases, the simplest solution is to add the SIM to your existing monthly mobile contract, rather than using a separate prepaid SIM. This is often easier to manage and reduces the risk of the connection being interrupted.<h3>Why it is best to arrange this before installation</h3>Ideally, the SIM card should be ready before installation day so the installation team can fit it into the meter, configure it, and test everything properly.If the SIM is not available in time, it can still be installed afterwards, but this usually means the homeowner will need to follow additional setup instructions later. For that reason, it is much better to have it ready in advance.<h3>Final thoughts</h3>This requirement can feel like a small technical detail, but it is an important part of making sure a larger solar installation in Portugal is properly connected and compliant.At Sol Viva, we help homeowners understand each step of the process clearly, so there are no surprises before installation day.If you are planning a solar installation in Portugal and want expert guidance, visit www.solviva.biz.

Why solar systems above 4 kW in Portugal need a production meter and SIM card

If you’ve recently installed solar, one of the first things you’ll notice is the app.It looks impressive, graphs, flows, numbers, but for most homeowners, it’s not immediately obvious what it all means.This guide will walk you through the essentials so you can quickly understand:<ul><li>What your system is doing </li><li>Whether it’s performing properly</li><li>How to get the most value from your solar investment</li></ul><h3>Why Your Solar App Matters</h3>Your solar app isn’t just “nice to have” — it’s your window into how your home uses energy.Most modern systems (whether Huawei or Fronius) allow you to:<ul><li>Monitor production and consumption in real time</li><li>Track savings and grid usage </li><li>Adjust battery behaviour (if installed) </li><li>Identify issues early</li></ul>In fact, these apps are designed to give homeowners full visibility and control from anywhere.&nbsp;&nbsp;<h3>The Home Screen: Your System at a Glance</h3><figure id="figure-rm6sg9zhflmn7ii1lu"><img id="rm6sg9zhflmn7ii1lu" src="https://cdn.durable.co/blocks/1c48HnUxG4LAOST0jQ5LW0lfpcVMncNo0Dr7wyXTIhGkFRtjv86KcjSL6BmmRM01.png" alt="" title="" class="object-cover bg-gray-100 rounded-sm md:rounded-md lg:rounded-lg" style="aspect-ratio: 16/9; object-position: center center;" data-corners="default" data-aspect="16:9" data-caption="" data-positionx="null" data-positiony="null" data-fullwidth="false" data-mce-src="https://cdn.durable.co/blocks/1c48HnUxG4LAOST0jQ5LW0lfpcVMncNo0Dr7wyXTIhGkFRtjv86KcjSL6BmmRM01.png" data-mce-style="aspect-ratio: 16/9; object-position: center center;"></figure>When you open your app, you’ll usually see a live energy flow diagram.This shows how electricity is moving between:<ul><li>Solar panels</li><li>Your home</li><li>The battery (if you have one)</li><li>The grid</li></ul>What to look for: <ul><li>Solar → Home = you’re using your own energy (ideal) </li><li>Solar → Battery = storing energy for later </li><li>Solar → Grid = exporting excess </li><li>Grid → Home = importing electricity (costing you money)</li></ul>Your goal: maximise solar usage in your home before exporting or importing.