PC Slower Than It Used to Be?
Outbyte PC Repair · freeA free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.
Run a Free PC Scan →ThatPainter is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn More
Australian sunlight is both an opportunity and a design risk. It can generate low-emission electricity, provide hot water and useful winter warmth, and supply daylight. The same radiation can overheat rooms, create glare and expose people to ultraviolet (UV) radiation. Sustainability therefore depends less on maximising sun than on controlling which part of the resource reaches which surface, at what time of year.
Australia’s solar resource varies by latitude, season, cloud, moisture, orientation and local shade. A sound project combines site-specific solar information with photovoltaic (PV) or solar-thermal technology, passive design, adjustable shading and UV protection. The national figures are impressive, but they do not guarantee a particular building’s comfort, energy savings or financial return.
As an Amazon Associate I earn from qualifying purchases.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Start with the three kinds of solar radiation
“Sunlight” is not one design variable. Visible light is what supports daylight and causes glare. Infrared radiation is the part people mainly experience as heat. Ultraviolet radiation is invisible and can damage skin and eyes. A cool day can still have substantial UV, while a bright room is not necessarily a hot one.
| Radiation | Why it matters in a building | Appropriate response |
|---|---|---|
| Visible light | Reduces electric-light demand but can cause glare on screens and reflective surfaces. | Control window size, orientation, blinds, louvres, screens and interior finishes. |
| Infrared (heat) | Can provide useful winter warmth or unwanted summer heat gain. | Use orientation, glazing decisions, thermal mass, ventilation and seasonal shading. |
| Ultraviolet (UV) | Creates a health risk that is not reliably indicated by temperature or brightness. | Check the UV Index and combine shade, clothing, sunscreen, hats and compliant sunglasses. |
Keeping these effects separate prevents a common mistake: treating a cooler, shaded or cloudy day as proof that UV is low, or treating a bright window as proof that a room will overheat.
#1 Best Overall
- [Wide Application]: Daily Output 800wh/day under 4 hours full sunshine condition. Perfect for RV, Caravan, Marine, Camper, Electric scooter, Golf Carts, Power wheels, Trolling motor, Tool trailer, Backup power supply for cabin shed home etc.
- [Excellent Performance]: ECO-WORTHY solar panels use high-performance monocrystalline solar cells, which can provide up to 21.5% higher efficiency sufficient light conditions.size：35.2*23.1.37in
- [Durable]: Corrosion-resistant aluminum alloy frame, so that the panel can be used for decades, and can withstand strong wind (2400Pa) and snow load (5400Pa), with a long service life. Ip65 rated junction box provides complete protection.：
- [Complete and Easy]: The back of the pre-drilled and plug-and-play cables allow quick installation, the kit can be connected in series (24V) or parallel (12V) if you need. What you will get: 2 pcs 100W mono solar panel + 2 set of Z mounting brackets + 30A solar controller + 1 pair of 16.4ft 10 awg solar cables + 1 pair of 2-in-1 connectors + 1 pair of 4.92ft tray cable.
- [Support]: 1 year with 24/7 tech support, if any problems or questions about the product,please do not hesitate to let us know through Amazon or call ECO-WORHTY hotline for solution.
How much sun does Australia receive?
The Bureau of Meteorology’s national average daily solar-exposure maps use the 1990–2019 climatology. “Global solar exposure” means the total solar energy falling on a horizontal surface. The typical value across Australia is about 1 to 35 MJ/m² per day, a broad range rather than a promise for a particular roof or façade. See the Bureau of Meteorology’s average daily solar exposure maps.
Central and northern parts of the country generally have higher annual exposure. Southern coastal areas generally have lower exposure. Season, latitude, cloud and atmospheric moisture change the result, and a local obstruction can make a major difference to an individual building. A map value for a horizontal surface cannot be copied directly into a tilted roof, vertical window or shaded courtyard calculation.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →The Bureau explains that its solar-exposure information is derived from satellite observations and can support applications including architecture and power generation. The method and intended uses are described in Solar Exposure Information. For design, use the maps as regional context, then obtain a site-specific assessment that accounts for roof pitch, orientation, neighbouring buildings, trees and seasonal shadows.
Rank #2
- 【Efficient Performance】This Starter Kit can generate an average of 500Wh of electricity per day (varies with sunlight). The solar panel boasts a 22.5% cell efficiency, 1.3% higher than other counterparts. Each panel dispatched from our facility undergoes 100% EL testing, ensuring that your panel is completely free from any hidden cracks.
