The Calibre Yearbook · FY 2024–25

Fifteen issues of
engineering insight.

Our newsletters from FY 2024–25 — deep dives into India's transmission sector, composite insulator technology, silicone science, and the craft of manufacturing.

01

Diving Deep into India's Evolving Transmission Sector

How India's power transmission network became one of the world's largest integrated grids — growth drivers, challenges, and the road ahead. CSE Newsletter, FY 2024–25.

7 min read →
02

Grid Scale Storage — Moving Away from Lithium

Why India's 34 GW battery storage build-out is looking beyond lithium: vanadium redox, zinc-bromine and sodium-sulfur technologies compared in depth.

9 min read →
03

The Paradigm Shift: Porcelain to Composite Insulators

Rising pollution is accelerating the move from porcelain to composite insulators. Handling, failure modes and contamination performance compared.

5 min read →
04

Indian National Energy Plan (Volume II — October 2024)

Key projections from India's National Energy Plan: 1,14,687 ckm of new transmission lines by 2027, the 2027–32 perspective plan, and greening the Andaman & Nicobar Islands.

3 min read →
05

Silicone Rubber & Its Applications

From siloxane chemistry to automotive, aerospace, medical and energy uses — an introduction to silicone rubber and why it outperforms conventional elastomers.

4 min read →
06

Indian Cross Border Grid Interconnections

India's power links with Sri Lanka, Bhutan, Nepal and Bangladesh — the HVDC projects and agreements building South Asia's interconnected grid.

4 min read →
07

Hydrophobicity of Composite Insulators

Why water beads on silicone insulator surfaces, how hydrophobicity recovers after damage, and the key test methods — from contact angle to spray classification.

4 min read →
08

Tracking & Erosion in Composite Insulators

How electrical tracking and erosion degrade polymeric insulators, and the inclined-plane and related tests that qualify materials for harsh outdoor service.

3 min read →
09

EV Charging Infrastructure in India

The state of India's EV charging build-out: charging system basics, public infrastructure numbers, and the road to accessible electric mobility.

4 min read →
10

Silicon Content Test in Composite Insulators

Low silicone content quietly undermines insulator performance. What 35% vs 50% silicone means for hydrophobicity, erosion resistance and service life.

3 min read →
11

Injection Moulding of Composite Insulators

Machines, moulds, and process control: what determines quality and conformity in the injection moulding of silicone composite insulators.

4 min read →
12

Maintenance in Injection Moulding for Composite Insulators

A preventive maintenance playbook for insulator manufacturers — daily cleaning discipline, thermal management, mould care and hydraulic system schedules.

8 min read →
13

Masterclass: Humidity in Manufacturing

Absolute vs relative humidity, dew point, and why moisture control makes or breaks silicone insulator moulding. A practical shop-floor masterclass.

4 min read →
14

Transmission & Distribution Industry in the EU

Inside the EU's grid modernisation push: synchronous regions, market structure, €583bn investment trajectories and what they mean for the supply chain.

4 min read →
15

The Calibre News: The Calibre Story

Milestones from CSE's journey — growth from niche entrant to India's largest HV insulator compound maker, and the systems behind consistent quality.

4 min read →