Lesser-known renewables: tapping into the power of Nature

Wonders and damages have been done during the 300-year reign of fossil fuels. We are now presented with even more renewable energy sources to choose from. We'll discuss low grade & high grade energy, heat and electricity, biomass, biogas, biomethane, geothermal energy and solar thermal.

Different sources of energy: which one is less “bad”?

Any choice we make on our energy source will have an impact on the environment. Something that does not have an impact simply does not exist. In order to make informed choices, we'll examine here the advantages and disadvantages of different energy sources: coal, oil, natural gas, hydropower, wind power, solar power while comparing their energy density and carbon intensity.

The absurdity of gardening

Formal gardens were never meant to nurture man. These high-energy and labor-demanding green ornaments were made to “manifest glory and power” and only accessible to a handful of the population. Until we decided to clone this practice - applied to a handful, to the majority. What if edible gardens become the new norm, both for private residences and urban green spaces?

Less waste, less energy: better ways to heat places in a temperate climate

In a temperate climate, heating takes up a big part of your energy budget - and the current solutions are not optimal. What are better ways to heat our home? We'll discuss underfloor heating, heat pump, passive house, tile stove, rocket mass heater and ancient thermal insulation objects such as folding screen, four-poster bed or Japanese food stove Kotatsu.