What each slide does

1. 01CoverThe product's promise as the title and three key specs under it; beside it, the product drawn in isometric in tints of the accent.
2. 02The ideaThe idea in one large sentence with key words in the accent and two lines under it; beside it, a simple drawing that shows the idea.
3. 03The problemThe problem as a drawn chart: two curves over a year, supply and demand, with the gap between them shaded and labelled; a key underneath.
4. 04In four stepsHow it works in four steps: a small isometric drawing for each, its number, a short name and one line.
5. 05InsideWhat is inside as a cross-section drawing with numbered callouts on each part; beside it, each number with its name and one line.
6. 06The coreA close-up of the core from above: pipes winding through the hot sand, coloured from cool to hot, with a temperature scale; beside it, the core's key numbers.
7. 07Holding heatHow it behaves over time as a native line chart, with the two numbers that matter beside it.
8. 08How bigSizes to scale: the product's sizes drawn as silhouettes beside a person and a house on one ground line, each labelled with what it serves.
9. 09ComparedThe product against alternatives on a radar: five measures as axes, the product filled in the accent and the others as dashed outlines; beside it, what each shape means.
10. 10The systemHow it fits in a wider system, drawn as a schematic from left to right: where the energy comes from, the product, the network and who it serves, with labels under each.
11. 11A dayA day of operation on a 24-hour dial: the hours it charges in the accent and the hours it releases in a tint, a number in the middle; beside it, what happens when.
12. 12A yearA year of operation as a native bar chart of energy stored and released by month, with what it means beside it.
13. 13Built fromWhat it is made of as an exploded isometric view: the parts lifted apart and numbered; beside it, each part with its material and share of cost.
14. 14SafetySafety in four tiles: an icon in a turned square, a short claim and one line of why.
15. 15Where it runsWhere it already runs: a photo place for each site, its name, place and year, and three numbers.
16. 16WordsThe technical words used, as a key in two columns: the term or unit, what it means in plain words, and an example.
17. 17CostHow cost is falling as a native line chart, with the reason and the next step beside it.
18. 18MythsCommon myths against the facts, one pair per row: the myth struck through on the left, the fact on the right, each with a mark.
19. 19From lab to gridThe path from first prototype to full scale: each stage drawn as a block growing in size, a dot on a line, the year, its name and one line.
20. 20Free layoutA free slide: only the header, title and footer, the body empty. Design it for content no other layout fits.
21. 21Next stepsWhat you would like the audience to do next, then the dated steps.
22. 22ContactsWho to talk to: two people with role, email and phone.
23. 23AppendixAn appendix divider: detail goes after it, not into the main story.
24. 24DatasheetAppendix detail: the specifications as a datasheet in two columns, each line a property and its value.

What makes it work

• Say the idea in one sentence a twelve-year-old would understand.
• Show the problem before the solution, as a picture, not a paragraph.
• Explain how it works in no more than four steps, each with a drawing.
• Open it up: a cross-section or exploded view with numbered parts.
• Compare it fairly with the alternatives on what buyers care about.
• Keep the specs for the appendix; the main deck is about understanding.