- 【Market-Leading Service Plan】Enjoy worry-free usage with our market-leading service plan, providing 10 years of coverage for solar panel material and workmanship, along with a 2-year plan for the charge controller. Additionally, benefit from a 25-year service plan for the power output of the panel.
- 【Exceptional Safety】Certified by UL 61730, CSA C22.2#61730, IEC 61730/IEC 61215, our solar panel withstands 2400Pa wind and 5400Pa snow loads. Featuring IP65-rated J-box and IP67-rated solar connectors, rest assured, it can tackle any weather challenge.
- 【Remote Monitoring】The Wanderer PWM Charge Controller features an RS232 Bluetooth port. By adding a Renogy BT-1 Bluetooth Module, you can remotely monitor your solar system on the Renogy DC Home app. Keep track of voltage and current at any time, and receive timely warnings for over-voltage, under-voltage, and over-discharge.
- 【Excellent Compatibility】The solar kit with the Wanderer 30A PWM Charge Controller, supports expansion up to 400W with additional solar panels and is compatible with AGM, Gel, Flooded, and Lithium batteries.
Where the energy opportunity lies
Photovoltaic electricity
PV modules convert sunlight directly into electricity. They can be installed on rooftops or incorporated into a building’s roof, walls and, in some applications, windows. The Australian Renewable Energy Agency (ARENA) describes these rooftop and building-integrated options in its overview of renewables in buildings.
PV output follows available sunlight, so system design must consider orientation, tilt, shading, inverter capacity and when the building uses electricity. A national solar-exposure range does not establish a household’s bill reduction, a system’s payback period or a guaranteed annual output. Those outcomes require the site, system specification, electricity tariff and operating assumptions.
Solar thermal heat
Solar-thermal systems capture sunlight’s heat for hot water or space heating. Concentrating systems can also produce electricity, and thermal storage can retain captured heat for later release. These systems solve a different problem from PV: they supply useful heat directly rather than first making electricity. ARENA’s solar energy explanation sets out the distinction between PV and solar thermal.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Rank #3
- Max Battery Voltage: 32V
What the national electricity figure actually says
In 2025, renewable sources supplied 39.6% of Australia’s total electricity generation, and solar supplied 19.7% of total generation, according to the Department of Climate Change, Energy, the Environment and Water’s 2026 renewables statistics. These are shares of electricity generated during 2025. They are not the percentage of incoming sunlight converted by panels, a household’s saving, or a forecast for future years.
Why sunlight can undermine a building’s sustainability
Large areas of glazing and an exposed sunny orientation can deliver daylight and winter warmth, yet uncontrolled summer solar gain can increase cooling demand. Glare can make occupants close blinds and switch on lights, cancelling some of the daylight benefit. A design that performs well in one season can be uncomfortable in another.
The useful question is therefore not “How do I get more sun?” but “Where, when and in what form is sun useful?” A living room may benefit from low winter sun; a bedroom may need darkness and low morning heat; a work area may need diffuse daylight without reflections on a monitor. Roof-mounted PV may use an otherwise exposed surface without adding window heat, while a west-facing window needs a different control strategy.
Rank #4
- 【High Conversion Rate】This 20W solar panel with monocrystalline A+ solar cell has an excellent cell efficiency of 21%-30%. Designed to charge and maintain 12V rechargeable batteries like LiFePO₄, Lithium Ion, AGM, SLA, GEL, EFB, MF, etc. Keep batteries in charged for trailer, tractor, truck, boat, motorcycle, RV, car, lawn mower, water pump, gate opener, electric fence, etc
- 【Built to Last】 Low-iron tempered glass surface and corrosion-resistant aluminum frame, make this solar panel 100% waterproof and rustproof, and provide the prolonged lifespan up to 25 years. This 12V solar panel can withstand all weather conditions such as sandstorm, strong wind, thunderstorm, blizzard, hail, etc. It can withstand up to 2400Pa wind pressure and 5400Pa snow load
- 【Smart MPPT Controller】The charging efficiency of this upgraded 10A controller is 30% higher than other controllers on the market. Its intelligent three-stage charging design effectively prevents the battery from overcharging, over-voltage and short circuit. It takes no power from the battery. You will clearly know the charging status of the battery through the two indicator lights on the controller
- 【360° Adjustable Bracket & Plug-and-Play Installation】Comes with a fully 360° angle adjustable mounting bracket, which allows you to adjust the solar panel to the optimal sun-facing angle for maximum solar energy absorption and higher charging efficiency. Pre-drilled mounting holes and matched screws greatly simplify the installation process, no complicated tools or professional skills are required. All cable connections support plug-and-play, enabling quick and effortless installation and disassembly for both indoor and outdoor scenarios.
