Gravity energy storage is a kind of mechanical energy storage. Its energy storage medium is mainly divided into water and solid matter. The charging and discharging process of the energy storage system is realized by lifting the energy storage medium based on the height drop. Because of the strong fluidity of water, the water medium gravity energy storage system can rely on well sealed pipelines, shafts and other structures. Its site selection flexibility and energy storage capacity are limited by the terrain and water source. It is easier to build a large-scale energy storage system near the natural water source. Solid weight type gravity energy storage mainly relies on mountains, underground shafts, artificial structures and other structures. Heavy objects generally choose materials with high density, such as metal, cement, sand and gravel, so as to achieve high energy density.
Suv muhiti energiyasini saqlash tizimi asosan potentsial energiya va elektr energiyasini aylantirish uchun elektr generatori va suv nasosi turbinasidan foydalanadi. Odatda, zaryadlash va tushirish jarayonini amalga oshirish uchun suv valfi, elektr generator oqimi va boshqa parametrlar bilan boshqariladi. Qattiq og'irlikdagi energiyani saqlash tizimi asosan og'irlikni ko'tarish va tushirishni nazorat qilish uchun kran, teleferik, temir yo'l poezdi, vinç, kran va boshqa tuzilmalardan foydalanadi. Quvvatni konvertatsiya qilish tizimi asosan zaryadlash va tushirish jarayonini amalga oshirish uchun elektr generatorining oqimi va boshqa parametrlari bilan boshqariladigan elektr generatorini va mexanik uzatish tizimini o'z ichiga oladi.
British Energy Magazine, jild 190, 2020, "nasosli elektr stantsiyasining tushishi 1200 metr bilan cheklangan, tog'ning tortishish energiyasini saqlashning tushishi esa 5000 metrdan oshishi mumkin". "Tizimda energiyani saqlashning yillik narxi megavatt soatiga 50 dan 100 dollargacha. Pastki va yuqori saqlash stansiyalari orasidagi pasayish va tog‘ qanchalik tik bo‘lsa, energiyani saqlash narxi shunchalik past bo‘ladi". "Tog'ning tortishish energiyasini saqlash gidroenergetika bilan birlashtirilgan. Agar tog'da tortishish energiyasini saqlash elektr stantsiyasi qurilgan tog'da daryo bo'lsa, konteyner qum yoki shag'al o'rniga suv bilan to'ldirilishi mumkin. Bu aralash tog 'gravitatsion energiya zaxirasini yaratadi. gidroelektr stansiyasi va loyihaning texnik-iqtisodiy asoslari sezilarli darajada yaxshilanadi.Tog'ning tortishish energiyasini saqlash tizimining afzalligi shundaki, u tizimning istalgan balandligida suv qo'shishi, tog'ning turli balandliklarida suvdan foydalanishi va tog'ni yaxshilash uchun suv omborini qurishi mumkin. tortishish Energiya saqlash tizimining energiya saqlash potentsiali.
