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Energy verified Verified Outcome TRL 8

Grid-Scale Gravity Energy Storage

domain Client: Grid Operator / Renewables Developer handshake Provider: Energy Vault schedule Deploy: 2021-Present
89 Impact
Enterprise Ready
Evidence Score: 5/10
Strength: High

Executive Summary

ANALYST: COI RESEARCH

Construction of a gravity-based storage system that lifts massive composite blocks using excess renewable energy and lowers them to generate electricity, providing long-duration storage without chemical batteries.

rate_review Analyst Verdict

"Low-tech solution to a high-tech problem. While lithium-ion degrades and requires mining, gravity is infinite. This system recycles waste materials (blocks made of dirt/ash) and offers a 35-year asset life, ideal for replacing coal baseload."

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Full Audit Report Available Includes Risk Register, Technical Specs & Compliance Data.

warning The Challenge

Wind and solar are intermittent. Storing gigawatt-hours of energy for night/calm periods using lithium-ion batteries is prohibitively expensive and environmentally taxing (mining). Pumped hydro is geographically limited. The grid needs a scalable, non-degrading mechanical battery.

psychology The Solution

Built the EVx system (Rudong, China). It is a massive structure with automated cranes. When power is cheap (excess wind), motors lift 24-ton blocks to the top. When power is needed, blocks are lowered, spinning the motors as generators. The system uses advanced software to manage the kinetic energy and keep output smooth.

settings_suggest Technical & Deployment Specs

Integrations
Dispatch Software
Deployment Model
Infrastructure Asset
Data Classification
Industrial Control
Estimated TCO / ROI
High CapEx / Low OpEx
POC Summary (2021 to 2023)

"Commercial deployment in Rudong."

shield Risk Register & Mitigation

Risk Factor Severity Mitigation Strategy
Mechanical Wear Medium Crane maintenance schedule.
Seismic Risk Medium Structural damping design.

trending_up Impact Trajectory

Audited value realization curve

Round-trip efficiency > 80% Verified Outcome
Primary KPIZero degradation of storage medium over 35 years
Audit CycleBlocks manufactured from waste materials (coal ash)

policy Compliance & Gov

  • Standards: Grid Interconnection
  • Maturity (TRL): 8
  • Evidence Score: 5/10
  • Data Class: Industrial Control

folder_shared Verified Assets

description
Verified Case Study
PDF • Version 1
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Technical Audit
PDF • Audited
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The "Blind Verification" Protocol

How we verified these outcomes for Grid Operator / Renewables Developer without exposing sensitive IP or identities.

Private
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1. Raw Evidence

Audit ID: #PRIV-708
Evidence: Direct SQL Logs
Public
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2. Verified Asset

Outcome: Verified
Ref ID: #COI-708

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