<h3>Key Numbers You Should Understand</h3>Most apps show similar core metrics:1. Production (kWh)How much energy your panels generate.2. Consumption (kWh)How much energy your home uses.3. Self-Consumption (%)The percentage of solar energy you use directly.Higher = better savings4. Grid Import / Export <ul><li>Import = energy you buy </li><li>Export = energy you sell (or give away cheaply)</li></ul>5. Battery State of Charge (SOC)How full your battery is (if installed)These metrics are standard across solar platforms and help you understand performance and savings &nbsp;<h3>Understanding Your Battery (If You Have One)</h3><figure id="figure-yxop6br22mn7isoj3" class=""><img id="yxop6br22mn7isoj3" src="https://cdn.durable.co/blocks/2chg8hhrThWmm24AwsPXATpqxh7dDTDWX4C16zTctqh97hbIP3d7HO6GwsPE2eil.png" alt="" title="" class="object-cover bg-gray-100 rounded-sm md:rounded-md lg:rounded-lg" style="aspect-ratio: 16/9; object-position: center center;" data-corners="default" data-aspect="16:9" data-caption="" data-positionx="undefined" data-positiony="undefined" data-fullwidth="false" data-mce-src="https://cdn.durable.co/blocks/2chg8hhrThWmm24AwsPXATpqxh7dDTDWX4C16zTctqh97hbIP3d7HO6GwsPE2eil.png" data-mce-style="aspect-ratio: 16/9; object-position: center center;"></figure>Your battery typically follows a simple pattern:<ul><li>Daytime: charges from solar </li><li>Evening: powers your home </li><li>Night: may partially discharge depending on settings</li></ul>Important settings: <ul><li>Minimum reserve (%) → protects battery life </li><li>Mode (self-use / backup / export) → defines behaviour</li></ul>For example:<ul><li>Self-use mode = maximise savings </li><li>Backup mode = keep energy for outages </li></ul><h3>The Most Common Mistakes (and How to Avoid Them)</h3>Based on real user feedback, many homeowners feel overwhelmed or unsure how to interpret the app &nbsp;Here are the big ones to avoid:1. Checking Too OftenSolar works best over days and weeks, not minutes.2. Misreading Grid UsageSeeing grid import occasionally is normal, especially at night or during high demand.3. Ignoring Self-ConsumptionThis is the most important metric, not total production.4. Not Using the DataYour app should guide behaviour:<ul><li>Run appliances during the day </li><li>Charge EVs when solar is high</li><li>Avoid peak grid usage</li></ul><h3>What “Good Performance” Looks Like</h3>As a simple benchmark:<ul><li>Spring/Summer: high production, high self-consumption </li><li>Winter: lower production, more grid use </li><li>Battery systems: reduced evening imports</li></ul>If your system is:<ul><li>Producing energy daily </li><li>Charging/discharging correctly </li><li>Showing logical energy flows</li></ul>Then it’s likely working exactly as it should.<h3>When to Contact Sol Viva</h3>You don’t need to worry about every number — that’s our job.But get in touch if you notice:<ul><li>No production during sunny days </li><li>Battery not charging or discharging </li><li>Constant high grid import </li><li>App showing errors or offline system</li></ul><h3>Final Thoughts</h3>Your solar app might seem technical at first, but once you understand the basics, it becomes incredibly powerful.It allows you to:<ul><li>Take control of your energy </li><li>Reduce your bills </li><li>Make smarter decisions about how and when you use electricity</li></ul>And most importantly, it gives you confidence that your system is doing exactly what it should.<h3>Need Help Understanding Your System?</h3>At Sol Viva, we help homeowners in Portugal get the most out of their solar systems, not just install them.

