Orrin
12 TWh or 3.7 TWh: Switzerland's Winter Gap Starts at the Heat-Pump Meter
TA-SWISS modelled winter imports to 2070: 12 TWh in 2050 'Offene Märkte' without a reactor, 3.7 TWh in 'Autarkie'. Find your building's winter ratio.
Halzen's Nobel Is a Construction Story: The South Pole Ice Became the Instrument
Francis Halzen's 2026 Physics Nobel honours IceCube: 86 boreholes, 5,160 sensors on a 125 m hex grid in South Pole ice. What the site-as-material means for you.
Zürichsee at 405.28 m: The Dry Summer, and the Cold Layer Buildings Run On
Eawag's Bouffard report: 12 of 26 Swiss lakes at record lows, surfaces +3 °C. Why Swiss lake-water networks must be designed for the hot year.
Rock That Microbes Build: ETH's Karen Antorveza Paez Grows Facade Elements Without a Kiln
ETH's Karen Antorveza Paez grows sand into a 30×20×20 cm facade element with bacteria at room temperature. Here are the MPa figures, the ammonium cost and a Hack.
1,547 m down, about 65 °C: Basel votes 89–1 to grow Riehen's heat network
Basel's Grosser Rat lends CHF 7.6 million to grow Riehen's 1994 geothermal heat network by 5.5 km and 620 connections. What it means for your heating design.
The Alpine water tower's 2026 statement: 5.5 % of Swiss ice, 2.2 km³ downhill
SCNAT and GLAMOS report 5.5 % Swiss glacier loss in 2026, second only to 2022. What 2.2 km³ of meltwater means for hydropower and Alpine design data.
Reading the Planet's Heat Ledger: ETH's Gergana Gyuleva Re-weighs the Climate Models
ETH Zurich's Gergana Gyuleva used satellite energy-imbalance data to re-weigh climate models: 3.25 °C by 2100. What it means for Swiss design weather files.
A 50% Better Rain Forecast Meets the Bauleitung: Read the Grid and Error Bar
Google claims WeatherNext 3 gives 50% better rain forecasts a day ahead. What a 0.25° grid cell means in Zurich, and how Bauleitung teams should test it.
Week 39 in Review: Read What Is Already Built — Ten Isotopes, Old Bridges and a Shared IFC Vocabulary
Week 39 on PAZ Kaffi: ETH Zurich reads Earth's recipe from ten isotopes, Swiss data dictionaries, old bridges, Chair44 and a 0.80 m IFC door check.
One Local Quarry: How ETH Zurich Read Ten Isotopes to Find Earth's Recipe
ETH Zurich's Sossi and Bower re-read ten isotope systems in open data: Earth formed from inner Solar System material, under 2 percent from beyond Jupiter.
