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We are pleased to welcome a guest post by Andrew Lister from Beam Energy Labs, a platform helping businesses assess and procure solar and batteries.
You may have missed the amazing drop in prices of solar PV and battery systems across the world over the past few years. As someone once said “Just when you thought prices couldn’t go any lower…”, well they did, by a lot, and repeatedly! To give you an idea, here are some examples of solar contracts signed over the last few years:
There are a couple of things you might notice about this table as you go from the top to bottom (past to present): Systems are getting bigger, more countries are getting involved, prices are getting smaller (a lot smaller) and, most importantly, we’re seeing Australian businesses entering the market in 2017 with site-level systems.
To put the Australian industrial site price of 7.7 c/kWh into perspective; If you’re lucky, 7.7 c/kWh is about a quarter of what you’d pay for electricity at home, or half what you’d likely pay as a business during peak times (during the day). The UAE example is probably even less than what you’re paying for some of your mysterious ‘other charges’ on top of your electricity charges.
How are they making money, you might ask? Well, there’s still plenty of money to go around, this suggests prices will continue to fall. For example, in the UAE, the installed cost of solar is expected to be under $400 per kW. And throughout the year, that 1 kW of solar will produce around 1,600 kWh. So, at 2.4c over 20 years you get $768. That’s a guaranteed return of over 3% – far less than the cost of capital for a lot of these companies.
So, what’s driving this drop in prices? Technological innovation has a lot to do with it. For solar PV, every year the quality of panels improves, the efficiency increases, the size increases and the cost decreases. It’s like the solar version of Moore’s Law. But there are a few financial innovations which are arguably having the greatest impact on prices. One of which is Reverse Auctions;
The reverse auction – like a normal auction but backwards – the lowest price wins! Think of the last time you purchased something from eBay – but in this instance, the process is reversed. So, instead of competing with other buyers to pay the highest price for the seller’s item, the sellers compete amongst themselves for the lowest price to supply you with that item. That’s a reverse auction in a nutshell.
How this works for rooftop solar is: If you’re a business and you want rooftop solar PV and/or batteries, whether this is through a PPA or you will put up the cash, you ask vendors to give you their lowest price. However, you can do it in an environment where all the vendors can see who has the lowest price and you give each vendor an opportunity to beat it.
How does a reverse auction compare to current procurement strategies for businesses buying solar PV and batteries? There are two basic levels.
Review quotes. Currently, at a minimum, most businesses will get three quotes before making a decision on implementing solar. But often, this doesn’t lead to implementation, as the business realises the shortcomings of the process before a decision is made. These shortcomings are: Limited vendors, difficulty comparing offers (comparing apples with oranges), wide variation in pricing, non-alignment of contract terms.
Request for Proposals. Most large companies will, and must, run a formal process for procuring large capital items or signing contracts, such as a PPA, over a certain value. This is typically in the form of an RFP, single-round or two-round. This isn’t necessarily a bad way to procure and it’s been done for centuries. The problems with this process for buying complex systems such rooftop solar PV and batteries are:
Most of the examples I provided in the table above were procured through a reverse auction process and it is well recognised as the best way to buy renewable energy for utility-scale customers. It’s also the best way for Australian businesses to buy solar PV and batteries, however, until recently, the platform has not been there to do it.
Reverse Auction. Putting aside the assessment component, the procurement component of reverse auction software is an online and automated platform, reducing customer and vendor effort to drive better outcomes. This is how it solves problems identified in the RFP process:
Solar and batteries are just getting started for businesses in Australia and there is a lot more to PPAs and Reverse Auctions. We could talk about it all day. We appreciate that you’ve come this far so we won’t hold you up any longer.
This blog post is an excerpt from Beam Energy Labs. The original content can be found here.
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