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The physical motivations and advantages of the new gamma-observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) is presented. The TAIGA array is a complex, hybrid detector for ground-based gamma-ray astronomy for energies from a few TeV to several PeV as well as for cosmic ray studies from 100 TeV to several EeV. The TAIGA will include the wide angle Cherenkov array TAIGA-HiSCORE with ~5 km2 area, a net of 16 I ACT telescopes (with FOV of about 10x10 degree), muon detectors with a total area of up to 2000-3000 m2 and the radio array Tunka-Rex.

Observations of gamma rays up to several 100 TeV are particularly important to spectrally resolve the cutoff regime of the long-sought Pevatrons, the cosmic-ray PeV accelerators. One component of the TAIGA hybrid detector is the TAIGA-HiSCORE timing array, which currently consists of 28 wide angle (0.6 sr) air Cherenkov timing stations distributed on an area of 0.25 km2. The HiSCORE concept is based on (non-imaging) air shower front sampling with Cherenkov light. First results are presented.

TAIGA stands for \"Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy\" and is a project to build a complex, hybrid detector system for ground-based gamma- ray astronomy from a few TeV to several PeV, and for cosmic-ray studies from 100 TeV to 1 EeV. TAIGA will search for \"PeVatrons\" (ultra-high energy gamma-ray sources) and measure the composition and spectrum of cosmic rays in the knee region (100 TeV - 10 PeV) with good energy resolution and high statistics. TAIGA will include Tunka-HiSCORE (an array of wide-angle air Cherenkov stations), an array of Imaging Atmospheric Cherenkov Telescopes, an array of particle detectors, both on the surface and underground, and the TUNKA-133 air Cherenkov array.

In this paper, the calculation and determination of the parameters of a mini-CHP on the basis of a heat pump is carried out, using four different plant diagrams as the power supply for the heat pump. Thermodynamic calculation of the heat pump. Calculation of the efficiency of the heat pump. Analysis of structural schemes for generating electricity using micro-thermal power plants and based on heat pumps A comparative analysis of the effectiveness of various schemes with mini-CHP. An assessment of the capital costs of installation, operation and determination of the payback period of the mini-CHP on the basis of a heat pump with various plant diagrams is carried out and the most economically advantageous scheme is selected. The practical application of the studied structural schemes is evaluated.