The price gap shows whether the asking price of a solar project holds.
Some projects should die early and cheaply. The rest should not die of paperwork.
Choose the asset, tick what is already secured and set a few sliders. If there is an asking price, enter it as well. We then show what the project supports today, the gap to the asking price and what would have to be true to close it. Hover over any underlined word for a short explanation.
The asset we are valuing
Every number below rests on one idea
Show the formula
The life of a solar project
Tick each step the project has already reached. Ticking a later step also ticks the earlier ones.
Your numbers
These are example numbers for a typical project, taken from our September 2026 benchmarks. Replace them with yours, and the result updates as you go.
DEVEX, the money still needed to reach ready to build
This is the money and time still to be spent from today until financing closes and construction can start (NTP).
DEVEX is complete
The project is ready to build, so nothing is left to spend before construction.
CAPEX, the cost of building it
OPEX and revenue from running the solar plant
Storage, what the battery earns and what it costs
Enter the first-year revenue from all streams. It falls every year as more batteries arrive, as set out in the defaults below.
The asking price to test (optional)
Documented value of the rights (optional)
Enter this only when a document supports it, such as a written offer or the cost of rebuilding the land, grid and permits, and leave it at 0 otherwise. Worth today never goes below this figure.
DANBODD defaults (you can change them)
About this calculator
- The calculator gives a quick first view of what a project may be worth today and why. It is a screening tool and gives no valuation opinion.
- We work in three steps. We first value the plant at COD from its cash flows over its life. We then allow for construction time and build cost, which gives its worth at RTB. Finally we allow for the chance of reaching RTB and the development still ahead, which gives its worth today.
- Risk enters through the chance of reaching RTB (land × grid × permit), a premium on the required return while money is at risk, the time still to wait, the three scenarios and 10% prudence, taken once at the end. Every part of it is visible.
- Solar receives a falling share of the market price unless a contract fixes it, and battery revenue falls as more batteries arrive. Both effects are visible defaults.
- We show what buyers pay at each stage next to the result. It does not enter the calculation.
- The defaults are conservative, so the numbers leave room for a positive surprise. Every default is listed above and can be changed, and the full working sits under “How we calculated this”.
What a buyer is likely to pay today
Calculating…
Close the price gap
We work out the value of a project one idea at a time
There are eight short steps, and each adds one idea. You can follow them on our example or on your own project.