The cost of a solar power system can vary widely depending on the size of the system and the brand of the panels. Make sure you consider the cost carefully before making a decision.
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If you are paying substantially less than many other similar size systems quoted, you may find poor quality equipment and/or poor installation work. Quality equipment and installation aren’t cheap and, like all other purchases, you often get what you pay for.
Compare components and warranty periods and check with the company providing the installation. While large, well established companies can pass on substantial savings due to increased buying power, other companies often reduce costs by cutting important corners.
The Australian government offers incentives for homeowners who install solar power systems, such as solar rebates, incentives and feed-in tariffs. Check with your local government to see what incentives are available in your area.
This applies to all solar panel purchases, but especially to the purchases that could attract a government rebate. The certification on solar panels indicates the type of testing they have undergone. For instance, TUV IEC confirms that the solar panels have been tested by an independent laboratory and have met their advertised specifications. Other certification types are often self-assessed. Therefore, they rely on the company being honest in what it claims.
There are many different brands of solar panels available in Australia, and not all of them are created equal. Research different brands to see which ones have a good reputation for reliability and performance.
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It used to be the case that if you had limited roof space you would need highly efficient (and very expensive) mono-crystalline solar panels. This is rapidly changing with advances in solar PV photovoltaic (PV) technology such as the traditional solar panels: polycrystalline and thin film solar panels. Even if you have ample roof space you may still want to consider solar panel sizes vs. output. Filling up your roof with inefficient panels will affect your ability to add more panels later, and does not maximise the power output of the space.
It’s also important to bear in mind that regardless of claim, no solar panel technology will produce a significant amount of power in full shade. Learn more about monocrystalline vs. thin film panels.
Solar panel
Solar panel efficiency is the amount of sunlight that can be converted into electricity by a solar panel. Higher efficiency panels can generate more electricity in less space, which can be useful if you have limited roof space. However, higher efficiency panels are also more expensive, so you’ll need to weigh the benefits against the cost. Check out our page to learn more about the best solar panels such as REC, LONGi and Sunpower.
Solar inverter
A solar inverter is a box between the panels and your appliances that converts DC electricity from solar panels to AC suitable for use in your home.
Not all solar inverters are equal and inverter efficiency will have a direct impact on the amount of time it takes for a system to pay for itself. Look at the inverter efficiency before purchasing a system. Obviously, the more efficient the inverter the better. Less electricity will be wasted as heat during the conversion from DC to AC. Industry leading solar inverters for grid connect systems in Australia include GoodWe, Fimer and Enphase. Be cautious of generic type brands. Visit our page to learn about the best solar inverters.
Solar battery storage
At the very least, many people are making sure their solar PV systems are battery-ready or investing in home battery storage. Batteries are frequently considered more about being as independent of the grid as possible and less about pure economics such as Tesla Powerwall2. This is especially true for residences in regions that experience regular blackouts or other issues with the supply of power.
For every kWh of charge put in, how much will the battery store and put out again? There’s always some loss, but a lithium battery should usually be more than 90% efficient. Check out our page to learn about the best solar batteries.
High pressure sales tactics are unfortunately common in the solar industry. Try not to make decisions on the spot, just ask the person to let you consider the offer. If it’s as good as they claim, it will still be a good deal tomorrow. Pressured decisions on the spot often turn out to be less advantageous in reflection.
High pressure sales people are only one of the pitfalls that may await you when you shop for a solar power system. Learn more about the potential issues and how to avoid them in our consumers guide to solar power – avoiding tricks and traps.
One of the best buying solar tips is to make sure to use an accredited solar power system installer, certified by the Clean Energy Council.
Installing a solar power system is a complex process, so it’s important to find an experienced installer. Look for a company with a good reputation for quality installation work.
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It is always wise to gather a few residential solar quotes when making a major purchase as you will find that prices vary widely between providers.It is always wise to gather a few residential solar quotes when making a major purchase as you will find that prices vary widely between providers. But don’t be just swayed by price as inferior components can reduce the up-front cost of the system. However, they may wind up costing you more in the long run in terms of reliability and efficiency.
The Current State of BIPV
Rooftop solar products have undergone a renaissance. Price reductions, policy-related advocacy and product availability have made commercial and residential solar panels commonplace. However, BIPV systems take solar’s advantages further by making renewable energy a structural component. These systems also complement other solar variants like bifacial panels to maximize generation per panel.