How to Use Your Huawei or Fronius Solar App: A Simple Homeowner’s Guide

Most people install solar to save money.But one of the most valuable, and least understood, benefits is this:It increases how much power your home can use at any moment, without upgrading your grid connection. <h3>Your Home Has a Hidden Limit</h3>Every home in Portugal has a contracted power limit:<ul><li>3.45 kVA </li><li>4.6 kVA </li><li>6.9 kVA </li><li>10.35 kVA</li><li>20.7kVa</li></ul>This is the maximum power you can draw from the grid at any one time.If you exceed it, your system trips.<h3>Why Power Trips Are Becoming More Common</h3>Modern homes are using more electricity than ever:<ul><li>EV chargers </li><li>Heat pumps </li><li>Induction hobs </li><li>Ovens, dishwashers, dryers</li></ul>These loads often run at the same time — and quickly exceed your limit<h3>Solar Adds “Extra Capacity” During the Day</h3>Here’s where solar becomes powerful in a way most people don’t expect:Solar reduces how much power you need from the grid.Example: <ul><li>Grid limit: 6.9 kW </li><li>Home demand: 9 kW</li></ul>Without solar:Grid must supply 9 kW → system tripsWith solar producing 3 kW:<ul><li>Grid supplies: 6 kW</li><li>Solar supplies: 3 kW</li></ul>Total demand met → no tripKey Insight:Solar effectively gives your home extra usable power during the day <h3>Battery Extends That Power to Any Time</h3>Solar only works when the sun is shining.A battery allows you to:Use stored energy to support your home when demand spikesExample (evening peak): <ul><li>Grid limit: 6.9 kW </li><li>Demand: 9 kW</li></ul>With battery:<ul><li>Grid: 6.9 kW</li><li>Battery: 2.1 kW</li></ul>No trip, even without solar<h3>The Missing Piece: Peak Shaving&nbsp;</h3>Here’s what most installers don’t explain: Your inverter can be configured to actively manage your power usage.&nbsp; This is called Peak Shaving &nbsp; What is Peak Shaving?You set a rule:“Never draw more than 6.9 kW from the grid”<ul><li>The system then:</li><li>Monitors your demand in real time </li></ul>Automatically uses solar and battery to stay below the limit &nbsp; Example: <ul><li>Grid limit: 6.9 kW </li><li>Demand spikes to: 9 kW</li></ul>With peak shaving enabled:<ul><li>Grid stays capped at 6.9 kW</li><li>Battery instantly supplies 2.1 kW</li></ul>Your system never tripsWhy this mattersWithout peak shaving:<ul><li>Your system may still trip during sudden spikes</li></ul>With peak shaving:<ul><li>Your home becomes self-regulating </li><li>Power flow is controlled automatically, in real time&nbsp;</li></ul><h3>Solar + Battery + Peak Shaving = Full Control</h3>When all three work together:<table style="border-collapse: collapse; width: 100%;" border="1" data-mce-style="border-collapse: collapse; width: 100%;"><tbody><tr><td style="width: 50%;" data-mce-style="width: 50%;">Situation</td><td style="width: 50%;" data-mce-style="width: 50%;">What happens</td></tr><tr><td style="width: 50%;" data-mce-style="width: 50%;">Daytime</td><td style="width: 50%;" data-mce-style="width: 50%;">Solar adds extra capacity</td></tr><tr><td style="width: 50%;" data-mce-style="width: 50%;">Evening/night</td><td style="width: 50%;" data-mce-style="width: 50%;">Battery supports demand</td></tr><tr><td style="width: 50%;" data-mce-style="width: 50%;">Sudden spikes</td><td style="width: 50%;" data-mce-style="width: 50%;">Peak shaving prevents overload</td></tr></tbody></table><h3>Real-Life Scenario</h3>You’re:<ul><li>Cooking dinner </li><li>Running dishwasher </li><li>Charging your EV</li></ul>Without smart control:<ul><li>High risk of tripping</li></ul>With full system:<ul><li>Solar reduces grid load</li><li>Battery fills the gap</li><li>Peak shaving controls everything</li></ul>Your home runs smoothly<h3>Avoid Expensive Grid Upgrades</h3>Many homeowners think:“I need to increase my power from 6.9 to 10.35 kVA”But that means:<ul><li>Higher fixed monthly costs </li><li>Possible electrical upgrades</li></ul>With the right system, you often don’t need to upgrade at all.<h3>What Most Installers Get Wrong</h3>They focus on:“How many panels can we install?”But the real question is:How does your home behave under peak load?<h3>Final Takeaway </h3><ul><li>Solar gives you extra power during the day </li><li>Battery extends that power to any time</li><li>Peak shaving ensures you never exceed your limit</li></ul>Together, they turn your home into a smart, controlled energy system.<h3>Want a Smarter Solar Setup?</h3>Sol Viva helps homeowners across Portugal:<ul><li>Analyse real power usage (not just energy) </li><li>Design systems that prevent power trips </li><li>Combine solar, battery, and intelligent control </li><li>Future-proof your home</li></ul><a data-mce-href="https://docs.google.com/forms/d/1maLEa6A5pO71WotYbCBFOzhHMuZ28Pv6NF4i405a4X8/edit" href="https://docs.google.com/forms/d/1maLEa6A5pO71WotYbCBFOzhHMuZ28Pv6NF4i405a4X8/edit">Get started</a> with your solar journey.

