NEW YORK ( TheStreet) -- Satellite TV operator Dish Network ( DISH) raised its bid for Clearwire ( CLWR), topping the existing rival offer by Sprint Nextel ( S) by 29%. Dish made a $6.9 billion offer, or $4.40 a share, in cash. Sprint, which is seeking to buy the remaining half of Clearwire that it does not currently own, has offered $3.40 a share. The increased bid comes just ahead of a Clearwire shareholders' meeting on Friday, where shareholders are set to vote on a deal. Dish has also offered to provide $80 million a month in financing to Clearwire to help the completely stay afloat, up to $800 million in total. Clearwire has said it needs at least $1.7 billion to keep operating. Dish has already offered to buy Sprint itself for $25.5 billion, but faces competition from Japanese wireless carrier SoftBank, which has offered $20.1 billion for a 70% stake in the company. Berkshire Hathaway subsidiary MidAmerican Energy said it would buy Nevada electric and natural gas company NV Energy ( NVE) for $5.6 billion, or $23.75 a share, in cash. The offer equates to about 23% of NV Energy's Wednesday closing price. The Berkshire subsidiary's move comes on the heels of several investments in renewable energy projects as it attempts to expand within the energy sector. NV Energy, which serves customers through Nevada Power and Sierra Pacific Power, said it will keep its headquarters in Las Vegas and continue operating as a separate entity under its own name. The companies said their boards have approved the deal, which they expect to close in the first quarter of 2014. It will be subject to regulatory and shareholder approval. "This is a great fit for Berkshire Hathaway, and we are pleased to make a long-term investment in Nevada's economy," Berkshire's head Warren Buffett said in a statement. Costco Wholesale ( COST) reported a 20% rise in third-quarter profit on increased sales and higher membership fees. The grocery warehouse-club chain said it earned $459 million, or $1.04 a share, last quarter, up from $386 million, or 88 cents a share, the same period last year. Analysts had been looking for earnings per share of $1.03.