- 【Complete Accessories & Reliable After-Sales Service】Our SOLPERK Solar Panel kit includes 1*20W solar panel, 1*smart MPPT charge controller, 1*adjustable mounting bracket, 1*alligator clip, 1*O-ring and a full set of mounting accessories to meet your diverse installation and use needs. We offer 1-year professional after-sales service and lifetime technical support, with 7×24-hour online customer service to respond to your questions and solve problems within 24 hours, bringing you a worry-free shopping and using experience.
A planning instrument in the State Environmental Planning Policy (Housing) 2021, as made on 20 March 2024, describes passive-solar objectives in its own planning context: optimise winter heat storage and reduce summer heat transfer. It lists thermal mass in floors and walls, overhangs, eaves, awnings, pergolas, balconies, blinds, screens and external louvres as relevant measures, and specifically calls for operable screens on western windows to prevent summer sun ingress. Those provisions should not be presented as a universal rule for every Australian project; their legal application depends on the planning context.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsKey design controls
- Orientation and exposure: map seasonal sun paths and nearby obstructions before fixing window or panel locations.
- Glazing: size and specify windows for each room’s daylight, view, heat and glare requirements rather than maximising glass area.
- Thermal mass: place suitable mass where it can absorb useful winter heat and release it when conditions are comfortable; protect it from unwanted summer gains.
- External shading: eaves, awnings, balconies, pergolas and external louvres intercept radiation before it reaches the glass. Exterior window shade screens can be useful where an operable, site-appropriate solution is needed.
- Internal and operable controls: blinds and screens let occupants respond to changing weather, glare and room use.
- Ventilation: planned airflow can remove accumulated heat, but opening windows is not a substitute for shading during a hot, sunny period.
A practical process for using sunlight without overheating
- Define the desired service. Decide whether the priority is electricity, hot water, winter warmth, daylight, views or a combination. A PV array, solar-thermal collector and window are not interchangeable solutions.
- Establish the site climate. Use the Bureau’s 1990–2019 solar-exposure maps for regional context, then record latitude, seasonal sun angles, cloud patterns, roof geometry and nearby shade. Treat the map’s horizontal-surface value as an indicator, not a roof-output guarantee.
- Assign sunlight to rooms and surfaces. Put daylight and winter-warmth goals where they improve comfort. Keep heat-sensitive rooms and equipment away from unavoidable summer exposure, or provide a controllable barrier.
- Model the envelope. Test glazing area, glass performance, insulation, thermal mass, air movement and shading together. A shading device that is permanently down may prevent glare but also remove the daylight benefit; an operable device can support seasonal control.
- Choose the energy technology. Compare rooftop or building-integrated PV with solar thermal according to the energy form needed. Check structural capacity, maintenance access, electrical or plumbing integration, fire and planning requirements, and the building’s demand profile.
- Verify comfort and health. Check glare at occupied workstations, surface temperatures, summer peak conditions and winter daylight. Plan outdoor areas around the UV Index, not around temperature alone, and provide shade that works with personal SunSmart measures.
This sequence avoids designing the panels, windows or shading in isolation. It also makes clear which results must come from project modelling rather than national averages.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Comparing the main ways to use Australian sunlight
| Approach | Energy form | Best opportunity | Main control or risk |
|---|---|---|---|
| Rooftop PV | Electricity | Uses an exposed roof to generate power without increasing window solar gain. | Output varies with shading, orientation, season and electricity demand; site-specific modelling is required. |
| Building-integrated PV | Electricity | Integrates generation into roofs, walls or some windows where conventional roof area is limited. | Must be coordinated with façade performance, glare, access, weatherproofing and replacement strategy. |
| Solar thermal | Hot water or space heat; concentrated systems can generate electricity | Directly supplies a heat load and may use thermal storage for later use. | Collector placement, storage, controls and the building’s hot-water or heating demand determine usefulness. |
| Passive solar design | Daylight and building heat | Reduces purchased lighting or heating when orientation, glazing and thermal mass are appropriate. | Uncontrolled summer gain and glare can increase cooling, discomfort and blind use. |
| External and operable shading | Demand reduction and comfort control | Blocks radiation before it reaches glazing while allowing seasonal adjustment. | Needs correct placement, operation, durability and maintenance; no single product suits every façade. |
The strongest design may combine several rows: for example, carefully shaded glazing for daylight, thermal mass for moderated winter warmth and rooftop PV for electricity. The sources do not establish a universal best orientation, shading product, price, payback period or bill saving.