Understanding Home Power Limits and How Solar + Battery Prevents Power Trips

If your home has a DEYE inverter, your solar system comes with a powerful app - usually called SOLARMAN Smart.At first glance, it can feel a bit technical.But once you understand a few key screens, it becomes one of the most useful tools you have to:<ul><li>Track your savings </li><li>Understand your energy usage</li><li>Make smarter decisions about when to use electricity</li></ul>This guide will walk you through everything you actually need to know — without the complexity.<h3>What Is the DEYE App (SOLARMAN Smart)?</h3><figure id="figure-itm0bq3jewmn7hcjy9"><img id="itm0bq3jewmn7hcjy9" src="https://cdn.durable.co/covers/baMPJYhpwnsynxTq7eLFIYyZiS7kjT3Sm8GN0GjKoQMV9nyrB32uRgtoncKpRXK0.png" alt="" title="" class="object-cover bg-gray-100 rounded-sm md:rounded-md lg:rounded-lg" style="aspect-ratio: 3/2; object-position: undefined undefined;" data-corners="default" data-aspect="3:2" data-caption="" data-positionX="undefined" data-positionY="undefined" data-fullWidth="false"/></figure>Most DEYE systems in Portugal use the SOLARMAN Smart app.It connects directly to your inverter and shows:<ul><li>Real-time solar production </li><li>Household consumption </li><li>Battery activity (if installed) </li><li>Grid import and export</li></ul>Think of it as your energy dashboard for your home.<h3>The Main Screen: Understanding Energy Flow</h3>When you open the app, you’ll see a live energy flow diagram.This is the most important screen.It shows how electricity is moving between:<ul><li>Solar panels </li><li>Your home </li><li>The battery </li><li>The grid</li></ul>How to read it: <ul><li>Solar → Home = you’re using free solar energy&nbsp; </li><li>Solar → Battery = storing energy for later&nbsp; </li><li>Solar → Grid = excess energy exported </li><li>Grid → Home = you’re buying electricity</li></ul>Your goal is simple:Use as much of your own solar energy as possible.<h3>The Key Numbers (What Actually Matters)</h3>Inside the app, you’ll see several metrics. Focus on these:1. PV Production (kWh)How much energy your panels are generating.2. Load / Consumption (kWh)How much your home is using.3. Grid Import / Export <ul><li>Import = buying electricity </li><li>Export = sending energy back</li></ul>4. Battery Level (%)How full your battery is.5. Self-ConsumptionNot always shown directly, but critical:The more solar you use yourself, the more you save.<h3>Understanding Your Battery Behaviour</h3><figure id="figure-jsglbxgiokmn7h5a3f" class=""><img id="jsglbxgiokmn7h5a3f" src="https://cdn.durable.co/blocks/23W7cjjErwCByPrOGH0YsAVDF1k8vKPooDa23af5F4EIYIZ3IDP6LN7LahdckIVT.jpg" alt="" title="" class="object-cover bg-gray-100 rounded-sm md:rounded-md lg:rounded-lg" style="aspect-ratio: 16/9; object-position: center center;" data-corners="default" data-aspect="16:9" data-caption="" data-positionx="undefined" data-positiony="undefined" data-fullwidth="false" data-mce-src="https://cdn.durable.co/blocks/23W7cjjErwCByPrOGH0YsAVDF1k8vKPooDa23af5F4EIYIZ3IDP6LN7LahdckIVT.jpg" data-mce-style="aspect-ratio: 16/9; object-position: center center;"></figure>If you have a battery, your system typically works like this:<ul><li>Morning → Afternoon: battery charges from solar </li><li>Evening: battery powers your home </li><li>Night: battery may partially discharge</li></ul>Important settings (usually installer-controlled): <ul><li>Minimum battery reserve (%) </li><li>Charge/discharge priorities </li><li>Time-of-use settings (in some cases)</li></ul>If these aren’t set correctly, your savings can drop — so it’s worth checking.<h3>Daily vs Monthly Views&nbsp;</h3>The app allows you to view:<ul><li>Daily performance </li><li>Monthly totals </li><li>Historical data</li></ul>What matters most: <ul><li>Daily: good for spotting obvious issues </li><li>Monthly: best for understanding savings</li></ul>Don’t worry if numbers fluctuate day to day — solar depends on weather.