| Cover | Jan. 07, 2025 |
| Cover [Abstract] | |
| Entity Registrant Name | OCEAN THERMAL ENERGY CORPORATION |
| Entity Central Index Key | 0000827099 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | false |
| Document Period End Date | Jan. 07, 2025 |
| Entity File Number | 033-19411 |
| Entity Incorporation State Country Code | NV |
| Entity Tax Identification Number | 20-5081381 |
| Entity Address Address Line 1 | 3675 Market Street |
| Entity Address Address Line 2 | Suite 200 |
| Entity Address City Or Town | Philadelphia |
| Entity Address State Or Province | PA |
| Entity Address Postal Zip Code | 19104 |
| City Area Code | 717 |
| Local Phone Number | 299-1344 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
