Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
火力 karjoku heating power, steam powermix
真っ暗 makkura (1)total darkness, pitch dark, (2)bleak future, poor prospects mix
発電 hacuden generation (e.g. power)suru
kjoku (1)(uk) long segment of a noh play forming its musical highlight, (n-pref) (2)wrong, improper, indecent; (3)corner, nook, recess, (4)a shadow, a shade; (arch) wickedness, evi ongaku
重油 džuuju heavy oil, fuel oilmix
umi sea, beachjlpt5, leda1, shizen
産出 sanšucu yield, producesuru
土木 doboku public worksmix
自分自身 džibundžišin oneself, myselfmix
閉まる šimaru to close, become closedgodan, jlpt5, verb, vintrans
学習 gakušuu studium, učení segakkou, leda1
食料品 šokurjouhin foodsjlpt4, ryouri
空ける akeru vyprázdnit (láhev)ichidan, jlpt3, leda1, verb, vtrans
取引 torihiki transactions, dealings, businesssuru
引きこもり hikikomori (1)a shut-in, a stay-at-home, people who withdraw from society (e.g. retire to the country), (2)social withdrawal, shunning other people mix