Technology
Technology deep-dives
LFP, NMC, sodium-ion, flow batteries, CAES, liquid air — chemistry, cost, and deployment.
TECHNOLOGY VerifiedBloomberg NEF · —
CATL unveils second-gen sodium-ion cell with 200 Wh/kg, claims grid parity by 2027
Naxtra 2.0 packs hit 200 Wh/kg at the cell level and target a $40/kWh bill of materials, with pilot deployments at two Chinese utility sites in H1 2026.
Why this matters · If validated, sodium-ion finally has the energy density to challenge LFP for 4-hour grid duty in cold climates — without lithium exposure.
David Stringer·5 min read·APAC
CATLSodium-IonNaxtra
ANALYSIS VerifiedWood Mackenzie · —
Analysis: $/kWh for utility-scale BESS could break $100 before 2027
BNEF, Wood Mac, and Clean Energy Associates now converge on a sub-$110/kWh DC system price by Q4 2026, driven by Chinese LFP cell overcapacity and falling EPC margins.
Why this matters · Breaks the psychological barrier that has gated peaker-replacement economics in PJM, MISO, and Southeast US.
Allison Weis·11 min read·Global
PricingLFPBNEF
ANALYSIS VerifiedIEA · —
IEA: Global battery storage additions to exceed 200 GW in 2026
The IEA's December tracker pegs 2026 BESS additions at 207 GW / 580 GWh, with China alone accounting for 58% of new capacity.
Why this matters · Reinforces the consensus that BESS will be the fastest-growing clean-energy asset class for the third consecutive year.
GridPulse Data Desk·5 min read·Global
IEAForecastGlobal