Best Value
- Portable Generator with 60W Solar Panel Included: with a big battery pack, ZeroKor 300W solar powered generator are powerful enough to charge smartphones,tablets,laptops,headphones or other outdoor small camping supplies(Tips:Using electrical appliances over 300W may damage the portable solar generator, especially some devices that are prone to heat or built-in air compressor such as coffee maker,Hair dryer, water pump etc )
- Multiple Charging outlets for camping gear with SOS Flashlight: with 2* 300W Max wall AC outlets, 1* DC port (9V-12.6V/10A max ), 3* 5V/3A Max USB ports, 1*quick charge USB port (5V/3A 9V/2A Max), Flashlight with reading mode and SOS mode for your outdoor Adventures, our portable solar power station offers a versatile charging solution,allowing you to charge your outdoor smart devices directly from a wall AC outlet
- Multiple Charging Optional, Solar Panel Charger 60W Included: ZeroKor portable power bank generator can be recharged by Home AC outlet, DC5521 13V-23V Solar Panel (Portable Power Station built-in MPPT), 12V Carport. Take the portable solar power bank generator with you on-the-go and never worry about power shortage,the portable AC outlet design makes it more suitable for Tent camping OFF-Grid
- Built in BMS(Battery Management System) : ZeroKor portable power station features short circuit protection, over-current protection, over-voltage protection, overload protection and overheating protection. The built-in cooling fan system will automatically start and stop according to the portable battery pack internal temperature during use. Acting as a portable solar power bank, it accommodates multiple devices simultaneously, making it perfect for indoor and outdoor use
- HIGH CONVERSION EFFICIENCY: ZeroKor solar panels 60W monocrystalline solar cell have a high conversion efficiency of 20.5%, and its performance is better than that of polycrystalline solar panels under the condition of insufficient light
UV protection is a separate sustainability and health question
Cancer Council Australia explains that UV is invisible and differs from both visible light and infrared heat. UV can be high on cool or overcast days, so occupants should use the UV Index rather than temperature or perceived brightness as the trigger for protection.
When the UV Index reaches 3 or above, the guidance is to combine measures: protective clothing, broad-spectrum water-resistant SPF 50 or higher sunscreen, a broad-brimmed hat, shade and sunglasses that meet Australian standards. Architectural shade lowers exposure in the shaded area but does not make every outdoor position UV-free; reflected and scattered radiation, changing sun angles and gaps around the structure still matter.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsDesigners should therefore specify shade for thermal and glare control while communicating ordinary SunSmart behaviour to occupants. A covered terrace, louvred façade or screen can improve comfort, but it should not be described as a complete substitute for personal protection.
Common mistakes and how to correct them
- Using one national number as a system forecast: the 1–35 MJ/m²/day range describes typical daily global exposure on a horizontal surface. Correct it with roof-plane, shading and demand analysis.
- Equating “more glazing” with sustainability: add daylight analysis and summer heat-load checks before increasing window area.
- Relying only on interior blinds: interior blinds control glare after radiation has entered. Evaluate external eaves, awnings, screens or louvres where summer heat is the dominant problem.
- Assuming a cool or cloudy day is UV-safe: check the UV Index and apply the combined Cancer Council measures at 3 or above.
- Calling planning guidance universal: the cited housing policy is tied to its stated planning context. Confirm the rules that apply to the actual jurisdiction and project.
- Promising financial returns without inputs: prices, payback, bill reductions and output depend on location, equipment, tariff, financing, maintenance and use. Do not infer them from the national generation shares.
What can be concluded—and what still needs project evidence
The national evidence supports a clear conclusion: Australia has a substantial but uneven solar resource, and solar already supplied 19.7% of total electricity generation in 2025. PV and solar thermal offer different energy services, while passive design can use sunlight without purchasing energy when its seasonal behaviour is controlled.
It does not support a single national prescription. A building’s result depends on its climate, orientation, shading, glazing, thermal mass, ventilation, occupancy and controls. Before committing to a system or façade, obtain a site assessment and model the relevant season, room and energy service. Keep UV protection in a separate checklist because thermal comfort and UV exposure are different measurements.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
