Distributed Energy
1 min read

Solar PV isn’t just about yield

Inspired by the lively discussion that resulted from Gavin Mooney‘s recent post on what direction to point roof-top solar systems, we crunched a few numbers to help inform the conversation.

The analysis looks at a single commercial load shape (I picked an office building) & how the financials might play out if it was equipped with solar PV oriented either 0° North or 270° West. We virtually located the office in 4 different jurisdictions, each with its own network tariff & wholesale market & of course with different solar yield.

We then added a 200kWh battery with either 50kW or 100kW of output & simulated a range of control modes. Finally we threw in a couple of different solar system sizes, 99kW & 200kW.

The outputs are quite complex to display graphically but I’ve had a crack. The first two charts show NPV (y-axis) & avoided grid consumption (x-axis) for each potential scenario. Icon colour indicates the site’s location, icon shape represents the orientation of the solar system. The label identifies whether the system is co-optimised with a battery and if so what the spec & control mode is.

The final chart is just an indicative week for the Perth site to demonstrate how W facing solar performs and the residual site load shape. I’ve used the IRCR days for illustration.

Pete Tickler
CHIEF PRODUCT OFFICER & CO-FOUNDER | PETE IS A WIDELY RESPECTED INNOVATOR & EXPERT IN THE AUSTRALIAN ENERGY INDUSTRY.
Gridcog
view aLl articles
Making NEOM The Line Photo-Voltaic

What would happen if you clad NEOM The Line in Photo-Voltaic material?

READ MORE
Solar Fence vs Conventional Ground-Mount Solar

What is a solar fence and how does a solar fence stack up compared to conventional ground-mount solar in London and Sydney?

READ MORE
UK Residential Solar PV Payback Analysis

Our previous post looked at the difference between what a residential solar owner in London might be paid under the various SEG export tariffs and what that energy would be worth on the balancing market.

READ MORE
Subscribe for updates
Thank you for subscribing to the Gridcog blog.
Oops! Something went wrong while submitting the form.
Related Articles