2 ms·
Yes, correcting for capacity factor is essential if you want to compare potential energy generated over a year (which is perhaps not the most common use of thes
by epistasis 3y ago
Yes, correcting for capacity factor is essential if you want to compare potential energy generated over a year (which is perhaps not the most common use of these numbers). Gas generators are typically less than 50% capacity factor, and batteries should have course have a 0% capacity factor for comparison of energy created over a year
However, your capacity factors for solar are far too low, average CF is above 20%. There are roughly as many installs with CF>30% as there are with CF<15%.:
https://emp.lbl.gov/pv-capacity-factors https://emp.lbl.gov/pv-capacity-factors
Also omitted from this view is the cost per MWh delivered to the grid. A great overview of the current state of the technology, including costs ($40/MWh), is here:
https://emp.lbl.gov/sites/default/files/utility_scale_solar_2023_edition_slides.pdf https://emp.lbl.gov/sites/default/files/utility_scale_solar_...
There's also a great overview of the state of batters here, where conservative estimates of lifetime cost of stored energy results in about $88/MWh:
https://www.nrel.gov/docs/fy23osti/85332.pdf https://www.nrel.gov/docs/fy23osti/85332.pdf
For the new nuclear cost, it's actually really hard to dig up, because it's a bit too embarrassing to the industry. But by taking the factors from this slide deck:
https://liftoff.energy.gov/advanced-nuclear/ https://liftoff.energy.gov/advanced-nuclear/
And scaling the slide 14 numbers for $9k/kW overnight cost to the real cost of $15/kW at Vogtle, and we get nuclear costs north of $180/MWh for nuclear when including the new subsidies from Biden's IRA legislation (north of $200/MWh unsubsidized).