Tag Archives for " batteries "

How Much Does the sonnenBatterie Cost?

sonnenBatterie-costs

How much does the sonnenBatterie cost compared to Tesla’s Powerwall?

With the German battery storage manufacturer sonnenBatterie entering the US market and announcing a new, low-cost option for the US, interest in their products seems to be gaining traction on this side of the Atlantic. Let’s take a look at who sonnenBatterie is, how much sonnenBatterie costs, and how they compare to their competitors.

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The “Tesla Off Grid Generator” Scam vs Elon Musk’s Powerwall

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Is the Tesla Off Grid Generator legitimate or a scam?

Nikola Tesla was a famous engineer and inventor best known for his contributions to electricity supply systems. Many have tried to imitate his greatness but few have succeeded. How can you tell if machines currently on the market that bear Tesla’s name, such as the Tesla “Off Grid Generator”, are fact or fiction?

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Problems with Solar Energy – Why Solar Hasn’t Taken Over the World (Yet)

problems-with-solar-energy

Why are we experiencing problems with solar energy?

If solar is so absolutely great, and we’re hurtling towards a climate catastrophe, why does it only power about 2% of the world? If it’s the panacea to our problems, why aren’t solar panels adorning rooftops the world over? What are the causes behind the problems with solar energy that we face?

To answer such questions, we at UnderstandSolar have dug into the facts and present the fruits of our labor below – an unfortunate tale of G20 hypocrisy, the Concorde fallacy (find out what this is later), and the sobering fact that we still need fossil fuels to power our planet (at least for now).

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How to Store Solar Energy with a Solar Battery

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Choosing a solar battery to store your solar energy.

Solar energy from your roof sounds simple, right? The sun shines, electricity is created, and it powers your home. But a lot of people wonder… what happens at night, or on cloudy days when your panels don’t produce? Wouldn’t it be nice to store the extra power you create on a bright, sunny afternoon with a solar battery so you can always make use of solar energy?

Solar battery storage isn’t just a household problem, but a challenge the solar industry is tackling as a whole. Solar is an effective, clean, affordable form of power, but it won’t truly be able to take over until storage technology catches up. The industry has been taking off in the past few years, and the race for solar storage has been dubbed a ‘technology arms race’.

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How to Get Solar Power Without Batteries

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Installing solar power without batteries

How do you store the energy, anyway?

If you’re interested in purchasing a new solar system, then you likely have a lot of questions about how the system works and what you will need to suit your individual needs. One question that comes up often is whether or not a solar system needs a battery and how to get solar power without batteries. It’s really a trick question because although most systems don’t use batteries at all, but use the electrical grid as a sort of flexible battery storage and on demand power system. If this makes no sense, that’s fine, because we’re going to explain!

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Tesla Powerwall 2 Review

Tesla Powerwall 2

Here we review the Tesla Powerwall 2, which aims to be a simple solution to the difficulties with solar power, by making sure you’ve actually got the power when you need it.

If you are at work for most of the day, almost all of the power consumed by your house is used in the evenings, when your solar panels are no longer generating electricity. To use the solar power generated, you could consider using timers to move power-hungry tasks like laundry and dishwashing into the day, where they can take advantage of your solar system. Depending on how big your solar array is and how much power your house uses.

Alternatively – you could look at buying a battery. When buying a battery for your solar system you need to consider the costs involved. You would need to spread the cost of the battery over its lifespan, and take into account how often you’ll cycle it – the more you use it the cheaper it will work out on a per-kilowatt-hour basis. You might find that it works out cheaper for you to use grid power in your area, though you might still consider buying a battery if you need short term protection from black-outs. Or even better than just buying a battery, you could buy a Tesla battery, better known as the Powerwall 2.Continue reading

How Is Solar Energy Stored?

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Solar energy storage is often misunderstood.

There’s a lot of information online and it’s often in the news claiming it’s the next big thing in the solar industry.  You might have heard that in places like Hawaii and California it’s even cost effective to install a solar system with storage today. But what does that mean exactly? What exactly is solar plus storage and how does it work for homeowners connected to the utility grid?Continue reading

Include Batteries with Your PV to get a 30% ITC for Storage

PV storage

With the increased interest in battery storage, as a companion to a PV installation, the IRS, in October put out a request for comments on ways to improve the battery storage 30% ITC.

The IRS will issue a final ruling at the end of 2016 on the specific conditions under which batteries are eligible for the 30% ITC

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Do clean energy projects have adverse effects?

There can always be adverse unintended consequences when we seek to make the world better. The trick is knowing the difference and proceed understanding the whole picture.

When Florida brought in thirsty melaleuca trees to deal with the swampy conditions they never dreamed they would snuff out native species and they would be impossible to eradicate. We need to learn from these lessons and consider the domino effect of what we do. It is great to institute clean energy projects, but we must be cognizant of the potential adverse effects when doing so.

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What About Better Batteries for Solar Power?

The current electricity grid as we know it works by pulling from different power sources. Since large amounts of electricity are hard to store, it just continues to pull electricity.

But what if we looked at power as something that doesn’t come from a giant electric grid? What if it just came from rooftop solar panels instead?

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