<h3>Common Mistakes to Avoid</h3>Here’s what we see most often with DEYE users:1. Watching the App Too CloselySolar performance changes constantly — zoom out and look at trends.2. Confusing Export with SavingsExporting energy is usually less valuable than using it yourself.3. Ignoring Timing of UsageRunning appliances at night = more grid usageRunning them during the day = more savings4. Battery MisconfigurationIncorrect settings can lead to:<ul><li>Battery not discharging properly</li><li>Unnecessary grid usage&nbsp;</li></ul><h3>How to Get More Value from Your System</h3>Once you understand the app, you can actively improve your savings:Shift usage to daytime: <ul><li>Washing machine </li><li>Dishwasher </li><li>Pool pumps </li><li>EV charging</li></ul>Use your battery effectively: <ul><li>Let it charge fully during the day </li><li>Use it in the evening when electricity is expensive</li></ul>Monitor trends (not moments): Weekly and monthly patterns matter most <h3>What “Normal” Looks Like</h3>A well-functioning DEYE system should:<ul><li>Produce energy every sunny day </li><li>Show clear energy flows </li><li>Charge and discharge the battery daily </li><li>Reduce your grid usage significantly</li></ul>If this is happening, your system is working properly.<h3>When to Contact Sol Viva</h3>Get support if you notice:<ul><li>No production on sunny days </li><li>Battery stuck or not charging </li><li>Constant grid usage despite sunshine </li><li>App offline or not updating&nbsp; </li></ul><h3>Final Thoughts</h3>Your DEYE app might feel technical at first, but it’s actually a powerful tool.Once you understand it, you can:<ul><li>Take control of your energy </li><li>Increase your savings </li><li>Feel confident your system is working properly</li></ul>And that’s exactly what solar should give you, control and clarity.Here's a useful video that gives you a general flyby of the SOLARMAN App.<figure id="figure-7lpygosc9ymn7hxn08" class=""><iframe id="7lpygosc9ymn7hxn08" src="https://www.youtube.com/embed/H_bceB_PY8o" class="w-full bg-gray-100 rounded-sm md:rounded-md lg:rounded-lg" style="aspect-ratio: 16/9;" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen="" data-url="https://www.youtube.com/watch?v=H_bceB_PY8o" data-corners="default" data-fullwidth="false" data-mce-src="https://www.youtube.com/embed/H_bceB_PY8o" data-mce-style="aspect-ratio: 16/9;"></iframe></figure><h3>Need Help Getting the Most from Your Solar?</h3>At Sol Viva, we don’t just install systems, we help you get the maximum return from them.

How to Use Your DEYE Solar App: A Simple Homeowner’s Guide

Sol Viva

Sol Viva helps international homeowners in Portugal  install solar panels with confidence, clarity, and zero hassle.

We specialise in guiding international homeowners through the entire solar journey—from energy analysis and system design to installation, registration, rebates, and long-term management. 
With 260–300 days of sunshine each year, Portugal and Spain are among Europe’s most profitable regions for residential solar power. Yet for international homeowners, navigating local installers, regulations, and language barriers can be overwhelming.

Sol Viva acts as your trusted solar partner, providing independent advice, expert project management, and access to vetted, reliable installers. We handle everything end-to-end so you get a high-performance solar system, the best price, and peace of mind. Whether you want to reduce electricity bills, increase energy independence, add battery storage, or maximise the ROI of your property, Sol Viva makes going solar in Portugal simple, transparent, and stress-free.

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How to Use Your DEYE Solar App: A Simple Homeowner’s Guide