# Sizable Energy

**Canonical:** https://apis.io/providers/sizable-energy/  
**Website:** https://sizableenergy.com/  
**APIs profiled:** 0

Sizable Energy is a Milan, Italy based clean-energy company developing offshore pumped hydro energy storage. Its patented system pairs subsea and floating reservoirs connected by pipes with reversible pump-turbines that move saturated sea-salt brine between them to deliver long-duration, grid-scale energy storage. The modular, scalable design leverages proven pumped-hydro technology with zero land use and integrates with floating wind and solar installations. It was added to the API Evangelist network as a portfolio company of Playground Global; as of this enrichment pass the company publishes no public API, developer portal, or SDKs.

## Kin Score — 6.7 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 6.7).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 2.4 |
| Commercial Clarity | 10.5 |
| Access Clarity | 10.5 |

Regulatory layer — **Energy & Utilities**: 13.5 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Sizable Energy Domain Security** — TLSv1.3 · DNSSEC

## Tags

Company, Energy Transition, Energy Storage, Pumped Hydro, Offshore, Long Duration Energy Storage, Renewable Energy, Clean Energy

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/sizable-energy/). Scores are computed from the provider's own public artifacts under a published rubric.