Okay, let's clear this up: When someone says "battery-ready" for a solar PV system, they mean it's set up with a hybrid inverter but doesn't include a battery yet. Hybrid inverters are made to add batteries later, but they're not your only choice for doing so in a grid-tied PV solar system.
In our opinion depending on future technology promises to influence your solar PV system choice should be discarded, along with so-called 'expandable solar systems.' If you aren't ready to add batteries right now, it may not happen, so don't let it impact your inverter selection.
That doesn’t mean you shouldn’t add batteries later!
If I had to choose between the two, I'd lean towards a regular grid-tie string inverter. While I'm not one for taking chances, this option seems more likely to align with my future battery goals. If I were starting fresh with a PV system and a battery, I'd opt for a hybrid inverter. But hey, that's just my take!
String inverter systems work with AC-coupled batteries, and these batteries are not picky about the inverter brand. They're hooked up to the AC part of the electrical system, so it doesn't matter at all which brand or how many inverters are also connected.
However, hybrid inverters are DC-coupled and come with compatibility restrictions. Only certain battery models will be compatible with each inverter. Plus, there's no assurance that your preferred battery will still be available in the future. So, when you're ready to install it, you might find yourself in a sticky situation.
Although there are other factors to consider when picking an inverter, this one alone is enough to sway my hypothetical decision in favor of a string inverter when hoping to add a battery later. It’s like an insurance policy to strengthen my chances of fulfilling my plans.
Perhaps I'm being overly cautious? Boring! Hybrid inverters paired with batteries have several benefits over string inverters AC coupled with batteries. Why not take a chance? You've got to take risks to reap the rewards, right? In support of the 'battery ready' hybrid inverters:
No doubt, people are asking this question mainly because they're waiting for battery prices to drop. Can't assist with that, sorry. But I've presented a solid argument for both inverters. Now, let's shift gears and make a case for installing a battery right away instead of waiting. (By the way, I'm not advocating for or against home batteries, and definitely not trying to sell you one!)
1. If you're considering a battery, it's cheaper to install it alongside your solar system regardless of the inverter you choose. Avoiding a second installation visit saves a heap of cash. It's pretty much common sense, but I'll say it anyway.
2. They say a week's a long time in politics, and the same goes for the solar industry. Will your installer still be available after all your dilly-dallying? Will the network rules remain unchanged? Electricians aren't usually keen on fixing issues from other installers' past jobs. They're bound by current regulations, which can lead to headaches and extra costs for you.
Discover your power solution! Explore the benefits of both hybrid and solar inverters for future battery integration. Choose wisely for your energy needs today and tomorrow.
While a hybrid inverter is designed for DC coupling with a battery, you can still add an AC-coupled battery to your system. Concerns about being stuck with a specific brand may not actually happen. However, it's not the best scenario, and could end up wasting money if you pay for inverter features you won't use.
Lastly, remember to discuss your future battery plans with your installer during the design phase. Consider this when deciding the location of the inverter, potential battery placement, modifications to the switchboard, and planning for future cabling needs for the battery, backup circuits, and monitoring.
[Disclaimer: The blog post is for informational purposes only and should not be considered professional advice. For accurate and up-to-date information on renewable energy, refer to reputable sources and consult with experts in the field.]
Please don’t hesitate to contact Betta Value Renewable Energy if you have any questions about this topic.
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