The BIPV market in the U.S. is predicted to have a compound annual growth rate of 22.1% between and . Meanwhile, Europe’s BIPV revenue grew 37.1% in , outperforming the rest of the world. A combination of consumer curiosity and government interest is clearly promoting its viability, and corporations are taking action by engaging in strategic partnerships to advance BIPV innovations.
BIPV systems could be in the form of pre-installed solar shingles or window glazing. It is a diverse technology with seemingly limitless potential. Innovations like thin-film technologies support the idea of incorporating solar generation into all aspects of the home, including carports, awnings, facades and more. While rooftops are optimal for getting the most exposure, the sun’s rays reach many surfaces and could have more utility than they currently do.
The Reason BIPV Has Promise
The versatility and malleability of BIPV systems make them enticing to modern professionals and consumers. The advantages warrant more expansive research and knowledge-sharing inside and outside the industry. If widely implemented, BIPV systems can help save on construction materials by incorporating solar energy. They can also reduce maintenance costs and needs, saving even more raw resources in the process.
Additionally, BIPV systems promise energy independence and resilience. They allow builders to leverage every inch possible to produce power. If the home is connected to battery energy storage solutions, then the house — and its community, if connected to a microgrid — will benefit. The surplus can alleviate financial burdens by not having to rely on utility companies during peak times and provide sustainable energy to neighbors. If an outage occurs, the backup power keeps lights on — all because BIPV systems gave households countless avenues to store more resources.
Recently, California passed a mandate requiring all new builds in the state to have solar panels. While most of this manifests as rooftop solar, similar legislation could expand BIPV systems and make them more accessible to the average citizen. Prospective homebuyers would no longer need to seek an external provider or worry about financing — everything is bundled for a streamlined, eco-friendly home-buying experience. Notably, buyers also like the more aligned aesthetic. Home values could increase because the solar assets feel part of the build instead of tacked onto a rooftop.
The Possibilities for BIPV and BAPV
While BIPV is exclusive for new builds, building-added or applied photovoltaics (BAPV) is a way to add solar products after construction. Corporations can take advantage of BAPV systems for monumental utility savings and increased uptime.
For example, in a restaurant, refrigeration can use 10% to 20% of a restaurant’s electricity. It is precarious to have one business-critical asset capitalize on so much money and electricity. However, it demonstrates where massive savings can occur. The restaurant could add BAPV systems, especially if it features interior aesthetics like bay windows or skylights.
BAPV and BIPV systems absorb heat that would otherwise impact internal temperatures, so they can help lower energy costs and needs. A research effort in Dubai discovered that BIPV reduced high-rise building energy consumption by up to 32.8% by adding BIPV on windows and exterior walls.
The Factors Experts Consider for Longevity
If renewable energy and construction professionals want BIPV’s positive reputation to persist, they must preemptively tackle potential obstacles. Otherwise, structures with BIPV might endure some headaches in the near future.
Compatibility is the first concern. Most buildings will receive BIPV as a new construction, so fit shouldn’t be an issue. However, maintenance and replacements should be able to occur easily, which means the integrations cannot be too limiting. Additionally, BIPV systems must be sturdy and durable. Installers and engineers will need to strive for this delicate balance.
Many are also concerned with fire safety despite regulatory bodies and third-party testing agencies working to refine manufacturing guidelines. Advanced frameworks will be necessary as BIPV expands, though renewable energy installers can educate customers on what exists to keep buildings protected. Sometimes, knowing there are systems in place to oversee BIPV production is enough to keep adoption momentum alive.
Finally, cost is the most prohibitive barrier for commercial and residential installations. Conventional solar panels are objectively cheaper in most cases, but the cost is circumstantial compared to other energy-efficiency strategies. An economic feasibility test in northern Texas tested how BIPV would impact citizens’ finances compared to green roofs. Based on the levelized cost of electricity, green roofs cost 39.77% more than BIPV because of discounts and the profits associated with the latter.
The Future of BIPV
In general, solar seems to be on an unbeatable path to becoming the world’s most common renewable energy generator. BIPV systems are pivotal in advancing this, incorporating green power into more places than rooftops and backyards. They expand the possibilities of where clean electricity can come from, challenging related industries to diversify their technologies to be more adaptable. Eventually, BIPV systems will disseminate fears around renewable reliability until sustainable energy becomes an irrefutably obvious choice.
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