Capital Allocation in Berkshire Hathaway Energy

Greg, let me ask you one of these capital allocation questions. Berkshire directed 46% of capital expenditure in 2019 to Berkshire Hathaway Energy. Can you walk us through with round numbers, how you think differences in capex spending versus economic depreciation versus gap depreciation? And help explain the time frame over which we should recognize the contractive return on equity from these large investments as we as shareholders are making in Berkshire Hathaway energy?" Greg: We have basically is Warren's highlighting 40 billion in the works of capital. That's over the next effectively nine years, 10-year period. A little, approximately half of that we would view as maintaining our assets, a little more than half of it.