Exowatt vs Fourth Power
Exowatt vs Fourth Power, compared side by side on 13 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Exowatt is on 52/100 and Fourth Power on 51/100.
Where each one leads
Exowatt
- agent readiness: 40/100 against 22/100
- domain rating: 40/100 against 1/100
Fourth Power
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Exowatt | Fourth Power |
|---|---|---|
| What it is | Exowatt develops modular, dispatchable solar energy systems for energy-intensive industries. | Developing advanced battery technology for grid-scale energy storage. |
| Category | Energy Storage, Solar Energy, Clean Energy, Climate Tech | Energy Storage, Battery Technology, Clean Energy, Grid Modernization |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2019 | 2017 |
| Headquarters | Palo Alto, United States | San Carlos, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Exowatt | Fourth Power |
|---|---|---|
| Employees | 79 | Not published |
| Open roles | 15 | Not published |
| Total funding | $40.0M | $49.0M |
| Latest round | Series A | Series A-Plus |
| LinkedIn followers | 11,022 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Exowatt | Fourth Power |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 52/100 | 51/100 |
| Traction | 54/100 | Not published |
| Team | 30/100 | Not published |
| Search visibility | 33/100 | 2/100 |
| Quality | 58/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (40/100) | F (22/100) |
| Domain ratingLink authority, 0-100 | 40/100 | 1/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Exowatt | Fourth Power |
|---|---|---|
| CDN | Cloudflare | Not detected |
| CMS | Webflow | Not detected |
| Analytics | Google Analytics 4 | Not detected |
Exowatt vs Fourth Power: common questions
Which is better, Exowatt or Fourth Power?
On our 0-100 score Exowatt rates higher (52/100 against 51/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 13 data points above: read the rows that match what you are buying for.
How do Exowatt and Fourth Power compare on the numbers?
Exowatt leads on agent readiness (40/100 against 22/100), domain rating (40/100 against 1/100).
Read the full Exowatt review and pricing or the Fourth Power review and pricing. You can also browse other Exowatt alternatives we track.